Dragon has undocked from ISS and is on its way back to Earth.
And here’s a nice description of the “creepy” cargo it is bringing back.
Update: Dragon has successfully splashed down. More here.
Construction workers in space: A spacewalk November 1 will attempt to find and repair a coolant leak that could force a power reduction at the station.
A slight 1.5-pound-per-year leak in the channel 2B cooling system has been present since 2007 and during a shuttle visit last year, two spacewalking astronauts added eight pounds of ammonia to the reservoir to boost it back up to a full 55 pounds. The plan at that time was to top off the system every four years or so to “feed the leak,” replacing the lost ammonia as required.
But over the past few months, engineers saw the leak rate suddenly quadruple, either because something changed at the original leak site or, more likely, because another leak developed somewhere else in the system.
Whether the leakage was caused by space debris or a component failure of some sort is not yet known. But the result is: If the leak continues at its current rate, the coolant will drop below a 40-pound safety limit and the system will shut down by the end of the year or shortly thereafter, taking power channel 2B down with it. While the space station can operate without the full complement of power channels, the loss of channel 2B would force flight controllers to power down equipment, eliminating redundancy and reducing the amount of research the crews could carry out.
Hurricane Sandy has forced Orbital Sciences to suspend the engine tests of the Antares rocket.
Sugru: the story of the invention of this ultimate repair tool.
Firing paintballs at an asteroid to prevent it from hitting the Earth.
The failure last August of the second stage of a Russian Proton rocket is causing more problems: the stage exploded in mid-October and the debris is now a threat to ISS and other satellites.
The competition heats up: The FAA has issued an experimental permit to SpaceX to test fly its Grasshopper reusable rocket booster.
With a successful Soyuz docking today, ISS is back to a full six person crew.
The Air Force has released its investigation into the failure of the August test flight of the X-51a hypersonic scramjet.
As first surmised, the problem was a control fin. Though they haven’t set the date for the next test flight, it appears they do intend to proceed.
The competition heats up: Stratolaunch has officially opened its production facility in Mojave.
On Wednesday Richard Branson told an audience of students in Poland that the first paid tourist flight of SpaceShipTwo is at least 12 to 18 months away.
That seems about right. This gives them about a year of powered flight tests, all manned but with no paying customers, in order to make sure the system is save for customers.
The first mirror for the Giant Magellan Telescope has been completed.
This is the first of seven. It is also the largest single mirror ever polished, at 8.4 meters, or 27.5 feet across. When completed the GMT’s segmented mirror will be 25 meters across, or more than 82 feet.
Early today a Soyuz rocket successfully lifted ISS’s next crew into orbit.
The competition heats up: On Friday Blue Origin successfully tested the launch abort system for its New Shepard manned capsule.
The competition heats up: Virgin Galactic has begun the installation of SpaceShipTwo’s engine in preparation for its first powered test flights.
The article also provides some details about the status of XCOR’s Lynx suborbital craft.
Engine problems on a Delta 4 rocket launch two weeks ago could delay the launch of the Atlas 5 rocket scheduled to lift the X-37B on its next mission.
Don’t ask me why the military would delay an Atlas 5 launch because of problems on a Delta 4. It seems to be left over caution from the 1960s, when no rocket was reliable and they were trying to figure out how to do it. Now, it simply seems silly.
Orbital Sciences has delayed the first demo launch of its Cygnus cargo capsule until March 2013 at the earliest.
The schedule for Antares itself has not been delayed. Launchpad tests are still scheduled to begin next week, with the first engine test set for early November, and the first launch of Antares set for December.
They don’t explain the reason for the Cygnus delay. I suspect they simply decided to be realistic. It was always unlikely that the first Cygnus launch would follow only a month after the first Antares launch, especially if there are any kinks in that launch.
The competition heats up: Blue Origin has successfully tested its new hydrogen/oxygen rocket engine.
This would be the second new American rocket engine since the 1980s, following SpaceX’s Merlin engine. That it uses hydrogen/oxygen is also significant, as these fuels provide the highest ratio of power to weight. (As far as I remember, the shuttle was the only other spacecraft to use hydrogen/oxygen.)
Post corrected. Thanks Paul!
The science team for New Horizons is considering shifting the spacecraft’s Pluto flyby away from the planet to avoid orbital debris.
“We’ve found more and more moons orbiting near Pluto — the count is now up to five,” Stern said. “And we’ve come to appreciate that those moons, as well as others not yet discovered, act as debris generators populating the Pluto system with shards from collisions between those moons and small Kuiper Belt objects.”
Astronomers now have the technology to observe Io’s volcanoes erupt, from Earth.
The competition heats up: Just two months after the failure of its second stage during launch, Russia’s Proton rocket successfully put a communications satellite into orbit yesterday.
This quote, from this Space News article, also implies that there is increasing competitive pressure in the launch industry, which I attribute to the success of SpaceX’s Falcon 9:
Perhaps the most striking element of the launch is that Washington- and Luxembourg-based Intelsat agreed to proceed with it so soon after the August failure of the Proton Breeze-M upper stage. It has been common practice following previous Proton failures that a Russian government mission would be the customer on the return to flight. In this case, Intelsat and its insurance underwriters were sufficiently persuaded that Reston, Va.-based ILS and Proton prime contractor Khrunichev Space Center of Moscow had come to grips with the issue to agree to be the customer for the first flight after the failure.
Scientists have found the source of the water on the Moon and Mercury: the solar wind. Key paragraph:
“We found that the ‘water’ component, the hydroxyl, in the lunar regolith is mostly from solar wind implantation of protons, which locally combined with oxygen to form hydroxyls that moved into the interior of glasses by impact melting,” said Zhang, the James R. O’Neil Collegiate Professor of Geological Sciences. “Lunar regolith is everywhere on the lunar surface, and glasses make up about half of lunar regolith. So our work shows that the ‘water’ component, the hydroxyl, is widespread in lunar materials, although not in the form of ice or liquid water that can easily be used in a future manned lunar base.” [emphasis mine]
Though this result would explain the detection of hydrogen on the lunar surface and would also mean that this hydrogen is far less useful for future colonists than previously hoped, it doesn’t eliminate the possibility that there is ice in the permanently shadowed craters near the lunar poles that came from other as yet unknown sources.
It’s now official: Baumgartner broke the sound barrier during his skydive.
Felix Baumgartner’s record-breaking skydive has begun. You can watch it live here.
Update: Baumgartner is safely on the ground, having jumped from more than 24 miles altitude.
I am thrilled to announce that the new ebook edition of my first book, Genesis: the Story of Apollo 8, is now officially available for sale for only $5.99 from Mountain Lake Press. The direct link to Mountain Lake Press’s sales page is here and on the right. Within two weeks the book will also be available at all retailers, but if you buy it direct from Mountain Lake Press, I will make a little extra money, which would be very much appreciated.
In creating this ebook edition I made sure that all the graphics from the original but out-of-print hardback were included. Valerie Anders, the wife of astronaut Bill Anders, added her own thoughts in a new foreword. I also added a new introduction discussing how the history of space exploration has evolved since the book’s initial publication in 1998. As I noted,
» Read more
The Orbcomm communications satellite that was put in the wrong orbit by the Falcon 9 rocket Sunday has fallen to Earth.
According to the company insurance will cover most of the loss. They also said that “had Orbcomm been the primary payload on this mission, as planned for the upcoming launches, we believe the OG2 prototype would have reached the desired orbit.” This appears to be a strong endorsement of the Falcon 9 rocket from the company, which has a contract with SpaceX to launch 17 more satellites on two Falcon 9 launches, scheduled for 2013 and 2014.
How Huygens bounced on Titan. With animation.
Felix Baumgartner’s record-setting skydive of 23 miles has been postponed until Sunday due to weather concerns.
The astronauts on ISS have opened the hatch to Dragon one day early.
