Archive for the ‘Friday Links’ Category

Weekly Links

Down to Earth

Veteran astronaut Steve Swanson, who flew on the space shuttle and commanded the ISS last year, is retiring from NASA. According to his Wikipedia page, he has spent an impressive 195 days in space with almost 28 hours of spacewalk time across 5 EVAs. This leaves NASA with 45 active astronauts (which doesn’t count ESA and JAXA astronauts who are qualified to fly to ISS).

Last week an important engine test in the development of the new SLS rocket was conducted at Stennis Space Center. The RS-25 engine was run for almost a full ten minuets. Here’s a video (test starts at 31:15).

In Orbit

Last Monday, August 10th, two Russian Cosmonauts went outside the ISS for a spacewalk. Padalka and Kornienko spent about five and a half hours outside. It was Padalka’s tenth spacewalk, which should put him nicely on this list once it is updated.

Later in the week, on Friday morning, a Russian Progress cargo craft undocked from the aft port of the ISS. That port will be empty until Soyuz 42S does a “relocate” from the Poisk port later this fall. The relocate is needed to free up Poisk for the docking of the next Soyuz. There will be three Soyuz onboard for a direct handover this fall.

Some cool stuff happened inside the ISS this past week as well. The astronauts were able to eat some red romaine lettuce grown on the space station in the “VEGGIE” experiment.

Japanese astronaut Kimiya Yui did some remote robotics experiments.

The launch of the next ISS resupply flight from Japan has been delayed to Monday, due to bad weather.

Also in ISS cargo news, Orbital Sciences announced they will launch not just one but two or more of their Cygnus cargo resupply missions on someone else’s rocket. Orbital is working hard to recertify their Antares rocket with new Russian engines, following the loss of one of their rockets last October. In the meantime, they are buying Atlas V rockets from United Launch Alliance in order to fulfill their NASA contract.

Around the Solar System

Comet 67P/Churyumov-Gerasimenko has reached perihelion (closest point to the sun), which has made the comet rather “active”. Check out these images from Rosetta, in orbit about the comet.

How cool is this? There is evidence of cryovolcanism (ice volcanoes) on Pluto.

Speaking of Pluto, here’s an awesome simulation of the New Horizons flyby in real-time, based on actually imagery from the spacecraft.

If you love the ins and outs of Martian rover exploration, here’s a comprehensive update on what the Curiosity rover has been up to.

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

Claudia Alexander, a successful planetary scientist who has been a project manager for NASA, died Saturday, July 11th.

William Borucki, Principal Investigator of the Kepler Space Telescope, has retired from NASA after over 50 years with the agency.

A few announcements out of NASA’s astronaut office this week: Chris Cassidy is the new chief of the astronaut office, replacing Bob Behnken, who will be busy training as one of the four astronauts chosen for the first commercial crew flights in 2017. The other three are Sunita Williams, Eric Boe, and Doug Hurley. Also, the class of 2013 has officially graduated from ASCANs (astronaut candidates) to astronauts, after finishing what is basically their “basic training”.

Nicole Stott, who recently retired from the astronaut office, is taking up space-themed art as her new mission. Very cool!

In Orbit

Follow-up to the launch news from last week: the Progress resupply vehicle launched on July 3rd made it to ISS on the 5th, keeping the supply chains flowing. The next ISS cargo mission is a Japanese HTV flight in August.

Also in rocket news, there was one orbital launch last week from India, carrying several commercial and technology demonstration satellites. Upcoming launches include an Ariane 5 launch from Kourou and an Atlas V launch from Florida, both on the 15th (I use this Wiki page to track launch schedules).

You’ve got to love a good ISS transit photo. Here’s one of the station passing in front of the moon.

Around the Solar System

It’s time! New Horizons will fly past Pluto on Tuesday! Here is a summary of NASA TV’s coverage of the flyby. The probe gave us a scare last weekend when it went into safe mode briefly, but it is back up and running now and sending home new pictures every day.

One of the latest looks at Pluto

The Dawn spacecraft, in orbit around dwarf planet Ceres, also went into safe mode recently, but was also recovered. Dawn was planning to spiral down to a lower mapping orbit but the issue has delayed that next step in the flight plan.

Mission controllers for the Curiosity rover are dealing with some troubles of their own on Mars. The rovers wheels are continuing to show signs of worsening wheel damage. However, the JPL guys know what they are doing, and they don’t seem too worried yet. Here are some good details from

Weekly Links

Down to Earth

Unfortunately, putting Sally Ride in the US Capitol Statuary Hall is on hold. The issue is that Father Junipero Serra’s statue would be removed and he is expected to be canonized soon. The bill was on the docket in the California state legislature (I linked to the original proposal back in April).

Johann-Dietrich Woerner, as of July 1, is the new the ESA Director General. Previously, he was the head of the German space agency.

My favorite news of the week, other than all the goings-on with the ISS below, is that Houston’s Ellington field has been granted a Launch Site License by the FAA. This means it could be a “spaceport” in the future. It would be pretty cool to see takeoffs and landings of space vehicles from just down the road here!

In Orbit

As of June 29th, Gennady Padalka, current commander of Expedition 44 onboard ISS, became the most-flown astronaut or cosmonaut. The previous record of 803 cumulative days in space, held by Sergei Krikalev ,was broken by Padalka on Tuesday. He will get to almost 900 days before he comes home in September. Krikalev’s flew in space six times, while this is Padalka’s fifth.

Of course, the biggest news of the week was the loss of SpaceX’s Falcon 9 rocket on June 28th. The rocket was launched to send another Dragon capsule to the ISS for their 7th resupply flight (8th if you count the demo mission). The rocket came apart just a couple of minutes into the flight. Here’s the video:

SpaceX will of course have to do an investigation of the failure, and possibly make some design changes, before their next flight. Some important but not critical ISS cargo was lost on the mission, like a new docking adapter and spacesuit parts. There’s a good cargo list on Wikipedia, or check out this post from Parabolic Arc.

Fortunately, given that the ISS has many partners, including four redundant rockets used for resupply, the loss of one SpaceX mission hopefully won’t pose a longterm problem for the program. Just last night, Russia launched a Progress resupply spacecraft, which will dock to ISS tomorrow. The Progress brings all kinds of cargo, including propellant, food, water, and other supplies.

It is interesting to look at some numbers with SpaceX. The launch failure was their first with the Falcon 9 rocket, which had previously had 18 successful flights. Also, before the failure, they had launched five Falcon 9 flights successfully in 2015. Their previous record flight rate was 6 flights in 2014. They could still fly more this year depending on how the failure investigation goes. Parabolic Arc has a nice breakdown of what their upcoming manifest looked like before the failure.

As usual, ISS commander Scott Kelly posted some great photos of Earth from space over the last week:

Around the Solar System

Update from comet 67PP/Churyumov-Gerasimenko: mission controllers are still trying to establish consistent contact with the Philae lander. Meanwhile, the Rosetta orbiter is doing awesome science, like discovering lots of surface ice and sinkholes (I think I’d rather call them “air pockets”).

Check out the obvious red color (probably caused by hydrocarbons, not rust) in recent images of Pluto from New Horizons. Only 2 weeks until rendezvous, and NASA has given the all-clear for the close encounter on the current orbit. No new hazards (moons or rings) have been spotted in Pluto orbit.

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

Down to Earth

The next SpaceX resupply flight to ISS will now be on June 28.

NASA’s “Europa Clipper” mission, which will explore the icy moon of Jupiter, has moved on to development phase.

US Senator from Texas John Cornyn visited mission control last week.

In Orbit

For the rocket junkies, the first launch since June 5th occurred today. The ESA Earth-observing satellite Sentinel-2 launched from French Guiana just a little while ago as I write this. There are no press releases up about the successful launch yet, so here is the Wikipedia page about the mission. Russia is launching a reconnaissance mission on a Soyuz rocket tomorrow, and then there is the SpaceX launch next Monday (see Wikipedia page 2015 in spaceflight for launch schedule).

On Thursday, ISS flight control teams commanded a reboost burn in order to slightly changing the station’s orbit. This is done to make sure that upcoming rendezvous events, like the next Soyuz launch and docking in July, happen when and where they are planned.

Robonaut 2, which lives aboard the ISS, was named the 2014 Government Invention of the Year (US).

New high definition videos of cities, filmed from the ISS, were released by UrtheCast. From 200+ miles up, you can see cars moving on streets and boats on rivers. More than that though, I think I like watching the buildings “move” as the perspective shifts at 17,500 mph.

The Planetary Society’s LightSail solar sailing test re-entered Earth’s atmosphere last Sunday, June 13th. Their next test launch will be late in 2016.

Roscosmos has announced that Sarah Brightman’s empty seat on Soyuz TMA-18M later this year will be filled by a cosmonaut from Kazakhstan.

Scott Kelly is doing a great job still posting a great variety of beautiful images from ISS on Twitter all by himself. Here is a sampling:

Around the Solar System

ESA’s Philae lander, which has been hibernating on comet 67P since November, has woken up! Data was received by the Rosetta orbiter on June 13 and 14, prompting the mission team to start making plans for when they gain a more solid link with the probe.

Scientists have discovered methane in Martian meteorites (pieces of Mars that came to Earth as a meteorite), thus confirming and deepening the mystery around the methane that has been detected at Mars by various spacecraft.

Check out this epic trailer for the upcoming rendezvous of the New Horizons spacecraft at Pluto:

Weekly Links

Down to Earth

Jack King, who provided launch commentary for NASA missions in the 1960s and 1970s, has died at 84.

The United States Senate is busy working on a markup of a budget in the Commerce-Justice-Science (CJS) subcommittee, which includes money for NASA. The current budget, if passed, would include about $18.5 billion for NASA. However, there is some debate about how that money is being spent, including whether enough money is being allocated to the “commercial crew” program for launching astronauts to ISS on spacecraft built by SpaceX and Boeing.

NASA has awarded $30 million to SpaceX for their launch abort test milestone last month.

NASA’s Low Density Supersonic Decelerator (LDSD) had a second drop test over Hawaii this week. The technology will help with Martian EDL for large mass spacecraft. Unfortunately, the parachute failed at high altitudes. More test flights are planned.

In Orbit

It was a very busy week up on the ISS. The most important update is that Expedition 43 ended on Wednesday when Terry Virts handed over command to Gennady Padalka for Expedition 44. Then on Thursday morning the crew of TMA-15M (consisting of Terry Virts, Samantha Cristoforetti, and Anton Shkaplerov) undocked from the ISS and landed safely in Kazakhstan a few hours later.

Earlier in the week, there was some unrelated excitement: first, on Monday, June 8th, the mission control teams in Moscow and Houston had to work together to execute a Pre-determined Debris Avoidance Maneuver (PDAM) to change the ISS orbit to dodge some space junk.

Then, on Tuesday, an unexpected thruster firing from a docked Soyuz vehicle caused ISS to take contingency actions. The Soyuz thruster firing overwhelmed the NASA-owned Control Moment Gyroscopes (CMGs), requiring use of Russian Segment attitude control thrusters to “right the ship” so to speak. Long story short, this is exactly the kind of contingency we plan for and practice hundreds of times in the ADCO group. From what I have heard, the situation was handled very well!

With Expedition 44 underway, there are only 3 astronauts aboard ISS. According to official launch dates from Roscosmos, we won’t see 6 people aboard again until TMA-17M launches in late July.

The LightSail mission has been declared a success, now that there are images of the mylar solar sails deployed! Can’t wait for the next test flight next year.

Around the Solar System

NASA’s Mars Reconnaissance Orbiter has found evidence of impact glass, which may preserve evidence of past life.

Here is some new imagery of Ceres from the Dawn spacecraft, featuring a new high resolution look at the “bright spots”. Ceres is slowly moving to lower and lower mapping orbits.

There is also new imagery of Pluto from New Horizons:

Because its Cool

Check out the first official trailer for the highly anticipated (at least by geeks) movie, The Martian:

Weekly Links

Down to Earth

Astronaut Nicole Stott has retired from NASA. She flew to space on Discovery twice with one mission being a long duration stay at the ISS.

The Canadian Space Agency has committed to their partnership in the ISS through 2024. This means that their two unflown astronauts, Jeremy Hansen and David Saint-Jacques, will get to fly expeditions to the station.

In Orbit

Half of the Expedition 43 crew will finally return to Earth this week aboard their Soyuz TMA-15M spacecraft. This will start Expedition 44 with a 3-man crew of Padalka, Kelly, and Kornienko. NASA TV will cover the undocking from ISS on Thursday morning, June 11. The undocking was delayed last month due to the launch failure of an unmanned Progress spacecraft. Due to the extended mission, Samantha Cristoforetti now holds the record for the longest spaceflight by a woman.

On Friday, June 5, a Russian military satellite launched on a Soyuz 2a.1 rocket. This launch is notable because it is the first flight of a Soyuz rocket since the launch failure of the Progress spacecraft. Flights of unmanned Progress and manned Soyuz spacecraft to ISS both launch on the Soyuz family of rockets.

Speaking of Soyuz, check out this awesome timelapse from the TMA-16M docking to ISS earlier this year.

The Planetary Society has confirmed via telemetry that their LightSail’s solar sail has deployed. No photos or video available yet.

Here’s another cool video from a GoPro mounted to the inside of a Falcon 9 payload fairing after a recent launch. The video starts after the fairing has already separated from the rocket.

Around the Solar System

A new analysis of Hubble Space Telescope data shows that at least two of Pluto’s small moons (Nix and Hyrda) are tumbling unpredictably. Here is a simulation:

Weekly Links

Down to Earth

SpaceX officially received certification from the United States Air Force (USAF) to launch military payloads.

NASA has officially ordered the first official crew rotation flight to ISS under the contracts awarded to Boeing and SpaceX last year. Boeing is expected to make this flight (after a demo flight) in late 2017.

At NASA’s Stennis Space Center, the new RS-25 rocket engine went through a long duration test firing. The RS-25 is a modified space shuttle main engine and will be used on NASA’s new SLS rocket. Here is the full video of the 450 second (7.5 minute) test:

A new venture called MarsPolar hopes to work with SpaceX to mount the first expeditions to Mars. They have a rather shiny website (and an awesome logo). There are a lot of ambitious people promising big dreams these days, which is exciting. But it is hard to take these announcements seriously until we start seeing results. I wish them luck!

In Orbit

The big event on ISS last week was the relocation of the Permanent Multipurpose Module (PMM) from the bottom of ISS to another out of the way port, so that the previous location can be used as a docking port. Here are some images and timelapses of the operation:

The ISS is currently in perpetual twilight during a time of year we call “high beta”. This often means frequent and very bright ISS passes for much of the world. My favorite way to look up whether ISS will be flying over my location is with the website Heavens Above.

In rocket news, only one orbital rocket launched in the past week: an Ariane 5 rocket carrying a DirecTV satellite. The next ISS related launches are expected to be a SpaceX launch late in June and hopefully also the next Progress launch.

Around the solar System

As New Horizons is now less than two months from closest approach to Pluto, we are getting higher resolution images of the dwarf planet every week. Here is the latest batch. Here’s an animation of the imagery (via APOD):

These images are more than just pretty pictures. The New Horizons mission control team is watching Pluto and its moons closely throughout approach to ensure no hazards will destroy the spacecraft at the close encounter. Analysis so far is good.

If you are excited about the Pluto mission, maybe you should download the new “Pluto Safari” iPhone app. I have downloaded it, but not played with it yet.