Archive for the ‘Friday Links’ Category

Weekly Links

Down to Earth

Check out this new video of Blue Origin’s orbital rocket concept, New Glenn.

If you like planetary science and are excited by the idea of future missions to Europa, you should read this detailed post at Ars Technica about how Congressman John Culbertson is working to make it happen.

SpaceX successfully conducted the static fire test for their next rocket launch from Pad 39A at the Kennedy Space Center. A Falcon 9 carrying a commercial satellite will liftoff very early Tuesday morning, March 14th.

In Orbit

Only one orbital rocket launch since my last post. A European Space Agency Vega rocket launched the Earth-observing Sentinel-2B satellite from French Guiana on March 7th.

As usual, there are lots of good pictures from the crew on the ISS to share. Here’s a selection.

https://twitter.com/Thom_astro/status/839769655971627008

https://twitter.com/Thom_astro/status/839831200780988418

Around the Solar System

New data from the Dawn probe in orbit of Ceres indicates that the “bright spots” are much younger than the craters they inhabit. This is evidence of relatively recent cryovulcanism.

Check out these incredible images of Saturn’s tiny moon Pan. It has a unique shape no one has ever seen before.

This is a pretty cool series of images showing a global dust storm moving across Mars.

Weekly Links

Down to Earth

NASA has finalized an agreement with Boeing to use the extra seats on two Soyuz flights to the ISS over the next year and a half for additional US astronauts. There is some contractual stuff going on here, but basically NASA is going to use seats that Roscosmos was going to leave empty to save money.

Virgin Galactic has spun off its LauncherOne program into a new company called Virgin Orbit.

Jeff Bezos’ company Blue Origin is now getting in on the new moon missions also. According to the Washington Post (owned by Bezos), Blue Origin has floated a proposal to the new US presidential administration that they want to help support NASA missions to the moon with their Blue Moon concept.

PBS News Hour did a brief segment on all of this new interest in lunar missions:

In Orbit

Two rocket launches since my last post:

It’s hard to keep up with the current ISS crew, the members of Expedition 50, as they tweet like its all they do in what little spare time they have. Here’s a selection of the best pictures from just the last week.

 

Around the Solar System

NASA’s MAVEN probe in orbit of Mars executed an avoidance maneuver of about 0.4 m/s to avoid colliding with the moon Phobos. That velocity change is small, about on the order of the debris avoidance maneuvers we do with the ISS.

Check out these dust devils spotted by Curiosity rover on Mars.

Did you know that Saturn’s moon Enceladus is half cratered and half smooth? Check out this recent image from NASA’s Cassini probe to see for yourself.

Weekly Links

Down to Earth

During a media conference call on Friday, NASA managers provided some details about the potential plan to put astronauts onto the first test flight of the new SLS rockets. In particular, they stated that they would look at putting a crew of 2 onto the EM-1 mission for a 9-day loop around the moon (the baseline EM-1 mission is a 31-day mission, including a period in lunary orbit). The study should be completed in the Spring.

And then, on Monday, SpaceX held its own media conference call to announce plans to send a Dragon 2 capsule on a very similar trajectory to the revised crewed EM-1 mission. The plan would send two paying civilian astronauts on a trip around the moon next year. Welcome to the new space race?

Virgin Galactic had another glide flight of its new SpaceShipTwo spaceplane last Friday.

The popular movie Hidden Figures, which tells the story of three women mathematicians and engineers who worked at NASA in the 1950s and 1960s, had three nominations for the Academy Awards on Sunday, but did not win any. During the award show, Katherine Johnson, one of the women on which the movie is based, was invited on stage.

Speaking of movies, check out this new theatrical trailer for Mission Control, a movie based on the book Go, Flight! by Rick Houston.

And here’s one more fun video before we move on to actual news that happened in space. Check out this segment Stephen Colbert did on his visit to Boeing’s facilities at Kennedy Space Center.

In Orbit

There was only one orbital launch since my last post: On Thursday, February 23 Roscosmos launched a Soyuz rocket carrying a Progress cargo spacecraft headed to the International Space Station.

That Progress spacecraft arrived at the ISS a day later without issue, less than a day after the SpaceX Dragon capsule – launched on Sunday, February 19th – was captured using the Space Station’s Canadarm 2. Here’s a timelapse of what it looks like to conduct that operation from inside the Cupola module.

While the Dragon rendezvous on Thursday was flawless, it came a day after a previous attempt had to be aborted due to an issue with relative GPS navigation with the space station.

Out There

NASA announced on Wednesday that the Spitzer Space Telescope had confirmed the existence of 7 small rocky worlds (similar in size to Earth) around the star TRAPPIST-1, which is 40 light years away.

Weekly Links

Down to Earth

Funeral services were held for Gemini and Apollo astronaut Eugene Cernan in Houston on January 24th.

The Russian workhorse heavy-lift rocket, the Proton, is currently grounded due to a new hardware recall. The rocket may be grounded through the spring, delaying a backlog of commercial flights.

The new US presidential administration and Congress are starting to have an impact on NASA’s plans. A few notable things happened in the beltway over the past few months.

  1. Acting NASA administrator Robert Lightfoot is looking into whether the first SLS flight could be crewed by astronauts rather than unmanned. This would potentially move up the timeline for NASA’s exploration plans by several years.
  2. An authorization bill in Congress could direct NASA back to having Orion capable of supporting ISS crew flights as a backup to the Commercial Crew plan.
  3. The Sierra Nevada Corporation is proposing that their Dreamchaser spacecraft could be used for a sixth Hubble servicing mission.

Severe weather in Louisiana on February 7th included a tornado which struck NASA’s Michoud facility near New Orleans. NASA facilities sustained damage but all employees are safe with no major injuries.

In Orbit

There have been five successful orbital rocket launches since my last update on January 23rd:

  1. On January 24th, Japan launched a military communications satellite on an H-IIA rocket.
  2. On January 28th, Arianespace launched a spanish communications satellite from French Guiana on a Soyuz rocket.
  3. On February 14th, Arianespace launch telecommunications satellites for Indonesia and Brasil from French Guiana on an Ariane 5 rocket.
  4. On February 15th, India launched a wide array of small satellites (104 in all) on their PSLV rocket.
  5. On February 19th, SpaceX launched an uncrewed Dragon spacecraft to the ISS on a Falcon 9 rocket from Florida.

And of course, here’s the awesome video of the Falcon 9’s first stage booster returning to Landing Zone 1 at CCAFS.

Up on the ISS, two cargo spacecraft departed. First, the Japanese HTV left ISS in late January. It stayed in orbit for another week with plans to conduct a tether experiment. However, the tether failed to deploy. HTV was followed quickly by the departure of Progress MS-03 from a nadir facing port of the space station.

Around the Solar System

NASA has decided to leave the Juno probe in it’s longer 56-day orbit around Jupiter instead of the planned closer 14-day orbit. This decision is based on anomalies seen with the probe’s main engine and worries that another burn will not go per plan.

Weekly Links

Down to Earth

Legendary astronaut Gene Cernan has died at the age of 82. Captain Cernan had an incredible career in the Navy and then at NASA, where he flew on three important missions: Gemini 9, Apollo 10, and Apollo 17. Gemini 9 had Cernan’s harrowing spacewalk (the second for an American); Apollo 10 was the dress rehearsal for the moon landing, in which Cernan and Stafford got to within just miles of the lunar surface before a planned abort; Apollo 17 is of course known as the final mission to the surface of the moon. If you haven’t read Cernan’s autobiography or seen the recent biography about him (both called The Last Man on the Moon) you should put them both on your list.

NASA administrator Charlie Bolden resigned last Thursday – as is tradition for most presidential appointees – the day before inauguration of president Donald J. Trump. NASA is currently being run by acting administrator Robert Lightfoot.

Andy Weir, author of The Martian, announced on social medial that he will be working with CBS on a new show set in Houston’s mission control.

In Orbit

A small Japanese rocket, which would have been the smallest ever to make orbit, failed during a launch attempt last Saturday, January 14th. The rocket was carrying a single small cubesat.

However, two rockets did make successful launches within the last week. First, SpaceX had a spectacular return to flight on Saturday, January 14th, placing 10 satellites into orbit for Iridium after a flawless launch of a Falcon 9 rocket from Vandenberg in California. They even stuck the landing on the first stage recovery.

Lastly, on January 20th, United Launch Alliance launched an Atlas V carrying a USAF satellite, GEO 3.

Meanwhile, a failure investigation has narrowed down the loss of a Russian Soyuz rocket last month to an oxidizer pump, leading the Russian space agency to make some part replacements on both the next manned and unmanned flights. Hopefully we will see Soyuz rockets flying to the ISS again soon!

Around the Solar System

The Japanese probe in orbit of Venus, Akatsuki, has made observations of a massive standing wave in the planet’s atmosphere.

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

Down To Earth

American hero and original Mercury astronaut John Glenn died on December 8th.

Former space shuttle astronaut, climate scientist, and director at Goddard Space Flight Center, died on December 23rd. He was a fierce advocate of climate science. This open letter he wrote after his cancer diagnosis is worth a read.

Virgin Galactic conducted another SpaceShipTwo glide flight on December 22, the second of the month.

Actor Ryan Gosling is to play Neil Armstrong in a new biopic to be filmed next year.

In Orbit

It’s been a busy month since my last post on December 4th, with 12 more successful orbital rocket launches (check out this post from Parabolic Arc for 2016 launch statistics).

The Japanese HTV cargo craft which launched in early December was successfully captured by the on-orbit ISS crew on December 12th.

Around the Solar System

There are some problems at Mars:

The Curiosity rover has a problem with its scientific drill. Flight controllers are troubleshooting.

The Mars Odyssey orbiter went into safe mode last week. It is expected that it will be recovered.

Weekly Links

Down to Earth

Check out this super-informative video with astronaut Reid Wiseman explaining “everything about living in space” in 5 minutes:

Wondering what the US Presidential election means for NASA and the space industry? Here are a few opinion pieces:

Spaceflight Insider

Space.com

SpaceNews

The German space agency is deploying a large greenhouse to the South Pole research station in Antarctica. The technology, if it works, should be transferable to spaceflight.

In Orbit

Five orbital launches since my last post on October 30th (see this Wikipedia page for a nice list of all launches this year, with dates, etc.):

Japan launched the Himawari 9 meteorological satellite on an H-II rocket.

China had three launches: the debut of their new Long March 5 heavy-lift rocket on carrying an electric propulsion demonstration payload; a small Long March 11 rocket carrying an X-ray navigation demonstration satellite (read up on pulsar navigation here); a medium-lift Long March 2D rocket carrying a weather satellite.

The fifth launch was a ULA Atlas V rocket carrying a satellite for Earth-observation company WorldView. The launch was from Vandenberg in California.

Around the Solar System

The Mars rover Curiosity spent some time studying an iron meteorite that it found on the surface of the red planet.

Weekly Links

Down to Earth

SpaceX posted an update to their accident investigation regarding the rocket that was lost on a launch pad in September. Here’s a direct link to their anomaly updates page. They hope to return to flight this year.

In Orbit

In launches, it has been a slow couple of weeks, with only two orbital launches since my last post on October 16th. It was quality over quantity though, as both launches were important and anticipated missions for ISS operations.

First, Orbital ATK was able to finally launch their upgraded Antares rocket with a Cygnus cargo craft on its way to ISS. The rocket launched on Monday October 17th and was captured at the ISS almost a week later on Sunday the 23rd. The delay was necessary due a higher priority launch and docking of three crew aboard a Soyuz (see below).

On Wednesday, October 19, the Soyuz rocket carrying the second half of Expedition 50 finally launched (after a spacecraft problem delayed them several weeks). The launch, rendezvous, and docking were flawless. The new crew of Shane Kimbrough Andrei Borisenko, and Sergey Ryzhikov arrived at ISS on the 21st.

There were 8 people in space only briefly (recall that two Chinese taikonauts are hanging out on their own space station right now). Expedition 49 had to hand over command to new Expedition 50 commander Kimbrough on the 28th before Anatoli Ivanishin, Kate Rubins, and Takuya Onishi undocked on Saturday night and landed safely a few hours later.

Speaking of the Chinese taikonauts, they docked successfully to the Tiangong-2 space station on October 20th and plan to stay for several weeks.

Around the Solar System

The ExoMars mission arrived at Mars on October 19th. The orbiter (known as TGO – Trace Gas Orbiter) made a successful orbital insertion burn but unfortunately, contact with the Schiaparelli lander was lost at the planned time of touchdown. The lander is suspected to be lost, but NASA’s Mars Reconnaissance Orbiter (MRO) was able to image the lander’s crash site, which should help with investigations. Below is an animated GIF showing the recent appearance of the lander in MRO imagery:

And here’s a closeup from the MRO’s HiRise camera.

In other bad news, the Juno spacecraft went into safe mode during its closest approach to Jupiter on October 18 and was not able to obtain scientific data. This came only a few days after an engine burn had been cancelled. Fortunately, mission controllers were able to command Juno out of safe mode on October 24 and perform at least one “trim” maneuver. The mission timeline will be impacted by the problem but there are still dozens of orbits left in the primary mission to gather data.

Here is a nice post with images about the preliminary results from Juno so far.

Speaking of spacecraft beaming data back to Earth, the data downlink from the New Horizons probe of its Pluto flyby last July has finally completed, 15 months later!

Weekly Links

Down to Earth

An opinion piece by Barack Obama appeared in CNN last week discussing his vision for America’s future in space and particularly, future missions to Mars.

Amid talk of a schedule slip of the first Starliner missions, Boeing announced they will need to add an aeroskirt for their launch configuration atop the Atlas V rocket (follow the link for an illustration).

In Orbit

Astronauts on the ISS opened up the BEAM module for another round of inspections (that’s the “expandable” module that was added back in May). Meanwhile, NASA announced that it is seeking commercial partners to build new functional modules for the ISS. Of course, the supplier of BEAM, Bigelow Aerospace, is one of the companies seeking the contract.

The launch of Orbital ATK’s Antares rocket (returning to flight almost 2 years after the last one failed after launch) was delayed until tomorrow evening due to a technical issue.

Earlier this evening, China launched a manned Shenzhou capsule with two crew aboard. They are heading to the new Tiangong-2 space station for an extended mission. When the latest ISS Soyuz crew launches in a couple of days, there will be 8 people in space! It has been very rare for the number to grow above 6 since the last Space Shuttle mission five years ago.

Around the Solar System

Due to some sticky valves in the Juno spacecraft’s propulsion system, the probe will not be making a scheduled burn to reduce its orbital period from over 50 days to just 14 days. NASA is waiting another orbit (so, until December) to investigate and then try again.

Astronomers have discovered a new distant unnamed object (2014 UZ224) which may be large enough to qualify as a “dwarf planet”. The object is smaller than Pluto and orbits about 5 times farther from the sun.

The ExoMars/Schiaparelli mission – a joint mission between ESA and Roscosmos – had some critical mission events today, including separation of the Schiaparelli lander and a critical orbital maneuver to setup for orbital insertion next week.