Cassini Spots Potential Ice Volcano on Saturn Moon

Scientists have used data from Cassini to identify what they think are ice volcanoes on Titan. The two volcanoes, each about 3000 feet high, are located near the equator and appear to resemble the volcanoes on Earth, with a central crater on top of cone-like peak and finger-like flows coming down the sides from the crater. The lava here, however, is not molten rock, but water.

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Boeing Submits Proposal for 2nd Round of NASA Commercial Crew Development Program

In competition with the Orbital/Virgin Galactic proposal I mentioned yesterday, Boeing has submitted its own proposal to provide crew and cargo ferrying service to ISS.

Considering the federal budget debt and the political winds for reducing that debt, I have great doubts the subsidies for these proposals will ever arrive. Nonetheless, with the end of the shuttle program and nothing to replace it, the United States has a serious need for a system to get crew and cargo into space. And in a free society, fulfilling that need means profits, which is why these proposals are beginning to appear, and will get built, regardless of whether Congress funds them up front or later buys the services.

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The last remant of a supernova

Time for some astronomical sightseeing! This image, produced from data taken by both the Hubble Space Telescope and the Chandra X-ray Observatory, shows what astronomers call a supernova remnant. The bubble, located in the Large Magellanic Cloud 160 thousand light years away, is thought to be 23 light years across and expanding about 11 million miles per hour. It is thought that the supernova itself took place around 1600. That we have no record of it is probably because it was only visible in the southern hemisphere, where few records of such events were being kept at that time. More here, including the image using only Hubble data as well as a video animation that is quite stunning.

Supernova remnant

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Orbital Sciences and Virgin Galactic team up to propose orbital craft

Orbital Sciences and Virgin Galactic have teamed up to propose a four person reusable orbital spacecraft to ferry crews to ISS. Key quote:

The spacecraft, designed to launch atop an Atlas 5 rocket and dock with the international space station, could be ready for test flights as early as 2014. The remotely piloted spacecraft would be able to carry four passengers initially, including three astronauts and one paying ticketholder, though based on market demand the number of private rides aboard the vehicle could grow to two, with four astronaut seats available, sources said. In the works at Orbital for the past year, the reusable spacecraft would be built using existing materials and technologies, employ standard hypergolic propellants and rely on a pusher escape system in the event of a launch mishap, sources said. [emphasis mine]

Note their insistence that they be allowed to fly tourists. This is a major change from how NASA has operated in the past, as a Soviet-style government agency hostile to commercial profits.

Correction: Clark Lindsey notes that the Orbital press release makes no mention of Virgin Galactic, as reported above.

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