Archive for the ‘astronomical event’ Category

Weekly Links

Down to Earth

Astronauts Mike Fossum and Mike Baker announced their retirement from NASA last week.

NASA announced that it will be funding two new robotic missions to study distant asteroids. The Lucy probe will take many years to go all the way out to study the Trojan asteroids, which share Jupiter’s orbit. The Psyche probe will travel to an asteroid named Psyche which is a solid iron asteroid. It will be the first large iron asteroid visited by a spacecraft.

In Orbit

The one and only orbital launch since my last post on January 5th was yet another Chinese rocket. This launch on the 9th carried several small Earth observation satellites into orbit.

Up on the ISS, the Expedition 50 crew completed two successful spacewalks to upgrade a portion of the space station’s power systems to use new lithium-ion batteries. Last Friday, January 6th, Peggy Whitson and Shane Kimbrough completed the first spacewalk and yesterday, Friday, January 13th, Shane Kimbrough and Thomas Pesquet completed the second. Whitson’s 46 hours over 7 spacewalks puts her in an elite class at 14th on the list of most spacewalking hours ever by a human. Shane also has an impressive 25 hours over only 4 EVAs, but it keeps him off this list of top 30 humans on Wikipedia (30th place is just over 38 cumulative hours. Also note that Whitson would only need one more spacewalk on her current mission to pass Sunita Williams’ 50 hours in 7th place for most hours for a woman). Here are some video summaries from NASA and pictures from the spacewalks:

Around the Solar System

NASA’s Mars Reconnaissance Orbiter (MRO) took this incredible image of the Earth and moon from Mars orbit.

Fascinating analysis of some odd terrain on Pluto.

JPL has put together a new compilation of images from the Huygens probe descent to Saturn’s moon Titan, 12 years after the event. The mothership, Cassini, will end its mission later this year.

Out There

Astronomers observing a distant binary star have concluded that they will collide and merge in roughly 5 years, creating a bright nova that will be visible with the naked eye from Earth. Mark your calendars for 2022!

Weekly Links

Here’s your busy June update!

Down to Earth

Blue Origin launched their reusable New Shepard rocket for the fourth time, with a hosted webcast this time. Here is a video of the flight:

A Saturn V first stage, meant to be used on the Apollo 19 flight, was moved to the Stennis Space Center’s visitor center for display, along Interstate 10 in Mississippi.

During a congressional hearing last week, the issue of astronaut post-mission health care was discussed.

This is not strictly space news, but the deep winter rescue mission from the South Pole is just as harrowing and difficult as spaceflight in some ways.

A team of astronauts are going on a multi-night spelunking trip this month as a spaceflight analog training mission.

In Orbit

The new 3D printer aboard ISS by Made In Space has printed its first functional tool.

The Orbital ATK Cygnus cargo vessel was released from the ISS on June 14th and re-entered the atmosphere on June 22nd. In the meantime, NASA conducted the SAFFIRE in-flight fire experiment. Here’s some of the video they recorded:

Also returning to Earth this month, but in a more controlled fashion, was there astronauts aboard Soyuz TMA-19M: Tim Peake, Tim Kopra, and Yuri Malenchenko.

Here are all the orbital launches since my last post on June 6th:

  • A Russian Proton rocket carrying a communications satellite (June 9).
  • A ULA Delta IV rocket launch from Florida carrying a spy satellite (June 11).
  • A Chinese launch of one of their navigation satellite (June 12).
  • A SpaceX Falcon 9 rocket with two communications satellites (June 15).
  • A European Ariane 5 rocket carrying two communication satellites (June 18).
  • An Indian PSLV rocket carrying a slew of satellites including a flock of PlanetLabs Doves (June 22).
  • A ULA Atlas V rocket carrying a US military communications satellite (June 24).

The SpaceX launch, as usual, was the most exciting, with another ASDS landing attempt. They missed the landing this time. Here are some pictures of the wreckage returning to port.

Around the Solar System

New analysis of Pluto has led to the hypothesis that the dwarf planet may have a subsurface ocean… really!

The Mars Reconnaissance Orbiter (MRO) got a new shot of the rover Curiosity on the slopes of Mount Sharp.

You’ve got to love this trailer for Jupiter Orbit Insertion (JOI) of the Juno probe, coming up on July 4th.

Weekly Links

Down To Earth

Some new videos from Blue Origin and SpaceX of their recent rocket successes were released this past week:

The astronaut Kelly brothers, Mark and Scott, had their childhood elementary school named after them this past week.

Two astronauts, Scott Parazynski and Brian Duffy, were inducted into the astronaut hall of fame.

The amazing Thierry Legault has done it again, this time taking a video of the ISS transiting the sun at the same time as the Mercury transit on May 9th.

An unusual parade happened in Los Angeles on May 21st when the last Space Shuttle External Tank was towed from the coast to the California Science Center.

In Orbit

The Indian Space Research Organization launched their new experimental space plane on May 23rd. The uncrewed vehicle actually didn’t make it to orbit, or even to space, reaching only a peak altitude of 65 km. Still, reaching Mach 5 on re-entry is no joke.

The only other notable rocket launch since my last post on May 9th was a Chinese low earth orbit (LEO) reconnaissance satellite launched on May 15.

Around the Solar System

Some recent experiments in a Martian atmosphere simulator have given us an update on the Recurring Slope Linae (RSL), which were announced last year as evidence of flowing liquid water on Mars. It may be that ice boiling directly to a gas may be causing the features.

NASA’s flying telescope, SOFIA, has detected atomic oxygen in the atmosphere of Mars. Atomic oxygen is highly reactive and thus can tell us a lot about what is going on at Mars, potentially even the chance for life.

Speaking of Mars, check out this new image from Hubble. Mars is at opposition this week – or the closest approach to Earth – making it a great target for Earth-based astronomers.

Out There

You probably didn’t miss this story: NASA announced the confirmation of more than 1,200 new exoplanets discovered by the Kepler Space Telescope. This brings the total planets discovered outside our solar system to over 3,300 worlds.

Weekly Links

Down to Earth

Caltech has announced that Michael Watkins will replace Charles Elachi as director of the Jet Propulsion Laboratory (JPL) in California.

New legislation in the US Senate, if passed, would put fallen astronaut Christa McAuliffe on a dollar coin for the 30th anniversary of the loss of Challenger.

Don’t miss today’s (Monday, May 9) transit of the sun by Mercury. If you don’t have the skill, equipment, or location to view it yourself, you can follow online with a live feed from various sources.

The joint European-Russian Mars rover project ExoMars has been delayed from the 2018 to 2020 launch window.

NASA’s Langley Research Center has named a new building for Katherine Johnson, the mathematician who was awarded the Presidential Medal of Freedom last year.

In Orbit

Early on the morning of May 6, SpaceX launched a commercial communications satellite on a Geostationary Transfer Orbit. The launch was a beautiful and nominal night launch. After Main Engine Cut Off (MECO) the Falcon 9 first stage flew back to the Autonomous Spaceport Drone Ship (ASDS) for another successful landing at sea. Are you not entertained?

Speaking of SpaceX, don’t forget to tune into NASA TV on May 11 for coverage of their Dragon spacecraft departing the International Space Station.

And as usual, the ISS crew has been busy sharing their view on high with us. Here are some stunning recent posts from their Twitter accounts:

In Orbit

Cassini did some recent observations of Enceladus by watching a the moon transit in front of a star, revealing new clues about the ice world’s geology.

Out There

The TRAPPIST observatory in Chile has discovered a solar system of three small planets about 40 light years from Earth.

Weekly Links

Down to Earth

Buzz Aldrin has published a new book titled “No Dream is Too High.”

United Launch Alliance and Bigelow Aerospace have announced a new partnership. Bigelow will launch their enormous BA-330 expandable module on a ULA Atlas rocket.

The SpaceX Falcon 9 recovered first stage returned to port last week after landing on a droneship the week before. Check out the pictures.

An online auction for a camera lens used on the moon during Apollo 15 is now open.

Russian billionaire Yuri Milner, who was in the news last year for pledging millions of dollars to SETI, has announced his plan for a robotic interestellar mission called Breakthrough Starshot.

The last external tank from the Space Shuttle program left Michoud in Louisiana last week on an ocean voyage to California, where it will become a part of the display with Space Shuttle Endeavour.

Orbital ATK and Intelsat have struck a deal that may lead to the first commercial use of “robotic satellite servicing”.

In Orbit

NASA’s Kepler Space Telescope unexpected entered emergency mode last week, but has since been successfully recovered. The cause of the event is still being investigated.

The new Bigelow Expandable Activity Module (BEAM) was installed on the Node 3 module of ISS on Saturday. Here is a time-lapse of it being moved from the SpaceX Dragon cargo craft via the robotic arm.

It’s been a while since I have shared links to some of my favorite tweets from ISS here. The three US astronauts onboard have been furiously posting beautiful pictures of Earth pretty much every day. Here are just a few recent ones from just the past couple of days.

And here is a quick video from Jeff Williams showing us around the cupola and their cameras.

Around the Solar System

This is pretty cool. An amateur astronomer captured a video of a fireball in Jupiter’s atmosphere, as a large asteroid or some other object slammed into the planet.

Weekly Links

Down to Earth

The joint Russian-European Mars mission, ExoMars, has been prepped for launch and is on the pad in Kazakhstan. Launch is Monday, March 14.

Speaking of Mars, NASA’s delayed InSight lander has been granted a mission extension for a new launch date in 2018.

Blue Origin invited several journalists to tour their headquarters near Seattle, Washington last week. Some new details about their future spaceflight plans were revealed.

In Orbit

Two successful orbital launches this past week: a communications satellite launched by ESA from Korou and a navigation satellite launched by ISRO from Satish Dhawan Space Centre in Sriharikota, India.

Next week, on March 18, three ISS astronauts will launch aboard Soyuz TMA-20M from Kazakhstan to join Expedition 47. Here’s the NASA TV schedule for the launch. NASA astronaut Jeff Williams has been active on Twitter during flight preparations, posting short “video blogs” like this one:

Meanwhile, Scott Kelly has been video blogging his return to Earth:

Be sure to always follow all of NASA’s astronauts on Twitter – but especially those in space – because they are always sharing something exciting!

Around the Solar System

A solar eclipse thrilled people in Oceania last week. For those of us who don’t live on an island in the Pacific, we can still enjoy these views from NASA’s DSCOVR satellite.

NASA’s New Horizons probe has discovered “methane snow” on Pluto’s mountain peaks.

Weekly Links

Down to Earth

NASA has selected five new flight directors for manned spaceflight programs.

Last week in Houston a new opera titled ‘O Columbia’ premiered for just two nights at the Houston Grand Opera. The production incorporated the tragic loss of Space Shuttle Columbia in the second act. I didn’t get to see the show, but according to The Houston Chronicle a preview at the Johnson Space Center received a standing ovation.

Don’t forget to go out Sunday evening, September 27th, and see the lunar eclipse!

In Orbit

Two more orbital rocket launches last week. The first was a Rokot launch vehicle from Russia with several military communications satellites. China seems to be on a roll this month and launched another new rocket, the Long March 11, with several cubesats.

On Monday, September 28th, the Japanese HTV5 cargo vehicle will leave the ISS. You can follow along on NASA TV.

Since it’s a bit of a slow week for spaceflight news, here are some cool pictures from ISS as filler!

Around the Solar System

NASA’s Opportunity rover is preparing for the Martian winter by positioning itself on a North-facing slope in Marathon Valley.

Out There

Check out this actual imagery loop of the planet Beta Pictoris b as it moves through its orbit 63 light-years away.

Weekly Links

Down to Earth

Russia recently made it official that they are willing to fund joint operations of ISS through 2024. Meanwhile, NASA sent Russia almost half of a billion dollars to renew the contract for sending astronauts to the ISS on Soyuz spacecraft. The new contract is to protect against further slips in the commercial crew program schedule, as insufficient funds are being allocated by Congress, according to administrator Charlie Bolden.

NASA’s ISS program manager, Mike Suffredini, is retiring from NASA. His replacement will be Kirk Shireman.

Buzz Aldrin has taken a faculty position at Florida Tech.

Don’t forget that the Perseid Meteor Shower is this week!

In Orbit

Two cosmonauts on the ISS will go for a spacewalk Monday morning (August 10). You can watch live on NASA TV.

NASA has named the astronauts that will make up Expeditions 51 and 52 in 2017.

Check out this view of the moon passing in front of the Earth from the DISCOVR satellite.

As usual, lots of great tweets from the crew on the ISS this week, including stunning shots of Super Typhoon Soudelor.

Around the Solar System

Check out this animation of our current map of the asteroid Ceres, from NASA’s Dawn spacecraft.

Comet 67P, Where ESA’s Rosetta probe is in orbit, will reach perihelion this week. ESA is hosting a Google Hangout on August 13th.

Comet orbit diagram from ESA

The number of potential landing sites for NASA’s “Mars 2020″ rover has been reduced to 8 candidates.

Meanwhile, Curiosity just celebrated its third anniversary on Mars.

Weekly Links

Down to Earth

Last week, on Wednesday, March 11th, Orbital ATK conducted a successful static test fire of one of the solid propellant rocket motors that will be used for the SLS rocket.

The next day, on the 12th, the Soyuz carrying Butch Wilmore, Elena Serova, and Alexander Samokutyaev returned to Earth. Check out these incredible pictures of their descent and landing. Looks like it was a beautiful (cold) day in Kazakhstan.

With Butch and crew on the ground, Expedition 43 is underway with only three crew members onboard – Terry Virts, Samantha Cristoforetti, and Anton Shkaplerov. They are a good trio to have onboard together, as they are all very active on Twitter, providing us awesome views of Earth from on orbit! However, they will be joined very shortly by Scott Kelly, Gennady Padalka, and Mikhail Korniyenko who are launching next Friday, March 27th.

On March 18th, many space fans celebrated the 50th anniversary of the first ever spacewalk, conducted by Alexei Leonov on the Voskhod 2 mission.

Leonov is 80 years old, and did a press circuit for the occassion!

In less fun news, there has been a lot of talk about a couple of space-related hearings in Washington, D.C. that happened earlier this month. Let me break it down into the biggest talking points for you:

1. On March 4th, NASA Administrator Charles Bolden appeared before the “House Appropriations Committee” for a budget hearing. Some folks latched on to a discussion between Bolden and Congressman John Culbertson about whether NASA has a plan for ISS if Russia decides to no longer participate. Given that the program is a joint venture that depends on both parties, it seems to me like an unfair premise.

2. On March 12th, Bolden appeared before the “Senate Subcommittee on Space, Science, and Competitiveness”. One of the big takeaways was Bolden’s comments about why the Opportunity’s rover’s budget is being cancelled in 2016. The Planetary Society has a pretty good explanation of why that is a bad idea.

3. In the same hearing, Bolden was asked by Texas Senator Ted Cruz why NASA spends so much time on Earth science instead of exploring space. Of course, Earth science is part of NASA’s core mission. Parabolic Arc explains why Ted Cruz doesn’t seem to know what he is talking about.

4. Lastly, the senate held an “Army and Air Force hearing” on March 18th. There was some discussion about the RD-180 engine issues (see my earlier post) and whether the Air Force could provide a replacement by the 2019 deadline. USAF and ULA officials say it is not possible. Some of the senators scolded that no progress has been made. However, Aerojet recently conducted a test of their new AR1 engine, which may be a starting point for a replacement.

In Orbit

I will optimistically put this news in the “in orbit” section: with bids on the CRS-2 (commercial resupply services) contract due, both Lockheed Martin and Sierra Nevada have been promoting their ideas for how to get cargo to and from the ISS. Lockheed Martin has a unique design involving a reusable cargo ferry that stays in orbit and transfers cargo to a rocket stage with a robotic arm. Sierra Nevada is proposing an unmanned variant of their Dreamchaser spaceplane, which recently lost out on the ISS crew transfer contract (CCtCAP).

Speaking of ISS cargo, NASA has extended the contracts with SpaceX and Orbital ATK by a few additional flights in 2017 to close the gap between CRS and CRS-2.

Alright, back to the fun stuff. Up in space, the pretty pictures from the ISS crew just keep on coming:

Today there is a total solar eclipse in the Northern Atlantic and Arctic. Hopefully the astronauts can get some views from the ISS! In fact, Cristoforetti just posted the below picture just a few minutes ago, as I write this.

Around the Solar System

Recent observations of Jupiter’s moon Ganymede using the Hubble Space Telescope confirms the presence of a sub-surface ocean. Wicked.

Meanwhile, Cassini has discovered evidence or hydrothermal activity below the surface of Saturn’s moon, Enceladus.

The MAVEN spacecraft has discovered ultraviolet aurora at Mars.

Out There

There is a new nova in the constellation Sagittarius bright enough to see with binoculars. It was too cloudy this morning in Houston to spot it but I will keep looking!

Weekly Links

Down to Earth

Thankfully, this week was a bit quieter than last. However, speculation, discussion, and official press conferences and releases continue in the wake of the loss of both an Orbital Sciences’ Antares rocket and SpaceShipTwo.

Orbital Sciences has stated that the first stage AJ26 engine – in particular, a turbopump failure – is suspected in the accident that ended their ISS resupply flight only 15 seconds after launch. Fortunately for NASA, Orbital has a plan to maintain their logistics contract to ISS. The company plans to accelerate an already scheduled upgrade to the Antares rocket propulsion system. The implication seems to be that the AJ26 engines will be retired (which are refurbished Soviet NK-33 engines built decades ago). The second piece of the plan is that Orbital will contract out ISS cargo flights to other launchers (exactly who is not identified) until the new Antares upgrade is ready. Therefore, no further flights of Antares with the AJ26 will be attempted. The company announced both the initial findings of the accident investigation and their forward plans in a press release on November 5th.

On the other side of the country in the Mojave Desert, there are still a lot of questions concerning what caused the loss of SpaceShipTwo and one of her pilots, as well as what the impact might be on the project. In the fourth daily onsite press conference from the NTSB (full briefing below), it was revealed that cockpit video shows Michael Alsbury (who did not survive) prematurely unlocked the SpaceShipTwo wing feather system. However, the feather was not actually deployed. Further investigation is needed to determine the complete error chain.

Unfortunately for Virgin Galactic, but unsurprisingly, a number of ticket holders are known to have already asked the company for a refund on their deposit for a future ride on SpaceShipTwo. The company is likely to experience significant delays before their first commercial flights, but at least their replacement vehicle is already under construction.

Before we move on to the cool stuff actually happening in space, there are two more earthbound topics I wanted to cover.

First, the midterm elections in the United States. The senate is now controlled by the Republican party and Casey Dreier of the Planetary Society has a brief but comprehensive assessment of what this will likely mean for spaceflight (including planetary science, manned spaceflight, and commercial enterprises). The summary is that no sweeping change, good or bad, is likely to be a direct result of this political swing. But it is hard to know.

Lastly, the much anticipated science fiction film Interstellar was released to what appears to be mostly great reviews. Users on IMDB are rating the film a staggering 9.1 out of 10 (keep in mind that most hyped films have very large IMDB rating inflation at release). I saw the film last night in IMAX and enjoyed it quite a bit. My recommendation is that anyone who is a fan of space, science fiction, and movies, should see this film and see it in the big format; but don’t expect to see a film that feels completely without plot holes or twinges of fantasy. This movie is “hard” science fiction in the flavor of 2001: A Space Odyssey. Recall that ASO involves advanced aliens and interstellar worm hole travel. So if you go into Interstellar expecting to not have to suspend your disbelief somewhat, you will be disappointed. I recommend you see it before reading any reviews, but if you must, here is a good one from Tim Reyes of Universe today (who liked it) and an iffy one from Phil Plait (who didn’t like it).

CollectSpace has a nice piece on how the actors in Interstellar consulted with Space Shuttle astronaut Marsha Ivins.

In Orbit

Coming up on Sunday, November 9, the crew of Expedition 41 (which ended with a change of command ceremony today) will return to Earth after their Soyuz undocks from the ISS. Maxim Suraev, Reid Wiseman, and Alex Gerst will depart ISS in the evening, around 7:30 PM Eastern, and land in Kazakhstan only about 3.5 hours later. Reid and Alex have been excellent ambassadors of the ISS on social media with their great posts on Twitter and Vine. You should follow them during their last day (and look at all their old posts)! Expedition 42 should be an exciting one with additional spacewalks planned.

Around the Solar System

A proposed Canadian mission (yes, Canadian!) would endeavor to search directly for life on Mars. The mission would consist of a small lander and just as small a rover. It is unclear what their budget would be, but since they are using an IndieGoGo campaign to raise a modest (in spaceflight terms) $1 million, I would suspect it is what could be called “shoestring”! Nevertheless, The “Northern Light” lander is exciting in its simple goal of scrapping away at the Martian dirt and looking for the color green. The presumption being that photosynthetic organisms may be alive just below the surface. With a launch window in 2018, the idea is ambitions, but exciting. I donated!

NASA held a press conference on November 7 to give an update on the science gained from observations of comet Siding Spring’s encounter with Mars back in October. One of the most interesting observations, to me, were the many kinds of metal detected by observing the chemical composition of Mars’ atmosphere during the encounter; the atmosphere changed as it was pelted with the dust and rock from the comet. Since Siding Spring is from the distant Oort cloud, these measurements are a window into the chemistry of our solar system as far back as the formation of the sun. The observations were done by the fleet of spacecraft humanity now has at Mars (6 in all counting rovers). Unfortunately, no pictures have come out from the surface of Mars (maybe from Curiosity, which can operate at night?) of the meteor storm that was likely visible from surface.

While comet Siding Spring’s encounter with Mars was an anticipated event, the events at comet 67P/Churyumov-Gerasimenko next week will be a highlight of the year, or even the decade, in space… if the Rosetta spacecrafts Philae lander is able to touchdown on the comet. You could read about the mission on their website here, or just watch these two brilliantly produced videos that should get anyone excited about the mission!

Talk about having a good PR department! Philae will be released from Rosetta on Wednesday, November 12, with a touchdown signal confirming landing reaching Earth at about 11 AM Eastern. NASA TV will cover the event.

Out There

Happily, There is some cool astronomy news to cover this week as well!

The ALMA (Atacama Large Millimeter/submillimeter Array) Observatory has taken a stunning image of the planet-forming disc around star HL Tau, which is 450 light years away. I should note that the data was not taken in visible light, but in wavelengths closer to radio. The gaps in the dust around the star are understood to be the orbits of planet-sized bodies forming around the star as we watch. Wow.

Observations from the W.M. Keck Observatory in Hawai’i showed an object known as G2 approach the supermassive black hole at the center of the Milky Way. G2 was thought to be a large glass cloud that would get torn apart by the black hole. But when G2 survived, scientists were forced to revise their hypothesis. The new working theory is that G2 was a binary star system that merged into one massive star due to the gravitational affects of the black hole. I wonder if the system had planets?