17026162
submission
Matt_dk writes:
Apollo 9 astronaut Rusty Schweickart is among an international group of people championing the need for the human race to prepare for what will certainly happen one day: an asteroid threat to Earth. Schweickart said the technology is available today to send a mission to an asteroid in an attempt to move it, or change its orbit so that an asteroid that threatens to hit Earth will pass by harmlessly. What would such a mission entail?
16954086
submission
Matt_dk writes:
A small asteroid will pass very close to Earth this Tuesday. Astronomers are still tracking the object, now designated as 2010 TD54, and various estimates say it could possibly come within anywhere from 52,000 km (33,000 miles) to 64,000 km (40,000 miles) on October 12, with closest approach at approximately 11:25 UT.
16876298
submission
Matt_dk writes:
The formation of Saturn's rings has been one of the classical if not eternal questions in astronomy. But one researcher has provided a provocative new theory to answer that question. Robin Canup from the Southwest Research Institute has uncovered evidence that the rings came from a large, Titan-sized moon that was destroyed as it spiraled into a young Saturn.
9422846
submission
Matt_dk writes:
Scientists working on the Cassini space mission have found negatively charged water ions in the ice plume of Enceladus. Their findings, based on analysis from data taken in plume fly-throughs in 2008 and reported in the journal Icarus, provide evidence for the presence of liquid water, which suggests the ingredients for life inside the icy moon. The Cassini plasma spectrometer, used to gather this data, also found other species of negatively charged ions including hydrocarbons.
8329740
submission
Matt_dk writes:
Spectacular satellite images suggest that Mars was warm enough to sustain lakes three billion years ago, a period that was previously thought to be too cold and arid to sustain water on the surface, according to research published today in the journal Geology. Earlier research had suggested that Mars had a warm and wet early history but that between 4 billion and 3.8 billion years ago, before the Hesperian Epoch, the planet lost most of its atmosphere and became cold and dry. In the new study, the researchers analysed detailed images from NASA’s Mars Reconnaissance Orbiter, which is currently circling the red planet, and concluded that there were later episodes where Mars experienced warm and wet periods.
7872572
submission
Matt_dk writes:
Surendra Pal, associate director of the Indian Space Research Organization (ISRO) Satellite Centre says that Chandrayaan-1 picked up signatures of organic matter on parts of the Moon’s surface. “The findings are being analyzed and scrutinized for validation by ISRO scientists and peer reviewers,” Pal said. At a press conference Tuesday at the American Geophysical Union fall conference, scientists from NASA’s Lunar Reconnaissance Orbiter also hinted at possible organics locked away in the lunar regolith. When asked directly about the Chandrayaan-1 claim of finding life on the Moon, NASA’s chief lunar scientist, Mike Wargo, certainly did not dismiss the idea.
6837430
submission
Matt_dk writes:
Just one week after the first test flight test of the Ares I-X rocket, NASA says it may decide to cancel a follow-up launch called Ares 1-Y, which wasn't scheduled until 2014. Reportedly, program managers recommended dropping the flight because, currently, there isn't the funding to get an upper stage engine ready in time. Depending on whether the Obama administration decides to continue the Ares I program, this decision may be moot. Earlier this week Sen. Bill Nelson said Obama may make a decision on NASA's future path, based on the report by the Augustine Commission, by the end of November.
6667401
submission
Matt_dk writes:
The Russian Federal Space Agency Roscosmos has developed a design for a piloted spacecraft powered by a nuclear engine, the head of the agency said on Wednesday. “The project is aimed at implementing large-scale space exploration programs,” Anatoly Perminov said at a meeting of the commission on the modernization of the Russian economy. He added that the development of Megawatt-class nuclear space power systems (MCNSPS) for manned spacecraft was crucial for Russia if the country wanted to maintain a competitive edge in the space race, including the exploration of the Moon and Mars.
6306555
submission
Matt_dk writes:
For the first time, astronomers have confirmed that an asteroid contains frozen water on its surface. Analysis of asteroid 24 Themis shows evidence of water ice along with organic compounds widespread across the surface. The scientists say these new findings support the theory that asteroids brought both water and organic compounds to the early Earth, helping lay the foundation for life on the planet.
6229299
submission
Matt_dk writes:
The U.S. firm Space Adventures said on Friday it will be able to send two space tourists into orbit on Soyuz spacecraft from 2012 onwards. "We have been working on this project for a number of years" said Sergey Kostenko, the head of the company's office in Russia. Each Soyuz will carry two tourists and a professional astronaut. One of the tourists will have to pass a year-and-a-half training course as a flight engineer. Space Adventures has been authorized by the Russian Federal Space Agency Roscosmos to select and contract candidates for space tourist trips.
