MetaFilter posts tagged with NASA and planets

Did that star just blink?

borkencode — Fri, 06 Mar 2009 14:32:32 -0800

Tonight NASA is scheduled to launch the Kepler Mission (named after planetary legislator Johannes Kepler) with the goal of finding Earth size planets in orbit around stars in the Cygnus-Lyra region of the sky. Over the next 3 and a half years it will maintain a nearly unblinking gaze on the approximately 100 thousand stars in the region. NASA expects it to find about 50 Earth size planets, as well as hundreds that are larger. You can watch the launch live on NASA TV. Currently the smallest known exoplanet is COROT-Exo-7b discovered by the French COROT mission. (previously) Both the COROT and Kepler missions use the planetary transit method of detection, where a planet crossing the face of a star causes a dip in its brightness.

Hot space bot uses stirling engine

Artw — Mon, 12 Nov 2007 12:24:57 -0800

NASA proposes using a Stirling cooler (essentially a Stirling engine in reverse) to keep a probe cool on the surface of Venus, which has had a tendency to melt or smash previous probes. The cooler would maintain a 25cm sphere within the probe at 200°C -- 100°C above the boiling point of water but sufficiently cool for a high-temperature microcontroller to operate. The waste heat radiators on the exterior of the sphere would reach the temperature of 500°C, 40°C above the the normal Venusian surface temperature.

Ring-around-the-posie

moonbird — Fri, 02 Jul 2004 06:17:31 -0800

" It was beyond description, really, it was mind-blowing," she said. "I'm surprised at how surprised I am at the beauty and the clarity of these images. They are shocking to me."

planetary photojournal

crunchland — Tue, 18 Nov 2003 07:43:18 -0800

planetary photojournal

http://planetquest.jpl.nasa.gov/TPF/tpf_what_is.html

stbalbach — Sun, 17 Aug 2003 21:09:22 -0800

NASA thinks we can find another Earth in another nearby star. When we do, how can we possibly travel light-years to get there? It might not be as hard as you'd think . . .

Is there Life on Mars?

anyanka — Wed, 22 Jan 2003 16:36:53 -0800

Is there Life on Mars? As NASA announce a nuclear-powered Mars and beyond project, British scientists are looking forward to the launch of the Beagle 2 which will search for signs of life on the Red Planet. Is this the return of the Space Race in a new form? And will they find any sign of life?

adrianhon — Sun, 26 May 2002 07:35:10 -0800

Next Thursday, NASA will announce the discovery of huge water ice oceans on Mars. Lying less than a metre beneath the surface south of 60° latitude, the water ice reservoirs if melted would form an ocean 500m deep covering the entire planet. NASA insiders believe these findings could result in a manned landing within 20 years.

monstro — Mon, 22 Jan 2001 21:07:41 -0800

Will the Pluto mission once again get cancelled? I mean, now that Pluto isn't a planet anymore; apparently, it's been downgraded to "big ball of ice." After all those years of service, of faithful rotation, that steadfast revolve, how can they just kick a planet out like that?! It's a travesty, I tell you -- a travesty!

john — Mon, 20 Nov 2000 16:52:22 -0800

Get a piece of the Rock. Moon that is. I say boy, you got to think of the future. Just remember all these worlds are yours except Europa.

mathowie — Tue, 16 Nov 1999 17:33:36 -0800

A Mars Lander is set to touch down on Mars sometime between December 1st and December 20th of this year. Keep your eyes peeled on this mars site, it will be the primary location of new information about the mission. I doubt if they find water on Mars though...