Are We Alone In the Universe? New Analysis Says Maybe. In a new paper published on arXiv.org, astrophysicist David Spiegel at Princeton University and physicist Edwin Turner at the University of Tokyo argue...using a statistical method called Bayesian reasoning...that the life here on Earth could be common, or it could be extremely rare — there's no reason to prefer one conclusion over the other. [more inside]
posted by Potomac Avenue on Jul 28, 2011 - 111 comments

You Never Get a Seventh Chance to Make a First Impression: An Awkward History of Our Space Transmissions
posted by Artw on Mar 7, 2011 - 47 comments

Dr. Hoover has discovered evidence of microfossils similar to Cyanobacteria in freshly fractured slices of the interior surfaces of the Alais, Ivuna, and Orgueil CI1 carbonaceous meteorites. The scientist's conclusion is that the fossilized bacteria are not Earthly contaminants but are the fossilized remains of living organisms which lived in the parent bodies of these meteors, e.g. comets, moons, and other astral bodies. The implications are that life is everywhere, and that life on Earth may have come from other planets.
posted by Surfin' Bird on Mar 5, 2011 - 150 comments

Dmitar Sasselov is an astrophysicist, Director of the Origins of Life Initiative at Harvard and a co-investigator of the Kepler space telescope project to find Earth-like planets around the Cygnus constellation and discover extraterrestrial life. But no matter how successful the Kepler project may be, it still won't answer the most fundamental questions of astrobiology: How diverse is life in the universe? If alien life exists, will it have Earthly DNA and proteins? Or will it run on something else? So Dr. Sasselov has decided to collaborate with two synthetic biologists, asking them to create a life form based on mirror-image versions of what we know as the essential building blocks of living things on Earth. [more inside]
posted by zarq on Dec 14, 2010 - 13 comments

Friday Flash Fun: Color Theory is a puzzle platformer about... um... color theory. And gravity switching. And aliens. Via the eternal font of pleasant time-wasters, jayisgames.
posted by macmac on Aug 6, 2010 - 19 comments

A British tabloid claims that NASA will today announce the probable presence of life on Mars. Planetary and atmospheric scientists from NASA's Mars program will address a press conference at 2PM EST, apparently about concentrated methane plumes that bloom and dissipate [pdf]. There was a false alarm about a similar briefing a few months ago; is this the real deal?
posted by Joe in Australia on Jan 15, 2009 - 129 comments

Friday Flash Fun: Evacuation is a puzzle game about explosive decompression. Save the crew! Eject the aliens into space by opening the spaceship's doors! The catch: doors of the same color all open together. [more inside]
posted by Rinku on Jan 9, 2009 - 17 comments

With all the crystal skulls, nazca lines and such at the box office these days now might be the ideal time to reacquaint yourself with the theories of Erich von Däniken. What better way to do it than by watching William Shatners Mysteries of the Gods ( Pt. 1, Pt. 2, Pt. 3, Pt. 4, Pt. 5, Pt. 6, Pt. 7, Pt. 8, Pt. 9, Pt. 10)(MULTI LINK YOUTUBE SHATNERFEST)
posted by Artw on Jun 10, 2008 - 28 comments

The "Great Filter" is a hypothetical barrier to explain why civilisations are so unlikely to progress to the point of inter-stellar colonisation that we have not encountered any in 40 years of looking. Maybe humanity has already negotiated the filter - as some massive evolutionary improbability - or perhaps it lies in our future as an almost-certain threat to our existence? We should hold our breath as we look for evidence of life on Mars.
posted by rongorongo on May 12, 2008 - 85 comments

It's official. The aliens are coming. In 2017. Turns out they might like The Beatles after all. The UN is on the case. The Hindus are going to be especially upset.
posted by monospace on Feb 29, 2008 - 21 comments

Fears that malevolent aliens will tune into this week's broadcast of The Beatles' song "Across the Universe" have been voiced by scientists.
posted by monospace on Feb 7, 2008 - 68 comments

Who Speaks for Earth? "After decades of searching, scientists have found no trace of extraterrestrial intelligence. Now, some of them hope to make contact by broadcasting messages to the stars. Are we prepared for an answer?"
posted by homunculus on Jan 1, 2008 - 63 comments

space war - a little animated clip by Christy Karacas.
posted by madamjujujive on Aug 18, 2007 - 26 comments

"Should we ever hear the space-phone ringing, for God's sake let us not answer". First we are told Space Colonisation is a stupid and expensive idea. Then that contact with space aliens is inadvisable. Maybe David Bowie was right, the government would just ruin it anyway. That's why we can't have nice things.
posted by takeyourmedicine on Jun 28, 2007 - 92 comments

Tales of Future Past* — It's been a looong Monday. Do you want to get off the planet and out of the city to a place where you can really live? Well, here's some food for thought on the way home down life's highways. First, take a break from all this depressing war talk. Then empower yourself by giving yourself some space and maybe taking off for a few days. Drive just a bit slower, turn up the volume and imagine that your mechanic will say the tranny's OK after all. Once you're in the front door, take time to get slightly wired and forget all about politics. Get recharged for tomorrow: have a nice long bath, put your mind at ease, watch Ur Fave shOw, and listen to some soothing music. Now, don't things look a lot better? [*Note the 'Start the Tour' links at the bottom of each page.]
posted by cenoxo on Feb 12, 2007 - 10 comments

Voyager's Golden Record This is life on earth 1977 as it will appear when Voyager 1 meets life (ETA 40.000 years from now)... and finds a turntable. Pioneers 10 and 11, which preceded Voyager, both carried small metal plaques identifying their time and place of origin for the benefit of any other spacefarers that might find them in the distant future. With this example before them, NASA placed a more ambitious message aboard Voyager 1 and 2-a kind of time capsule, intended to communicate a story of our world to extraterrestrials. The Voyager message is carried by a phonograph record-a 12-inch gold-plated copper disk containing sounds and images selected to portray the diversity of life and culture on Earth. Hello, ET!
posted by Bravocharlie on Dec 13, 2006 - 35 comments

To celebrate Tom Cruise's wedding, ABC News reprints the 1992 Ted Koppel interview with Cruise's best man, and spiritual leader, Religious Technology Center chairman David Miscavige. It was his first and last significant interview, and you can see why.
posted by Arcaz Ino on Nov 18, 2006 - 81 comments

The latest on the so-called "Red Rain of Kerala." The authors of this study suggest the mysterious red biological material provides evidence of Panspermia. The BBC offers this updated look at the topic. (Previously discussed here on MeFi.)
posted by saulgoodman on Nov 14, 2006 - 15 comments

How to be an Internet Woo-woo. From fake moon landings and mystery lights to Roswell Rods and Grey Aliens, the Woo-woo Credo gives you the lowdown on being an effective conspiracy theory monger.
posted by brownpau on Jan 15, 2004 - 11 comments

"clouds and even rain showers seem to have been spotted on Titan, Saturn's largest moon. Scientists have already labeled Titan a hot spot in the search for extraterrestrial life, and the new work adds to that enthusiasm." You bet it does.
posted by owillis on Oct 20, 2000 - 10 comments

The Search for Extraterrestrial Intelligence at HOME This isn't a new site, but there is a new version of the software. It's nice to be able to use your CPU to find ETs while your away from your machine. It is simple and doesn't crash. Check it out! I'm running in on both my NT box and my MAC G4
posted by brdesign on Jan 27, 2000 - 0 comments

We are not alone.... a new planet outside of our solar system was found today. It's only a matter of time before the little green men come down to greet us.
posted by mathowie on Nov 13, 1999 - 0 comments