Archaeology, Anthropology and Interstellar Communication
is a free book (PDF) from NASA. The premise is that communication with alien lifeforms will have some (cautious) analogues to interpreting past cultures, and to the work that anthropologists and linguists do cross-culturally. Among the 16 chapters are: Beyond Linear B - The Metasemiotic Challenge of Communication with Extraterrestrial Intelligence; Learning To Read - Interstellar Message Decipherment from Archaeological and Anthropological Perspectives; and, Mirrors of Our Assumptions: Lessons from an Arthritic Neanderthal.
posted by Rumple
on May 23, 2014 -
Carl Sagan wrote, “We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.” But how will humans or our machine representatives fly to the stars? [more inside]
posted by audi alteram partem
on May 1, 2012 -
The Carnegie Institution for Science reports
"a much higher water content in the Moon’s interior than previous studies." For decades, the moon's water content was estimated at less than 1 part per billion; the new estimates range from 64 ppb to 5 parts per million. A scientist at Washington University said, "We can now finally begin to consider the implications—and the origin—of water in the interior of the Moon.”
There's more at NASA
and the BBC
, and the full paper is available at PNAS
posted by Stan Carey
on Jun 15, 2010 -
On October 9th, NASA spacecraft will run into the moon, and on purpose. The Lunar Crater Observation and Sensing Satellite
) and its rocket's Centaur
upper stage will impact the moon, with the goal of sending some of the (possibly present) ice above the lunar surface. Once out of the eternal shade of the moon's south pole, sunlight will break the ice up into H+ and OH- molecules, which can be detected by the Lunar Reconnaissance Orbiter
). The initial impact site was the crater Cabeus A
, but the target was later changed to Cabeus (proper)
, selected for highest hydrogen concentrations with the greatest level of certainty, and for the high-contrast back drop to detect ejecta and vapor measurements. NASA has provided guides for amateur observations of the impact
, a facebook group
, and a Twitter feed
so you don't miss the moment.
posted by filthy light thief
on Oct 8, 2009 -
Instead of liquid water, Titan
has liquid methane. Instead of silicate rocks, Titan has frozen water ice. Instead of dirt, Titan has hydrocarbon particles settling out of the atmosphere, and instead of lava, Titanian volcanoes spew very cold ice.
posted by Pretty_Generic
on Jan 21, 2005 -
An Elevator to the Stars.
The paper of record claims this isn't science fiction, but do we really believe that in ten years we'll be able to build a 60,000 mile long cable capable of supporting 13 ton cargo loads? Would you trust this to take you into asynchronous orbit? (Or maybe you just want to make like Joe Kittinger and jump out at 100,000 feet
posted by alms
on Sep 23, 2003 -