Archive for the ‘Rosetta’ Category
Part I – Exploration
Spaceflight, as a many-hundred billion-dollar sector, is a broad and complex industry. Even if we focus in on “exploration” – which is the primary focus of this blog – so that we can ignore military and commercial uses of Earth orbit, we are still left with a global list of activities, studies, missions, and companies. This means there is a lot of stuff going on. 2016 was a busy year with many exciting missions from several different countries. This diversity is great, but makes it hard to boil down the events of last year into a coherent story. Even within NASA, we have the ISS program, with its own highs and lows, and the totally separate and just as successful planetary science portfolio of missions. Those missions keep on going, regardless of whether the most recent cargo delivery has made it to our astronauts in orbit, for instance. Meanwhile, in China, the CNSA is continuing to grow as a nascent space power with new rockets, new launch sites, and a brand new space station. Then there’s Russia, Japan, Europe, India, and more. If any theme can be found at all in the events of last year it is that space exploration continues to be a diverse and global endeavor. Putting any nationalism aside, this should give us hope that despite the ups and downs of the economies or space budgets in any given country, that exciting times lie ahead.
It’s hard to start a summary of 2016 in spaceflight without acknowledging that the United States had a major election, with a new President to be inaugurated this week. Any presidential transition leads to uncertainty in the future of government programs, including NASA. Often election years leave the federal government in a continuing resolution. A continuing resolution means that Congress has yet to pass a budget for the year. This leaves NASA and other agencies working under last year’s budget levels, with no increase for inflation or otherwise. The election was a big story for the country in a lot of ways, but NASA and its programs are most likely to feel the effects in 2017, as it tries to continue with business as usual as it waits for new priorities and a new budget.
While 2017 may bring about change (or not), 2016 was another good year for NASA’s flagship space exploration missions. NASA had no major failures last year, just the usual hiccups and challenges (space is hard, after all) and even launched a new planetary exploration mission: OSIRIS-REX, which is on its way to visit an asteroid in 2023. In fact, last year showed that NASA is still a clear leader in planetary exploration, with probes in action all over the solar system. The NASA fleet at Mars remains strong, with two rovers on the surface and two probes in orbit. New Horizons received a mission extension and is on its way to a Kuiper Belt Object rendezvous in a few years. Meanwhile, the probe Juno made orbit at Jupiter and started scientific observations. Unfortunately, Juno has some sticky propellant valves and missed some of its early science orbits when it entered “safe mode.” Fortunately, the probe was brought out of safe mode and completed a Jupiter flyby in December. Most of the probe’s 20-month mission is ahead. Hopefully Juno’s worst days are in the past! Out at Saturn, NASA is still operating the Cassini probe, which has been in orbit since 2004. Sadly, 2017 will see the end of Cassini, as it destroys itself in dramatic fashion, with a dive into Saturn’s atmosphere.
Two other planetary missions of note from other countries had some action last year. ExoMars (a joint mission between ESA and Russia) launched and made it to Mars. However, its companion lander, Schiaparelli, was unable to make it safely to the Martian surface and crash-landed. Thus, NASA remains the sole space agency to have safely brought a spacecraft to the surface of Mars… having done so seven times. Of course, we shouldn’t forget that the Soviet Union is the only country to have ever landed a probe on Venus! A feat which has not been repeated since 1982, and does not appear to be repeated any time soon, as most space agencies focus on asteroids and the outer solar system in their planetary science missions. Venus is not forgotten though, as Japan was able to begin doing science with their Akatsuki orbiter at Venus last year.
Following the theme of “space is hard,” Japan had a pretty devastating failure when their new X-ray telescope Astro-H, or Hitomi, went out of contact after reaching orbit. Fortunately, Japan already has a strong space program and seems mature and professional enough to learn from their mistakes – they released a failure report very quickly after the accident. They currently have an asteroid sample return mission, Hayabusa 2, en route to its target in 2018, which we should all be very excited about. NASA has a strong relationship with JAXA, and will be curating the Hayabusa samples here at the Johnson Space Center when they return.
In human space exploration, the story continues to be the International Space Station. The ISS had an exciting year, partly because NASA and ESA continue to send charismatic astronauts who manage to make the mission feel very personal to all of us following back on Earth. It was a great year for following astronauts on Twitter, including Jeff Williams, Kate Rubins, Tim Kopra, Tim Peake, Scott Kelly, Shane Kimbrough, Thomas Pesquet, and Peggy Whitson. It’s hard to see how this trend will do anything but accelerate, as it’s a cheap and easy way for NASA to connect with the American public and share its mission. Scott Kelly of course returned from space early in the year and retired from NASA on a high note. Since the “year in space” was such a success, both operationally and as a public affairs bonanza, it seems likely NASA will want to try more longer duration expeditions in the future.
On the more nuts and bolts side of things for the ISS, all major mission events went well last year, with both the arrival and installation of the new IDA2 docking adapter and the Bigelow Expandable Activity Module (BEAM). BEAM is an exciting demonstration of where human habitability in Earth orbit may be able to go in the future with inflatable structures. It is exciting to think that the technology may spinoff a private-public partnership with either or both of the companies Bigelow and Axiom to expand the ISS with new large inflatable modules in the future.
The ISS did face some minor setbacks of its own, although not quite as dramatic as in more recent years. Two rocket failures impacted ISS logistics: the SpaceX explosion on the pad in Florida in September and the loss of a Russian Progress resupply mission in December. The good news for NASA was that the SpaceX failure was not an ISS mission, but it meant a delay to the next planned resupply flight of a Dragon capsule, now scheduled for February. ISS is well stocked on supplies thanks to a Japanese resupply mission that also flew in December and the Orbital ATK Antares rocket returning to flight status in October. Even with both Japanese and American rockets able to keep ISS supplied, having the Russian Soyuz rocket family grounded must always make mission managers uneasy. After all, it is the same rocket family that failed in December that also delivers crews to the station. We are not in uncharted territory, as expedition schedules were in limbo after similar accidents in 2011 and 2015. But the ups and downs of the launch vehicle sector are a continual challenge not only for NASA’s ISS program but for dreamers who envision hundreds of people at a time into deep space for colonization. ISS truly is the foothold where we must learn first, and is a great proving ground for those dreamers.
The ISS accounts for over 2,000 person days of space experience a year. The day-in and day-out slog of operating an aging orbital laboratory and learning to live there is slowly but surely preparing us for what comes next. This experience is shared by a partnership of 15 nations (USA, Canada, Russia, Japan, and 11 countries from ESA). However, the rising nation of China finds itself on the outside. Just like in many other sectors, China is finding its own way in space. Last year was a good one for the China National Space Agency (CNSA). Not only did they launch a brand new space station, Tiangong-2 and send a crew of 2 on a 30-day mission to the outpost, they also debuted a brand new Long March 5 heavy lift launcher while matching the US in successful launches on the year – twenty-two. A new medium-lift rocket, Long March 7, also debuted from a new coastal spaceport on Hainan Island, which should give CNSA more flexibility. CNSA’s recent white paper publically published outlining their five-year plan shows ambition but also should be a douse of cold water on people expecting a space race between China and the USA. China certainly has a lot to be proud of as only the third independent nation to place humans in space. But they have a long way to go to put themselves on par with the modern space programs in America and elsewhere. I look forward to their planned lunar sample return mission in 2017, which will give them a lot of “street cred” if they pull it off!
Obviously these are not the only happenings in space exploration and related science areas. I could go on about the exciting developments in exoplanet astronomy, a field that may provide worlds to explore decades or centuries from now, for example. We continue to live in a golden age of space exploration that started with the Galileo probe to Jupiter in the early 90s. For me, 2016 was a testament to the true diversity of the state of space exploration and should serve as a reminder to avoid tunnel vision. There are many facets to how we explore. It’s not just about shiny new rockets and capsules and astronauts, but its also not just about gathering science through a space telescope or a distant robotic probe. All these pieces fit together to move forward the state of our knowledge about the universe together. One of my favorite examples of this from last year was astronaut Kate Rubins’ work on gene sequencing while aboard the ISS. Talk about two sectors that do not traditionally intersect, at least not in the minds of the general public. Diversity – both in the space agencies doing the exploration as well as the type of exploration – will keep the dream alive. I can’t wait to see what we do on ISS this year but I also look forward to news out of China and India as they learn what it takes to fly in space.
The biggest problem with keeping up this steady cadence of exploration is how all these space agencies will pay for it, as the world faces challenging fiscal and security issues. Space is exciting – and important – but it is far from the first priority when it comes to setting budgets in most parts of the world. Fortunately, we have disruptive new players in the launch sector that can help us keep costs down. More on that in my next post.
Down to Earth
Jack Garman, who worked a support console for Apollo guidance and navigation, passed away on September 20th, at 72 years old. Garman is best known as being instrumental in the calls to proceed with landing on Apollo 11 when some guidance computer program alarms showed up at just 3,000 feet above the surface. Here’s the raw audio from that part of the landing which is always worth listening to again. Great example of flight control in action.
Neil Degrasse Tyson’s podcast StarTalk had a special episode hosted by astronaut Mike Massimino with guest interviewees, flight directors Royce Renfrew and Emily Nelson. Check it out here!
Musician and singer Grace Potter collaborated with NASA on a music video for her song Look What We’ve Become. It was filmed completely at NASA’s Johnson Space Center! Check it out below.
One of the biggest national stories of the last week was Hurricane Matthew, which came close to dolling out a devastating blow to the East coast of Florida. Fortunately, the most dangerous winds stayed offshore as it passed the Kennedy Space Center, resulting in some damage but nothing too serious.
In the battle of the New Space giants, there were two big stories in recent weeks. First, SpaceX CEO Elon Musk had his much anticipated presentation at the International Astronautical Congress (IAC) in Mexico. the speech presented a high level framework of his plans to visit Mars. Most of the details were focused on the rocket design and less on how humans would survive and thrive on Mars. Below is the full length video, but Ars Technica had a good analysis if you don’t want to watch all of it. Another good take on it from Phil Plait here.
If you are interested in just the 4-minute animation from SpaceX showing their imagined Mars mission architecture, jump to the second video below.
The other big story was Blue Origin’s successful in-flight abort test of their New Shepard rocket (personally, I am not sure if they have a separate name for the capsule or if New Shepard refers to the whole system. It was a pretty exciting launch and test. Jump to 51 minutes in the webcast replay below to watch!
Lots of good news regarding the ISS flight manifest. The next Cygnus cargo freighter, launching from Virginia for the first time in 2 years on Orbital ATK’s redesigned Antares rocket, should fly next Thursday, the 13th.
The following week, the next crew should launch on their repaired Soyuz craft. That launch is scheduled for Wednesday, the 19th.
There were two rocket launches since my last post. First, an Indian GSLV rocket launched a slew of satellites into orbit, including some from Algeria, USA, Canada, and India. Second, an ESA Ariane 5 rocket launched two communications satellites to a geosynchronous orbit on the 5th.
Around the Solar System
Check out this “video” (really an animated gif made from stills) of the Curiosity rover drilling on Mars! The rover has just officially entered its next two-year mission extension.
— Jason Major (@JPMajor) September 19, 2016
NASA announced new findings from the Hubble Space Telescope that reinforce the conclusion that not only does Europa have a subsurface ocean of liquid water, but that the water regularly exits the moon in powerful plumes (which could be theoretically sampled by a visiting probe).
In even more exciting planetary science news, NASA announced new analysis of data from the MESSENGER spacecraft (which finished its Mercury orbital mission last year). By analyzing imagery from the last part of MESSENGER’s mission, when it was at a lower altitude, scientists have concluded that the surface shows signs of recent contraction, meaning that Mercury is tectonically active.
ESA’s Rosetta mission ended on September 30th with a controlled descent into comet 67P/Churyumov/Gerasimenko.
Down to Earth
Easily the top story of the past couple of weeks (sorry, OSIRIS-REx) was the loss of a Falcon 9 rocket with its commercial satellite payload on the pad during a pre-launch static fire test (video below). The pad, Space Launch Complex 40 (SLC-40) was damaged in the fire (pictures here) and SpaceX is currently still investigating the cause. It is impossible to speculate on what kind of setback this will cause in their launch manifest until some notion of the cause is determined. SpaceX still has one operational launch pad in California.
Just 3 days before the SpaceX pad fire, the Chinese space program suffered a failure in what is apparently the first launch failure of the year. The Long March 4C rocket was expected to put a reconnaissance satellite in orbit.
As for positive news, NASA’s troubled Mars lander InSight has been greenlit for a launch sometime in 2018.
Another goodie was Virgin Galactic conducting the first test flight of the new SpaceShipTwo (although just a captive carry flight).
Check out this blog post from one of the recent crew members of NASA’s asteroid mission simulation, HERA. Tess was on the crew of HERA 11.
The most important thing to come “down to Earth” last week was the crew of Expedition 48. Jeff Williams, Oleg Skripochka, and Aleksey Ovchinin landed in Kazakhstan last Wednesday after a flawless undocking and re-entry.
Before Expedition 48 ended, Jeff Williams and Kate Rubins conducted their second spacewalk in as many weeks, repairing and upgrading a slew of items outside the ISS.
Fortunately, there were at least two successful launches to offset the failures in early September. First, an Indian GSLV Mark II rocket lofted a weather satellite. Secondly, a ULA Atlas V rocket launched NASA’s OSIRIS-REx probe on its 7-year journey to visit an asteroid and return to Earth with samples.
Around the Solar System
On Mars, the Curiosity rover is currently trundling through some incredible landscapes, snapping photos of beautiful buttes and rock layers.
Juno continues to return data from Jupiter, including a stunning image of the north pole.
And last but not least, one of the coolest stories of the last week, the European Space Agency finally located the lost comet lander, Philae, just weeks before the orbiter Rosetta is due to end its own mission. Check out the pictures!
Down to Earth
Check out this new video posted by SpaceX from their recent rocket landing:
It's a bird, it's a plane… https://t.co/hdpkXTvLm3
— SpaceX (@SpaceX) June 3, 2016
The iconic Arecibo Observatory may be shut down.
A large meteor burned up spectacularly near Phoenix, Arizona last week.
The only launch of the past week was a Russian Rokot booster carrying a remote-sensing satellite.
Astronauts on the International Space Station will enter their new expandable module, BEAM, for the first time today.
Part of a Russian rocket, still in space after a launch many years ago, exploded in orbit last week.
Some exciting upcoming launches include a Delta IV Heavy from Florida on the 9th and another Falcon 9 on the 14th (as always, check out the “2016 in spaceflight” Wikipedia page for a good summary).
Around the Solar System
ESA’s Rosetta probe has confirmed the existence of the amino acid glycine in the coma of comet 67P/Churyumov-Gerasimenko.
Down to Earth
The US Senate has started putting together their version of the 2017 budget, including appropriations for NASA.
The satellite internet startup OneWeb has announced they will build a factory in Florida.
China’s unmanned research capsule, SJ-10, successfully ended last week when it landed in Mongolia under parachute.
SpaceX has moved their latest recovered Falcon 9 booster back to their hangar in Florida. Follow the link for some pictures and video.
The European Space Agency has been trying to launch an Earth-observing satellite, Sentinel-1B, since Friday. They have been delayed twice by weather but they hope for a successful launch later today at just after 5 PM Eastern.
ISS astronaut Tim Peake virtually ran the London marathon this morning.
— ESA Operations (@esaoperations) April 24, 2016
Around the Solar System
The New Horizons team has officially submitted their Kuiper Belt Extended Mission (KEM) to have the probe flyby the distant object MU69.
Beautiful pictures from Dawn’s low-altitude “mapping orbit” at Ceres give is a good idea of what’s really going on in those “bright spots” on the asteroid.
And here’s an amazing shadowless view of comet 67P/Churyumov-Gerasimenko.
Down To Earth
Two space shuttle astronauts, Brian Duffy and Scott Parazynski, were recently inducted into the astronaut hall of fame.
Apollo astronaut and moonwalker, Edgar Mitchell, died at the age of 85.
Former President George H.W. Bush (Bush 41) visited Johnson Space Center and talked to the ISS astronauts from the Mission Control Center.
All of the segments of the primary mirror to the James Webb Space Telescope (JWST) have been assembled!
The Laser Interferometer Gravity-Wave Observatory (LIGO) has detected “gravitational waves”, which is what it was designed to do. This is a basically a new way to see the universe – like the first time an X-Ray observatory was put into space and returned data. Not only that, it validates parts of Einstein’s theories. Here are some brief articles from Phil Plait and Sean Carroll, who explain it well.
Check out this amazing zero-gravity music video by Ok Go, which doesn’t use any digital effects. Wow!
Curators at the Smithsonian recently did a 3D scan of the inside of the Apollo 11 Command Module, Columbia, and found previously unknown handwritten notes on the walls.
Astronaut Kevin Ford has retired from NASA.
The new SpaceX “transporter erector” at pad 39A in Florida is pretty cool looking.
A number of rocket launches since my last post in late January: a Chinese rocket launched one of their navigation satellites (Beidou), a ULA Atlas V launched a GPS satellite, a Russian Soyuz rocket launched one of their navigation satellites (GLONASS), a ULA Delta IV launched a secret USA reconnaissance office payload, and lastly North Korea launched something.
This brings the worldwide launch cadence for the year up to 10 so far, or almost 2 per week. We are still waiting for the first SpaceX Falcon 9 launch of the year, which should be before March.
Veteran cosmonauts Sergey Volkov and Yuri Malenchenko conducted a successful spacewalk on the Russian Segment of the ISS.
Around the Solar System
The European Space Agency has announced that they are no longer attempting to send commands to the lost Philae lander, which has not transmitted from the surface of comet 67P/Churyumov–Gerasimenko in months.
China has released some new photos of the moon from it’s Yutu rover mission (the rover died some time ago).
Down To Earth
This week NASA finally announced the winners of the next Commercial Resupply Services contract, or CRS-2. This is the contract currently held by SpaceX and Orbital ATK to delivery cargo to the ISS. The contract was rebid for flights starting in the 2019 timeframe. NASA made the exciting decision to give the contract to all three remaining companies: SpaceX, Orbital ATK, and Sierra Nevada.
This was a good week for SpaceX, beyond just the cargo award. To get people excited, they released this video recap of their successful launch and landing last month:
Then they performed a “static fire” test of the recovered booster. The results were reportedly good with some anomalies.
Maybe some debris ingestion. Engine data looks ok. Will borescope tonight. This is one of the outer engines.
— Elon Musk (@elonmusk) January 16, 2016
And thirdly, SpaceX launched the Jason-3 satellite for NOAA on Sunday from their California launch site. The satellite reached orbit successfully, but the first stage recovery attempt – which was on a barge instead of a landing pad in this case – was close but unsuccessful. Here’s some information from NASA about the Jason-3 mission if you are interested. If you want even more, AmericaSpace has an interview with the Project Scientist.
Well, at least the pieces were bigger this time! Won't be last RUD, but am optimistic about upcoming ship landing. pic.twitter.com/w007TccANJ
— Elon Musk (@elonmusk) January 17, 2016
And here’s some awesome video of the touchdown (I’ll add it as an embedded Vine below whenever it is posted there).
China also had a successful orbital launch today with a telecommunications satellite for Belarus. The SpaceX and Chinese launches are the first two flights of the new year.
Meanwhile, on the space station, the “Tims,” astronauts Tim Kopra and Tim Peake, went out for a spacewalk on Friday to repair one of the ISS power channels that malfunctions last November (while I was on shift, in fact). The EVA was successful in its main objective but had to be terminated early due to unexpected water accumulating in Tim Kopra’s helmet.
Around the Solar System
The European Space Agency attempted to contact the Philae lander, on comet 67P-C/G, but it is still nonresponsive. As the comet gets farther from the sun in its orbit and the light levels decrease, the chance of the little probe waking up are quickly diminishing.
— ESA Rosetta Mission (@ESA_Rosetta) January 8, 2016
The JUNO spacecraft, on its way to Jupiter, has broken the “distance record” for a solar powered spacecraft, according to Spaceflight Insider.
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!
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.
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:
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).
Top Space Stories of 2015
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:
Slow-mo footage of our pad abort test in May, a critical test in preparation for our first human missions. pic.twitter.com/vvZTlf5sH1
— SpaceX (@SpaceX) October 30, 2015
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.
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.
Down to Earth
At the “grand opening” of Boeing’s new spacecraft processing facility, the new name for their space capsule was announced. Boeing CST-100 is now called Starliner. In addition, the former Orbiter Processing Facility (OPF) at Kennedy Space Center will now be known as the Commercial Crew and Cargo Processing Facility (C3PF). Check out the new mural on the side of the building!
A couple of “design nerds” are running a Kickstarter campaign to reproduce the “NASA design manual” from 1976 which introduced the NASA worm logo, which the agency used until 1992. Given that I was born in 1987, I actually have such mixed memories of NASA imagery from my childhood that I didn’t realize that ” themeatball” (currently used logo) and “the worm” were mutually exclusive, and never used by NASA at the same time.
The big news in orbit this past week was the launch and docking of Soyuz 44, or TMA-18M, with crew of Sergey Volkov, Andreas Mogensen, and Aydyn Aimbetov. They docked this past Friday, September 4th. There will be 9 people on the ISS until Soyuz 42 (TMA-16M) undocks on September 11th. Mogensen and Aimbetov will be flying home with Gennady Padalka on the 11th.
In preparation for the crew rotation next week, Gennady Padalka handed command of the ISS over to Scott Kelly, who will command two consecutive missions, Expedition 45 and 46, until he ends his one-year mission next year.
In other launch news, a Navy communications satellite launched from Florida on an Atlas V rocket last Wednesday (actually, only a few hours after the Soyuz launch!).
Unfortunately, the big radar on NASA’s Soil Moisture Active Passive (SMAP) spacecraft (launched on a Delta II rocket earlier this year) has failed. The probe has one other science instrument so it will continue operations.
An old Soviet satellite called Kosmos 1315 re-entered the atmosphere over Hawaii on August 31st, which many locals caught on film.
Around the Solar System
The Curiosity rover spotted some really interesting wind-eroded rock formations on Mars.
I know I shared one of these before but this new Pluto flyby animation is even better than the last one.