Archive for the ‘Extrasolar planets’ Category

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

It’s been a busy two weeks since my last news post. Among other things, my wife started her “space mission” (not a real space mission) and I won’t see her again for another 26 days. See my last post before this one for some details on what she is doing. I also travelled to Huntsville, Alabama for a work meeting at Marshall Spaceflight Center this week. Now that I am back home and it is just me and the dog, it’s time to figure out what’s been going on out there in the world of spaceflight during the second half of January.

Down to Earth

Probably the biggest news was the successful reflight of the New Shepard rocket by Blue Origin. The same booster that flew suborbital and returned safely back in November was flown again on a similar mission profile on January 22nd. Here’s their shiny video:

SpaceX had some videos too, but not as shiny as exciting. First was this hover test of the new Dragon capsule:

Second was a parachute test:

In Orbit

There were 3 launches since the SpaceX Faclon 9 launch back on January 17th. First was an Indian PSLV rocket, launched on the 20th with one of their own navigation satellites. Second, a European Ariane 5 rocket launched on the 27nd with an Intelsat communications satellite. Lastly, a Proton rocket launched from Kazakhstan earlier today with an Eutelsat communications satellite.

Meanwhile in the category of fluff pieces, someone at Gizmodo has dubbed the Orbital ATK Cygnus spacecraft the “cutest” cargo hauler to the space station.

Aboard the ISS, the Tims are really getting into the swing of things with their Earth photography. Along with Scott Kelly, the stream of pictures on Twitter from the three of them has been quite good, including some good shots of the snow covered East Coast last weekend. Here are some of my favorites.

Oh and this was a cool thing from Scott Kelly also:

Around the Solar System

Check out this incredible picture of a Martian sand dune from the Curiosity rover:

Namib dune, Mars

Out There

Unfortunately, there may not actually be a planet orbiting in the Alpha Centauri system… or at least, the previous research that hinted at one may be wrong (but who knows, there may be one there anyway).

Fortunately, there is good news to counteract the bad: new mathematical models indicate there may be a new large planet orbiting far beyond Pluto. Astronomers are busy turning on various search campaigns to see if they can find the theoretical world.

2015 Summary Link Dump

The last year was full of spacey goodness. Some things were expected – even long anticipated – like space probes Dawn and New Horizons arriving at their targets. Other things were a complete surprise, like the loss of SpaceX’s seventh commercial flight to ISS and the discovery of flowing water on the surface of Mars. All-in-all, there was a lot to follow and talk about. Thus, I am putting together one or more “year in review” blog posts to give my perspective on what has happened and what’s to come. In the meantime, you can enjoy other people’s thoughts of 2015 in spaceflight through the links I have gathered below. Happy new year!

Wikipedia Stats

As usual, I love to lean on the “year in spaceflight” pages on Wikipedia. The folks that put these together do a thorough job. If we look at the 2015 in spaceflight page, we see that the human race is maintaining our high flight rate, with 82 successful orbital launches out of 87 attempts. These numbers have been steadily growing for years. Here is the last decade’s successful launches numbers, starting with 2005: 52, 62, 63, 66, 73, 70, 78, 72, 77, 88, 82. As I wrote in last week’s Weekly Links post, Russia had the most launches with 26 and their Soyuz rocket is by far the most dominant, at 17 launches. However, their two failures this year make it hard to call Soyuz both the most dominant and most reliable. China launches 19 of their Long March family of rockets with no failures.

Using the “list of spaceflight records” we can see some changes in the list for total time in space. Most notably, Gennady Padalka spent 167 days on ISS during Expedition 43/44, his 5th spaceflight, to put him at the top spot for most spaceflown human ever. He has spent 879 days of his life in space. Also notable is Anton Shkaplerov, who returned to Earth during Expedition 43 and is at the 32 spot, Oleg Kononenko, who returned during Expedition 45 and holds the 13 spot with 533 days, and Yuri Malenchenko and Sergey Volkov who are currently in space and hold the 7 and 31 spots respectively.

The other notable record that was broken this year is “longest single flight by a woman” (which is on the list of spaceflight records page), broken this year by Samantha Cristoforetti, partly because her crew got stuck on ISS a little bit longer after the loss of a Progress resupply flight in May.

Summary Posts

AmericaSpace

AmericaSpace, but on planetary science.

AmericaSpace’s compilation video of launches:

And here’s a series of four year in review posts from NASA Spaceflight:

Part 1

Part 2

Part 3

Part 4

Government Agency PR

NASA’s summary of 2015. With video below.

NASA’s top 15 images of Earth from ISS (if you are a real photography or geography nut, you will want to click “read more” on each picture).

ESA year in pictures.

ESA highlights video.

Top Space Stories of 2015

Space.com’s list.

Phil Plait’s list.

Huffington Post.

US News and World Report.

Other Lists

Best pictures from the Curiosity rover.

Top science stories from NYT.

Top science stories from Science Magazine.

Google’s “a year in search” video.

Ars Technica top science images.

Weekly Links

Down To Earth

Last week the US Senate passed a bill named the “U.S. Commercial Space Launch Competitiveness Act”.  One of the most talked about provisions in the bill allows private citizens or companies to lay claim to asteroid resources.

Virgin Galactic announced that they have hired their first female test pilot: Kelly Latimer, who has flown for the USAF and NASA.

An object known as WT1190F re-entered the Earth’s atmosphere and broke up over the Indian Ocean on November 13th. The object was thought to be a rocket stage from an Apollo mission. Astronomers onboard an airplane caught some pictures of the event.

This is pretty cool:

In Orbit

In the past week, only one rocket blasted into orbit: an ESA Ariane 5 rocket with communications satellites for India and Saudi Arabia. The next launch in support of the ISS is still a few weeks away: an Atlas V carrying a Cygnus freighter for Orbital ATK.

Around the Solar System

I love this animated mission update on the Rosetta/Philae mission from ESA.

New analysis indicates that Mars’ small moon Phobos may only have millions of years to live. Due to its low orbit, it is getting torn apart by tidal forces, which cause the strange “grooves” on its surface.

New images of large mountains on Pluto may be evidence for “ice volcanoes” (or “cryovolcanoes”).

Check out this animation which shows the different spin rates of Pluto’s 5 moons.

Astronomers have discovered a new distant solar system object which may be the most distant rocky body known. V774104 is about half the size of Pluto and orbits several times further away.

Out There

Newly discovered planet , GJ 1132b, is the closest planet of about Earth’s size yet discovered, at only 39 light years distant. Unfortunately, the planet is tidally locked and very close to its star, making it not a fun place.

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

Astronauts Stephen Frick and Michael Foreman announced their retirement from NASA this week. If you are interested, NASA maintains an updated list of active astronauts here, which can be easily copied into a spreadsheet. With the addition of the class of 2013 as active astronauts, the number is currently at 46 after recent retirements. Interestingly, the oldest class still represented is the class of 1996, of which Scott Kelly (currently in space) and Peggy Whitson and Jeff Williams (upcoming ISS commanders), are all members.

The National Transportation Safety Board (NTSB) released their findings regarding the accident last fall that destroyed the Virgin Galactic SpaceShipTwo spacecraft and one of its pilots. Their findings are summarized nicely at Parabolic Arc or you can read the longer executive summary of the report. In short, it was indeed the “early unlocking” of the spaceplanes “feather system” that doomed the craft. the NTSB’s analysis found that the risk of human error was not properly taken into account during development.

Rumors out of Russia is that a new “Manned Spaceflight Center”, analogous to NASA’s Johnson Space Center, is in the planning stages, and would be headed by former cosmonaut Sergei Krikalev.

In Orbit

Last weekend, on Saturday, July 25th, ISS flight controllers had to command a debris avoidance maneuver to dodge orbital debris that was headed to the ISS.

Check out this absolutely awesome virtual ISS tour published by ESA and narrated by Samantha Cristoforetti. Some people are calling it “Google Street View on ISS” but it’s really just an old school click-through VR tour. It’s very well done!

ESA is exposing the bacteria found in kombucha to space on the ISS to see how it fares in the harsh environment.

Another cool experiment I learned about while at an ISS payloads meeting in Huntsville, Alabama last week is a small genetic sequencer called minION, which will launch next year.

Peggy Whitson, who will command ISS Expedition 51 in 2017, has joined Twitter!

Speaking of Twitter, here are some good posts from the three tweeters in space right now:

Around the Solar System

The Cassini spacecraft has discovered strange red stripes or streaks on the surface of Saturn’s moon, Tethys. Check it out.

The Curiosity rover is busy investigating some interesting new rocks it has found on the slopes of Mount Sharp on Mars.

Out There

A combination of observations from the HARPS-North ground telescope and NASA’s Spitzer Space Telescope have confirmed the existence of a rocky exoplanet just about 21 light-years away.

While studying another star that is about 20 light-years away, NASA astronomers from JPL have discovered aurora in the atmosphere of a brown dwarf star.

Weekly Links

Down To Earth

Last Monday, SpaceX announced preliminary findings related to the loss of a Falcon 9 rocket and its Dragon cargo mission last month. Here’s the companies official statement on their investigation so far. They have found that a structural support (or “strut”) holding up a pressurant tank in the second stage failed. Elon Musk hopes a delay of only a few months to their manifest.

Tony Antonelli, who piloted two space shuttle missions, has retired from the astronaut office.

The Smithsonian Institution has started a new Kickstarter campaign called “Reboot the Suit” to raise money to restore Neil Armstrong’s moonsuit. The restoration is planned to be completed in time for a new exhibit for the 50th anniversary of Apollo 11 in 2019. I pledged!

In Orbit

Three launches from the Earth’s three spacefaring nation’s this past week: first, a Russian Soyuz rocket launched from Kazakhstan on July 22nd, followed a few hours later by a successful docking to ISS. The crew is now back up to full strength of 6, with the addition of Oleg Kononenko, Kimiya Yui, and Kjell Lindgren. Lindgren and Yui are on Twitter, so you should follow my “people in space” Twitter list.

Second, a Delta IV rocket launched from Florida on July 23rd. The mission delivered a new military communications satellite to orbit.

China also had a successful orbital launch last week. A Long March 3B delivered two navigation satellites to orbit on July 25th.

Around the Solar System

New pictures from the New Horizons’ Pluto flyby! Check out the new views of small moons Nix and Hydra.

Also, check out this view of the dark side of Pluto, with the sun lighting up its thin nitrogen atmosphere!

via Universe Today

Not to mention they discovered nitrogen glaciers!

via Universe Today

Closer to home, at Ceres, the Dawn spacecraft has discovered evidence of a “haze” in Occator crater. This is the large crater with several “bright spots” in its center.

JAXA is accepting applications to choose a name for asteroid 1999 JU3 which will be visited by their Hayabusa-2 spacecraft.

Out There

NASA announced the discovery of Kepler-452b, a small planet around a Sun-like star about 1,400 light years distant. This is the most similar planet in size and circumstance to Earth that we have yet found, but it still has 1.6 times Earth’s diameter (mass, and thus surface gravity, unknown). However, the fact that it is so small and in the habitable zone, makes it an awesome discovery.

Weekly Links

Down to Earth

A new exhibit called ‘Forever Remembered’ at NASA’s Kennedy Space Center has opened, featuring artifacts from the fateful STS-51L and STS-107 missions.

NASA is offering to lease parts of the Vehicle Assembly Building (VAB) and Mobile Launch Platforms (MLP) at the Kennedy Space Center to commercial users. I guess NASA doesn’t need both high bays all the time due to the low launch rate expected for the new SLS rocket.

Famous composer James Horner died in a plane crash this week. Here are some excerpts from my favorite work of his, the Apollo 13 soundtrack:

In Orbit

In orbital launch news, the Russian military launch I wrote about last week was successful on June 23rd. The rocket was a Soyuz-2.1b, which has a different third stage than the Soyuz rockets used to launch missions to ISS. Here is a good discussion of the Soyuz rocket family from Russian Space Web.

There was also a Chinese Earth-observing satellite launch on June 26 (was early in the day, so June 25 in the US).

And of course, another much-anticipated SpaceX Falcon 9 launch is still scheduled for tomorrow. The pre-launch static fire test was successful on Friday, June 26, so they are ready for launch on June 27 at around 10:20 AM Eastern.

This Falcon 9 launch is supposed to have another barge landing attempt. SpaceX recently launched this new tracking cam footage of the almost-made-it attempt in April. This should get you excited for tomorrow!

As always, here are some more great photos from ISS, posted by @StationCDRKelly

Around the Solar System

The European Space Agency has extended the Rosetta mission, in orbit of comet 67P, until late 2016. Good thing too, because Rosetta keeps finding new things about comet 67P, like the recent announcement that they have found exposed water ice on the surface.

This song about the New Horizons mission to Pluto is rather fun. If you don’t like sentimentality or kitsch, you might want to skip it.

Out There

Some cool astronomy news worth sharing this week. First, the V404 Cygni system, which is a black hole orbited by a companion star, has recently become very active and is flaring into the brightest X-ray object in the sky (so you can’t see it).

Second, astronomers have discovered that exoplanet GJ436b (which is about the size of Neptune) has a giant cloud of hydrogen following it in its orbit, like a comet tail.

Weekly Links

Sorry for the delayed post this week. It has been a busy month, as I prepare for my trip to the 31st Space Symposium in just over a week. Plus, I recently got a new Amazon Kindle and have been diving into the world of spaceflight historical fiction (I know, I was surprised too!). I recently finished reading both Zero Phase and Public Loneliness by Gerald Brennan. Check them out!

The most exciting space news since my last post on March 20th of course was the launch of Soyuz TMA-16M last Friday. Here’s a video of the launch. More on what’s been going on ISS under “In Orbit”, below.

Down to Earth

United Space Alliance is having a public contest to vote on the name of their new rocket, which they hope will replace their medium lift Atlas V and Delta IV rockets by the 2020s.

Speaking of naming contests, the SETI Institute has launched the “Our Pluto” campaign for the public to help suggest names for features on Pluto, which will soon be discovered by the New Horizons spacecraft. From what I can tell, NASA and the IAU are onboard, so the names may actually become official.

Ellington Airport, just a few miles from the Johnson Space Center, has a new agreement with Sierra Nevada Corporation to land unmanned Dream Chaser spaceplanes here in Houston. If Sierra Nevada is awarded the CRS-2 contract, this could provide a nice logistical advantage for the ISS program.

The next SpaceX Falcon 9 launch, which is another cargo resupply flight to ISS, has been delayed to April 13 (a 3-day slip).

NASA has selected “Option B” for the Asteroid Redirect Mission (ARM). The mission will involve an unmanned robotic mission retrieving a small boulder from the surface of a Near Earth Object (NEO) which will be visited later by astronauts in lunar orbit.

In Orbit

Lots of rocket launches in late March, in addition to the Soyuz launch that sent Scott Kelly, Mikhail Kornienko, and Gennady Padalka to ISS. The list of launches includes: an Atlas V with a new GPS satellite, A Japanese reconnaissance satellite on an H-II rocket, two European Galileo navigation satellites on a Soyuz rocket, and at least one other Indian, Russian, and Chinese rocket. The Chinese launch reportedly included a test flight of a new mini-space plane. The number of rocket launches this year now stands at 21 to orbit, with no failures.

As for that Soyuz flight to the ISS, it was a picture perfect launch, rendezvous, and docking, with Kelly and crewmates arriving at ISS only 6 hours after departing Kazakhstan. The number of humans off-world is now back up to 6, and the number of people tweeting from space is now at 4, with Kelly joining Cristoforetti, Virts, and Shkaplerov. Here’s a sample of their recent posts:

Around the Solar System

The annual Lunar and Planetary Science conference took place in March, which usually means interesting news from spacecraft exploring the solar system. Some of the best stories from this year’s LPSC are:

Out There

I was excited to learn that there are still astronomers diligently watching the Alpha Centauri system, with HST even, to try to confirm the potential worlds detected orbiting there several years ago. The latest data indicates that perhaps there are two worlds, not just one, orbiting Alpha Centauri B. Unfortunately, the data is not strong enough to say they are there for sure… yet.