Archive for the ‘ISS’ Category
Down to Earth
Sally Ride is to be posthumously awarded the Presidential Medal of Freedom.
Recently returned ISS Commander Chris Hadfield announced his retirement from the Canadian astronaut corps today.
Last month, the governor of Texas signed a new law that is necessary for SpaceX to build a new spaceport near South Padre Island and Brownsville. The bill allows the mandated closure of Boca Chica Beach – a public state park – on the days of rocket launches. This bill is a big step towards SpaceX making South Texas their second launch site.
Apparently Justin Bieber made a down payment on a spaceflight with Virgin Galactic last week.
If you are a night owl (or the opposite) you should go outside at about 4:30 AM (Eastern) on Tuesday, June 11, and see if you can spot some Gamma Delphinid meteors. The possible meteor outburst may only last 30 minutes or so, but may be dramatic.
The asteroid mining company Planetary Resources launched a “crowdfunding” campaign last month to help them raise money for their asteroid hunting space telescope(s). They are getting close to their $1 million goal. I think it is worth donating (I contributed already) just for the possibility of getting the cool “space selfie” perk they are offering. They are planning to have a small video screen on the outside of the spacecraft that can display photographs that can then be themselves photographed against the backdrop of the Earth.
Warner Brothers intends to make a feature film based on the nonfiction book “Spacesuit: Fashioning Apollo”. I’ll go see it!
On Wednesday, May 29, the second half of Expedition 36 docked to the ISS in the second “express” docking. Launch to docking time was about 6 hours. The new crew consists of Karen Nyberg (American), Luca Parmitano (Italian), and Fyodor Yurchikhin (Russian). Soyuz Commander Yurchikhin is on his third spaceflight. He was just in space exactly 3 years ago for Expedition 24.
Last week, the fourth European transfer vehicle (ATV4) launched from French Guiana on its way to ISS. ATV4 is named “Albert Einstein” and will stay docked to ISS for several months.
Early tomorrow morning, China intends to launch their fifth manned spaceflight. The mission will be Shenzhou 10, and will send three taikonauts to the Chinese Tiangong-1 space station. (via NASA Watch)
The Keck Telescope in Hawaii (where my dad works) was used for some new research into the Big Bang. The giant telescope looked at stars to get spectroscopic data of their Lithium isotope content in order to confirm a prediction made by The Big Bang Theory of the universe’s origin.
Because it’s cool
Perhaps the answer to Life the Universe and Everything is 3, not 42.
Down to Earth
Virgin Galactic has hired two new pilots, including former Space Shuttle Commander and Navy TOPGUN pilot, Frederick “CJ” Sturckow. Awesome!
At the Kennedy Space Center’s new visitor center, the payload bay doors were opened on Space Shuttle Atlantis, which is slated to go on display this summer.
In honor of the new Star Trek movie, here’s something that has nothing to do with space at all. But it’s funny.
A lot has happened at the space station in the past week and a half! Apart from Soyuz TMA-07M returning to Earth on Monday, May 13…
…on Thursday, May 9, in the morning, (while I was working in the Flight Control Room) the astronauts noticed some mysterious debris floating outside the space station…
…which led to an emergency spacewalk to fix a leaky coolant pump only two days later.
For more information, check out my friend and colleague, Anthony, talking about the space station quick fix.
Chris Hadfield’s return to Earth marks the end of a very successful mission that was more than just a typical ISS expedition. Commander Hadfield reached out to people through social media more than any astronaut before. Here is a small “greatest hits” list of some of his photography. But for me, even better than all the pictures from his mission, was the way Hadfield seamlessly connected his love of music to space. Check out this music video he released just hours before coming home last week.
In less successful orbital news, the Kepler Space Telescope – NASA’s planet-finding spacecraft – seems to be in trouble. On May 15, NASA announced that a second of Kepler’s four reaction wheels may be failed. Kepler needs 3 reaction wheels to accurately point the telescope for precision science measurements. If they cannot recover the lost reaction wheel, Kepler’s mission is effectively done. Kepler has been able to discover thousands of planets in our galaxy (most still being officially “confirmed”) but it easily has thousands more left to discover. Save Kepler!
Around the Solar System
In only one day last week, the sun emitted three X-class solar flares (X-class is the biggest class of solar flare, but just like the earthquake scale, an X10 is significantly bigger than an X2, so it’s all relative). Welcome to solar maximum! If you live somewhere where you can see it, there should be some good aurora to see this year.
Remember that rover on Mars? No, not the bigger shiny new one, that one on the other side of the planet – Opportunity. The plucky rover that could just hit a distance record for NASA set by the Apollo 17 moon rover in 1972. Back in 1972, Eugene Cernan and Harrison Schmidt drove their lunar rover 35.74 km in just a few days. After almost 10 years on Mars, Opportunity just broke that record this week. Also, there’s still the Russian moon rover Lunokhod 2 which drove 37 km in 1973. Opportunity still has a ways to go. But it is amazing that she is still going at all!
Down to Earth
I wrote last week about a few updates to Space Shuttle artifact exhibits coming online around the country. And there is yet more news to tell this week.
The exhibit of the Space Shuttle (not) Orbiter Enterprise at the Intrepid Sea, Air, and Space Museum is coming together after recovering from hurricane Sandy. The new upgraded “pavilion” is being built over Enterprise now and will open on July 10.
The last pieces of wrapping paper were taken off of Space Shuttle Atlantis at KSC.
The first Canadarm, or Space Shuttle robotic arm, was put on display at the Canada Aviation and Space Museum last week. ISS Commander Chris Hadfield was linked to the museum live from space for the unveiling.
Speaking of the Canadian Space Agency, Canada also revealed this past week that the new Canadian $5 bill will feature space images, including a picture of the Space Station Robitc arm and an astronaut on a spacewalk.
NASA resigned the contract with the Russian space agency to provide transport for American astronauts to ISS on Soyuz launch vehicles. The renewal paid for seats through 2017 – which is only 3 years before the official end of ISS in 2020 (but everyone expects the program to extend into the late 2020s).
Boeing successfully completed a flight test of the X-51A scramjet known as “Waverider”. This was the longest airbreathing scramjet flight to date (that’s unclassified…).
Not Quite in Orbit
As I wrote about in a separate post, Virgin Galactic had their first powered flight of SpaceShipTwo last week on April 29. The video is too good not to repost.
In the wake of all the excitement surrounding that flight, Virgin Galactic has confirmed that ticket prices are about to go up 25% from $200,000 to $250,000 to account for inflation.
The European Space Agency’s Herschel Space Observatory ran out of helium coolant last week and officially ended its mission.
A 3-D printer will fly to the ISS next year. This is a good idea in how to test ways to make spacecraft more self-sufficient, which will be necessary if humanity ever takes true deep space missions.
Chris Hadfield explains in a little over a minute my job as an Attitude Determination and Control Officer for ISS. Thanks, Chris!
The Fermi Gamma Ray Space Telescope did a debris avoidance maneuver in early April to avoid a nasty collision with an old Soviet Satellite. This was apparently the first time in Fermi’s mission (launched in 2008) that they had to use the thruster system for such a maneuver. This is a common problem for low Earth orbit spacecraft and the ISS has close calls with debris – and performs maneuvers – more than we would like to.
Around the Solar System
I enjoyed this story of unexpected scientific discovery. The team searching the outer solar system for an object for New Horizons to visit after it reaches Pluto happened to discover a new Trojan asteroid of Neptune (he explains what a Trojan asteroid is).
The Mars probes and rovers have woken up from solar conjunction. Opportunity and Curiosity should be off and roving again. Opportunity actually had a minor glitch when NASA initially resumed contact but she recovered no problem.
Down to Earth
A couple of updates on Space Shuttle artifacts being displayed. First, the original external fuel tank test article was shipped from KSC to the “Wings of Dreams Aviation Museum” in Starke, Florida. Second, the space shuttle Atlantis was “unwrapped” at its new display at the KSC visitor center.
Rumor has it that Virgin Galactic might have their first powered test flight of SpaceShipTwo next week.
The Texas state legislature is a few steps away from approving key measures that would enable SpaceX to build a launch site near the Mexico border outside of Brownsville. This week the Texas House of Representatives approved a bill that would allow closure of state beaches during launches. The bill still needs to go to the State Senate before passing.
Mars One, the… company? … that plans to colonize Mars, has opened up their astronaut application process. What the heck, why not apply?
Orbital Sciences successfully launched their first Antares rocket on April 21st. It was a beautiful launch into a clear blue sky. We look forward to seeing them on ISS in a few months.
Up on the Space Station, two cosmonauts – Pavel Vinogradov and Roman Romanenko – went on a six-and-a-half hour spacewalk to work on some external experiments and also some various maintenance.
On Wednesday, the latest Russian Progress resupply craft launched on its way to ISS. The docking is planned for just a few moments from now, on Friday morning (coverage is live on NASA TV if you catch this post right after it goes up). The Progress will be docking to ISS despite a rendezvous antenna that was unable to fully deploy after launch. The retracted antenna is physically in the way of the docking mechanism, so flight controllers will have to come up with a plan to get the antenna out of the way… or something else. Otherwise the cargo inside will not be accessible. One possibility is to plan another spacewalk after docking to move the antenna.
And on a lighter note, Commander Hadfield talks about barf bags in space.
Around the Solar System
At Saturn, the Cassini spacecraft has been observing meteors impacting the planet’s rings. Awesome.
Down to Earth
Earlier this month, the White House released their proposed federal budget for fiscal year 2014. Which includes an allocation of $17.7 billion for NASA. Much has been said about the budget already – but the focuses seem to be on the $200 million cut from planetary science and the proposal to start planning an asteroid retrieval mission. Yes, you read that right, the idea is that NASA will send a robotic mission to find a worthy asteroid to drag back to cislunar space (that’s fancy space talk for bringing it as close to Earth as the moon). This may be the direction, focus, and “mission” that many have been saying was lacking from NASA’s portfolio since the cancellation of Constellation and the Space Shuttle. It is far too early to know what will come of it, at least until the mission starts being paid for in 2014. Personally, I think the idea makes sense and is exciting… more thoughts on this in a later post.
In truly down to Earth news, the ambitious Thirty Meter Telescope project received a permit to begin construction atop Mauna Kea in Hawaii. They project plans to begin construction in early 2014. the Thirty Meter Telescope (or TMT) will have almost 10 times the light gathering area of the Keck telescopes, also on Mauna Kea. TMT is going to be an amazing tool for astronomers. It should be able to look “further back in time” and see aspects of the beginning of the universe as well as be an awesome exoplanet finding tool, among many other science applications.
The Navy has announced they will be naming a new research vessel after Sally Ride (first American woman in space).
Virgin Galactic has been busy doing glide flights of SpaceShipTwo, getting ready for their first powered flight this year. In their most recent flight last week, the engine had a “cold flow” test – they flowed some propellant through the engine but did not ignite it.
Boston.com’s “The Big Picture” blog has a nice photo essay of two different Mars analog missions going on here on Earth.
After a planned launch this past Tuesday was delayed, today Orbital Sciences is going to attempt the maiden flight of the Antares rocket, which is planned to take the Cygnus freighter on resupply flights to the ISS. The launch is planned for 5 PM Eastern today (Saturday, April 20). If you read this in time, you can follow along at Spaceflight Now’s mission status center.
Around the Solar System
The Mars rover Curiosity went into hibernation starting on April 4 for the “solar conjunction”. This is the period when Mars is behind the sun as seen from Earth, making it difficult to communicate with probes at the red planet.
The Lunar Reconnaissance Orbiter was able to spot the fresh craters left by the GRAIL missions two probes that crashed into the moon last year (on purpose).
Some Mars enthusiasts from Russia have been scouring Mars Reconnaissance Orbiter images to look for the lost Mars 3 lander that the USSR sent to Mars in 1971. They seem to have found it!
NASA has announced two new missions in the agencies Astrophysics Explorer Program. Two space telescopes, TESS and NICER, are being developed for launch later this decade. TESS (Transiting Exoplanet Survey Sattelite) is somewhat of a successor to Kepler, and will be an Earth-orbiting satellite that hunts for exoplanets. NICER (Neutron Star Interior Composition Explorer) will be attached to the International Space Station and will look at x-ray wavelengths from neutron stars.
As I wrote about in my last post a week ago, ISS ops have been very busy lately. We were able to unberth and release the SpaceX Dragon capsule last Tuesday morning, as planned. It splashed down a few orbits later in the Pacific, while I was asleep, and was successfully picked up by SpaceX’s contracted recovery ship. I only got a bit of a rest after the Tuesday morning night shift as I had to work the day shift back in the control room Wednesday through Friday. More on what I got to do and see those days in the “In Orbit” section below. Anyway, that’s my excuse for the delay in posts lately. But you don’t really care – on with the space news!
Down to Earth
In a bit of grim space politics news – unless you are all about commercial only, I suppose – last week NASA’s 2013 budget finally became clear after the US Congress passed a big spending bill. The bill is better than the continuing resolutions* that a lot of the US government has been dealing with for a while – but it does nothing about the “sequestration” cuts across all Federal departments. This means that NASA ends up with greater than a 7% cut on the 2011 and 2012 funding levels. Ouch.
*A continuing resolution is simply an agreement to fund agencies or programs at the previous years levels because no agreement can be made on a new budget.
Masten Space Systems’ Xombie vertical-take-off-and-landing vehicle recently made its longest and highest flight to date, soaring over 500 meters according to their press release (no video yet available that I can find). Masten is using a guidance system developed by Draper Labs (of MIT) in order to build a testbed type craft on which NASA or other customer’s can test planetary landing instruments “without leaving home”, so to speak. I wrote about a similar test of the Xombie systems over a year ago, so this project has been in development for a while. This flight was ten times higher than the test last year.
The Aerospace Industries Association (AIA) has started a crowdfunding project at IndieGoGo to try to pay for NASA’s video “We Are the Explorers” to be run in American theaters before the movie Star Trek Into Darkness this spring (no, I don’t want to discuss if I capitalized that title correctly).
This is a clever, and apparently legal, way to get around the advertising ban that NASA is under. I donated!
Speaking of space cinema, a new IMAX movie was announced that will feature Earth photography from space. The film is being co-produced by Disney, and no release date or title has been announced.
Jeff Bezos, CEO of Amazon.com – who seems to be trying to compete – sponsored an expedition that has raised an F-1 rocket engine straight off the sea floor in the Atlantic. They do not know for sure which rocket the engine(s) came from, but they do intend to restore and display them. It seems they would likely be displayed at the Smithsonian; partly because the engines are still technically NASA’s property.
After Dragon left, the biggest event aboard ISS in the past two weeks was the docking of Soyuz 34 (or 34S to us) last Thursday only 5 hours and 45 minutes after launch. This was a new quick rendezvous profile that had previously only been used on flights of the unmanned Progress resupply spacecraft.
The Soyuz brought two cosmonauts – Pavel Vinogradov and Alexander Misurkin – and NASA astronaut Chris Cassidy. The speed of the launch-to-docking timeline was impressive even to those of us tied into ISS operations. As I was on the day shift Thursday, I had the privilege of giving a “Go” for launch at the end of my shift – and the colleague who I handed over to started prepping ISS systems for Soyuz arrival right after I left! I heard that the Soyuz reached ISS before the NASA personnel who were in Kazakhstan for the launch made it back to Moscow…
Amazingly, ISS Commander Chris Hadfield got this shot of Baikonaur at the moment of Soyuz ignition (by the laws of orbital mechanics, ISS often passes right over the location of launch for many ISS supply missions).
Speaking of which, if you haven’t been following ISS Commander Chris Hadfield (@cmdr_hadfield) on Twitter, you are seriously missing out on some stunning high resolution Earth photography posted nearly in real-time.
Also, the epic timelapse photography from the ISS Cupola… (via APOD).
Or if you want the more practical, here’s how to brush your teeth (I wasn’t originally going to share this until I heard the music kick in halfway through and started laughing).
Around the Solar System
Comet C/2012 F6 Lemmon (or just Lemmon for short) is set to start being a target for skywatchers this week (depending on your latitude). From the finder charts, it looks like Lemmon will still be too close to the sun at sunrise for most observers to have a chance at. Later in the month, Lemmon will move higher in the sky at dawn and may turn out to be as bright or better than Comet PanSTARRS which some of us enjoyed last month. Of course, the catch is that Lemmon will be a morning object rather than an evening object, so is likely to attract fewer hunters. You can bet I will try to see it!
The European Space Agency and Roscosmos (of Russia) formally signed an agreement last month to move forward with their Exomars mission, which will consist of orbiters and a rover to be flown to Mars later this decade. This is the big mission that NASA had to pull out of due to budget reasons.
New research using the Keck Telescopes in Hawaii has revealed compelling evidence for the nature and composition of undersea ocean’s on Jupiter’s moon Europa. Read a great summary of the research at Phil Plait’s blog.
It is 8 PM on Monday night, March 25, but if you asked me what day it was when I woke up this morning I don’t know how accurate the answer would be – I have been awake on odd hours since Friday. I am headed into work in 2 hours to work a night shift – 10 PM to 8 AM. Usually the night shifts start at 11 PM in ISS mission operations, but tonight the ISS crew is getting up early – at about 4 AM on their clock – so we have to get there early as well. Usually on a night shift in the ISS Flight Control Room you would expect to see 5 to 10 people, but tonight there will be well over 10 for the unberth and departure of SpaceX’s Dragon capsule, the 3rd to visit ISS.
As far as NASA TV is concerned, the action happens tonight (or tomorrow morning, if you prefer). They will cover the departure and landing of the capsule tomorrow intermittently – just the exciting bits. But as with most things in this job, the successful execution of an event is really just the last step. Last Thursday morning there was a big ISS management meeting (the IMMT, or ISS Mission Management Team) wherein the Monday morning departure of Dragon was approved. Just 24 hours later I found myself in another ISS operations meeting listening to SpaceX explain why they had to delay departure and de-orbit due to bad weather forecasts for the Pacific landing zone. Suddenly instead of comfortably heading into the weekend with a great Monday morning plan, we were trying to get a one day slip plan together before close of business. We had a working meeting with everyone from the planning team, from systems specialists to flight surgeons, to discuss how to easily do the replan. A replan is more complicated than just saying “we’ll do it the same time tomorrow” because of the multiple space agencies and scientific institutions with a stake in day-to-day operations aboard ISS.
So, long story short, I put a few extra hours in and worked until 6 on Friday – not bad – while I know some other people put in more hours over the weekend working on the plan. Up in space, the astronauts got an extra day to pack cargo that is supposed to be sent back home on Dragon. The hatch was closed today, and the crew should be asleep now, with a long day ahead tomorrow. The crew is closely involved with both the unberthing process (taking out the bolts holding Dragon to ISS) and then the procedures to let go of Dragon with the station robotic arm.
This will be my first time supporting a “free-flyer*” docking or undocking – I will be in the MPSR (or Multi-Purpose Support Room) while a more experienced ADCO sits in the main Flight Control Room. The motion control system is a key part in free-flyer release, so I will be excited to monitor the system and even get to send some important commands tonight. If you want to follow along on NASA TV, release is planned at about 7 AM (Eastern) on Tuesday (maybe a few minutes early or late). And for the real geeks, I would suggest pulling up ISS Live, which lets you monitor live ISS telemetry. You can use my post from HTV-3 rendezvous to get a sense of what events will be happening (release is basically just a rendezvous in reverse).
*Free-flyer refers to all visiting vehicles to ISS for which rendezvous involves capture with the SSRMS (Space Station Remote Manipulator System). This inclues SpaceX Dragon, JAXA’s HTV, and Orbital Cygnus.
It has been a while since I have posted one of my weekly space news links posts. Part of the reason has been a whirlwind move that we (my girlfriend and I) made from our apartment into a new house. We currently don’t have internet, which hampers my blogging a bit. But also, I have been busy at work, including having the privilege of working rather closely on the current SpaceX mission to ISS, which has been exciting. I even attended a joint planning meeting for the mission today to talk about unberth and departure of the Dragon capsule on March 25th, which I will get to support from the Mission Control Center.
Down to Earth
It’s official. As of late last month, the US House of Representatives finally passed a bill to rename the Dryden Flight Research Center in California the Neil A. Armstrong Flight Research Center. The proposal still needs to be approved by the Senate.
An international research team working in Antarctica has found an 18 kg meteorite on the ice surface of that barren continent. This is the largest meteorite find in Antarctica since 1988.
Millionaire and former space tourist, Dennis Tito, announced last month that he intends to create a new space “adventure” (not venture) known as Inspiration Mars. The intent of the project is to send humans (ostensibly a single married couple) on a circum-Martian flight that would take about 500 days. The mission would not involve a landing on the planet, due to cost and complexity, but would seek to inspire a generation and possibly lead to greater adventures (and ventures) in the future. Color me skeptical, but I hope they can do it! Fundraising will be a challenge.
Here are some helpful ideas of how Inspiration Mars might be able to generate revenue to make their mission a success.
SpaceX did another hover test of their huge Grasshopper vertical landing test rocket. Cool stuff.
On March 1, SpaceX successfully launched another Dragon cargo craft to ISS on the first attempt.
SpaceX had some issues with their propellant system that delayed their spacecraft’s arrival at ISS by a day. Dragon arrived with no problems on Sunday, March 3, after many meetings to discuss the issues and agree to a replan. I was working in the Houston Mission control Center that weekend and was impressed to see the machine of mission operations chugging away to produce such a quick turnaround of the timeline!
I enjoyed watching the ISS crew open the Dragon hatch and begin unloading on Sunday evening, which I already wrote about in a previous post.
Around the Solar System
On Mars, the Curiosity rover is having some unknown computer memory issues. On February 28th, ground controllers intentionally commanded the rover to use the backup computer, which put the rover into safe mode (coincidentally, on the same day that SpaceX’s Dragon capsule was having issues). The rover is currently functioning while teams back on Earth prepare to send software “patches” to the rover later this week.
NASA’s Van Allen Probe mission has discovered a third distinct radiation belt around Earth.
This week, the comet panSTARRS is making an appearance in the Northern hemisphere’s skies. This is one of the two comets (the other being comet Lemmon) that were supposed to make a splash this year. PanSTARRS has not turned out to be dimmer than hoped, but still worth looking for. The comet just passed the sun and is coming around the other side, which is why it is fading out of peak brightness while also creeping higher above the horizon after sunset. I was able to find panSTARRS with my binoculars this evening and she is definitely pretty, if small.
Speaking of comets, a newly discovered comet, named Siding Spring, is predicted to have a very close approach of Mars (not us, phew!) in late 2014. The uncertainty in the orbit leaves the possibility open that the comet make actually impact Mars. This would be a bad day for Mars and our spacecraft stationed there. Phil Plait explores the possibility of destruction, while Emily Lakdawalla considers the more benign possibility of a nice meteor shower.
Last weekend, the six-man crew onboard the ISS got a special delivery from Earth. The third in what we hope will be a long line of SpaceX Dragon capsules was grabbed by the space station robot arm on Sunday morning. It didn’t take very long after the Dragon was firmly attached for the crew to start working diligently to get the hatches open and get to the cargo inside, even though it was supposed to be partly their day off.
Why the rush? Well if you had only eaten fresh food a few times in the last four months you would be excited too! About 2-4 cargo deliveries will happen during an astronaut’s stay on ISS – so that means you only get to enjoy fresh fruit and vegetables in your diet for a few weeks of your stay.
I was on shift in ISS mission control on Sunday when the crew got the hatch open and you bet they wanted to know where the bags of apples were stored away. Not only did they find the expected NASA manifested bag of apples, tomatoes, and other items, but SpaceX had hidden away a special care package of extra apples and oranges. Their excitement was clear and I’m sure they had a good dinner that night.
What I think comes to light in this case is the interesting economics of supplying a space station, or I suppose any remote operating base. An orange is cheap – your neighbor’s tree might drop some over the fence into your yard and they would never know they were missing nor probably care. But the cost of launching those oranges to ISS makes them worth a lot – not quite equivalent to gold by weight, but getting close. Imagine if the trip to the grocery store cost you 10,000 times more than the groceries themselves? That’s a cost of living that would make even San Franciscans cringe.
This is obviously one important reason that spaceflight is so expensive. By having companies like SpaceX to run supply missions, launch costs can be reduced through efficiency and frequency. But even so, launch costs can only drop by so much. Thus, we will never truly be a spacefaring species unless we learn to be self-sufficient. The European colonies in America only prospered when they learned to live off of the local resources. As long as oranges are worth $2,000, we will be stuck in low earth orbit like some colonists in a coastal fort waiting for the next ship from England.
Someday the lessons we are slowly learning about self-sufficiency on ISS and elsewhere (like bases in Antarctica) will take us outward – but until then I would hate to be the astronauts up there stuck with the guilt of eating a $2,000 orange. What does it feel like to know that so much effort went into getting you just a few bites of fruit?
Wow, it’s been a busy week and a half! Ten days is the longest I’ve gone without posting some links since I started my blog over a year ago. Not only has space news been busy, with asteroids galore, but I have been busy too, with a weekend getaway last weekend and then 3 nights of ISS mission ops this week. Hopefully the news I share below will get us all back up to speed!
Down to Earth
The first thing I have to talk about is the asteroid impact in the Chelyabinsk area of Russia in the Ural mountains. The short story is that just hours before the much anticipated fly-by of large asteroid 2012 DA14 last Friday, February 15, an asteroid about 15 meters across entered the Earth’s atmosphere above Russia and exploded without warning over a relatively large city in Russia. The airburst was the equivalent of may kilotons of TNT and it managed to cause widespread injury and property damage (no reports of deaths that I am aware of).
Here is a pretty good video of the meteor.
And this one has the sound of the meteor exploding. Scary.
Experts are sure, based on tracing the Chelyabinsk meteor’s orbit back the way it came, that 2012 DA14 and Chelyabinsk are unrelated. It is what you might call a “cosmic coincidince”. Phil Plait talks about the chances of such a coincidence and also the sober reality that we need to take asteroid threats more seriously.
The more interesting coincidence to me is that asteroid impacts of this size are only expected to happen about once a century. The last large impact (that is known) happened in 1908, also in Russia.
Maybe not surprisingly, a weather satellite got some brief images of the smoke trail from the Chelyabinsk meteor. I don’t want to leave poor 2012 DA14 out to dry, so here’s a timelapse of its flyby of Earth.
In some non-asteroid news, the new Space Shuttle display at KSC in Florida is officially opening on June 29. This date was announced at an unveiling of the facility’s new logo.
The test firing of Orbital Science’s Antares rocket was completed successfully earlier this evening. This is good news for their program, which needs to catch up with SpaceX. SpaceX is getting ready for their third cargo flight to ISS next week.
The mayor of Brownsville, Texas met with Elon Musk of SpaceX last week to discuss further the possibility of SpaceX building their next launch site on Boca Chica Beach in South Texas.
NASA astronauts aboard ISS had their first public Google+ hangout. Cool!
There was a bit of excitement in ISS mission ops earlier this week when the first day of ISS computer software upgrades did not go as planned. A computer restart did not execute properly and it resulted in a temporary loss of communications between ISS and mission control. You may have heard about it, since it was all over the news when it happened on Tuesday. Fortunately, flight controllers, with the help of the crew, were able to resolve the problem and the software upgrades were completed. All is well in space!
Around the Solar System
Mercury had its longest “Eastern elongation” last week – meaning it was at its highest point above the horizon at sunset, as seen from Eearth.
The new company “Inspiration Mars Foundation” – founded by space tourist Dennis Tito – claims to be planning a 500 day Mars trip to be launched in 2018. I wish them luck.
This week it was announced that the smallest exoplanet ever discovered was found 200 light years away. The planet is Kepler-37b (meaning it was found by the Kepler mission) and is only 2,400 miles in diameter, which makes it smaller than Mercury. As usual, the planet is far too close to its parent star to be habitable in any way.