Extraterrestrial Life
The official U.S. government position on extraterrestrial life and the three major efforts to search for it. Clockwise from top left: The development and testing of hypotheses on extraterrestrial life is known as "exobiology" or "astrobiology", although astrobiology also considers Earth-based life in its astronomical context. On 13 February 2015, scientists (including Geoffrey Marcy, Seth Shostak, Frank Drake, Elon Musk and David Brin) at a convention of the American Association for the Advancement of Science, discussed Active SETI and whether transmitting a message to possible intelligent extraterrestrials in the Cosmos was a good idea;[5][6] one result was a statement, signed by many, that a "worldwide scientific, political and humanitarian discussion must occur before any message is sent".[7] §Background §Possible basis §Biochemistry All life on Earth is based upon 26 chemical elements. Life on Earth requires water as its solvent in which biochemical reactions take place.
The Moon is a KREEPy place
Posted by Emily Lakdawalla Topics: NASA lunar missions before 2005, the Moon, explaining science If you go to a conference about lunar geology, sooner or later you'll hear the term "KREEP" bandied about. (And almost as soon as KREEP is mentioned, a bad pun will be made. The simple definition is that KREEP is an acronym for potassium (chemical symbol K), rare earth elements (the ones that are always cut out of the periodic table and drawn in two separate rows of their own, abbreviated REE), and phosphorus (chemical symbol P). Potassium, rare earths, and phosphorus are lumped together in the term KREEP because they tend to occur together in the lunar crust. Rufus Gefangenen Forming the Moon The molten moon had a bulk composition of rock; more specifically, its bulk composition is of a mafic rock, one that's rich in iron and magnesium. But the way it solidifies is a bit strange. Some elements just can't squeeze in to the crystal lattices. OK, so that's what KREEP is.
Bigelow Aerospace to Study Moon Base in Deal With NASA
Bigelow Aerospace LLC, a maker of inflatable space habitats, will study the possible return of men to the moon as part of an agreement with NASA that may lead to more public-private partnerships for exploration. The company said it will identify options for government and private investments to advance human space exploration beyond low-Earth orbit, or more than 1,200 miles (1,900 kilometers) from Earth’s surface. Las Vegas-based Bigelow Aerospace won’t be paid for work that is scheduled to be completed this year. A lunar base will be part of the study announced today by the National Aeronautics and Space Administration, though the space agency isn’t planning to fund a moon mission. The deal “signals that NASA is open to working with the private sector on lunar activities even if the agency itself does not want to lead such an effort,” Scott Pace, director of the Space Policy Institute at George Washington University, said in a phone interview.
Future Space-based Habitats
Lunar Pioneer
NASA's big decision: Build a moon base or lasso an asteroid?
While NASA's proposed budget for 2014 unveiled this week reaffirms the space agency's ambitious plan to send astronauts to an asteroid, some members of Congress are pushing for a more familiar goal: a moon base by 2022. Skip to next paragraph Subscribe Today to the Monitor Click Here for your FREE 30 DAYS ofThe Christian Science MonitorWeekly Digital Edition President Barack Obama's federal budget request for 2014, released Wednesday (April 10), gives NASA $105 million to jump-start a bold plan to park an asteroid near the moon. But some lawmakers contend that the moon should still be NASA's immediate human spaceflight target. "The moon is our nearest celestial body, taking only a matter of days to reach," Rep. The bill would also give NASA's manned spaceflight efforts more direction, its sponsors say. "This legislation is not just about landing another human on the moon.
NOVA | Finding Life Beyond Earth
PBS Airdate: October 19, 2011 NARRATOR: Is Earth the only planet of its kind in the universe, or is there somewhere else like this out there? Is there life beyond Earth? The search for alien life is one of humankind's greatest technological challenges. And scientists are seeking new ways to find answers. JIM GREEN (Director, Planetary Science Division, NASA): We're pushing the boundary of information of where life can exist, past the earth and out into the solar system. NARRATOR: Leading the search are sophisticated telescopes that scan the sky and an armada of robotic probes exploring the outer reaches of our solar system, all revealing the planets, moons, asteroids and comets like never before. AMY MAINZER: We can go places and see things that there's no other way we could've ever seen. JIM GREEN: The pace of discovery, just in the last couple of years, is just mindboggling. NARRATOR: Finding Life Beyond Earth, up now on NOVA. NARRATOR: But what exactly is this liquid?
Moon Express Announces Dr. Alan Stern as Chief Scientist | Hosts Gala Celebration Of New Space Era Tonight | Portal to the Universe
moonandback21 Jul 2011, 21:53 UTC (200 words excerpt, click title or image to see full post) MOUNTAIN VIEW, Calif. — Moon Express, a Google Lunar X PRIZE contender, revealed Wednesday that internationally recognized planetary scientist Dr. Alan Stern will be the Chief Scientist and Mission Architect for the company. The announcement was made as lunar scientists from around the world gather at the NASA Ames Research Park for their annual Lunar Science Forum, convened by the NASA Lunar Science Institute. Dr. Dr. Note: All formatting and links have been removed - click title or image to see full article.
Private Spaceflight Companies Eye Moon Bases
Human exploration of deep space is looking more and more like a tag-team affair, with NASA jetting off to asteroids and Mars while the private sector sets up shop on the moon. While NASA has no plans to return humans to the lunar surface anytime soon, private industry is eyeing Earth's nearest neighbor intently, said Bigelow Aerospace founder and president Robert Bigelow. "The brass ring for us is having a lunar base — as a company and in conjunction with other companies, and even other, possibly, foreign entities as well," Bigelow said during a teleconference with reporters today (May 23). Two months ago, NASA tapped Bigelow Aerospace to sound out the private sector's interest and intent in going beyond low-Earth orbit, in an attempt to help map out possible public-private partnerships in deep space. Space entrepreneur Robert Bigelow (left) discusses layout plans of the company's lunar base with Eric Haakonstad, one of the Bigelow Aerospace lead engineers.Credit: Bigelow Aerospace
