Re: What Is Life - and How Do We Search for It in Other Worlds?

Title: Re: What Is Life - and How Do We Search for It in Other Wo Here you go:   http://www.astro.cf.ac.uk/groups/relativity/papers/abstracts/miguel94a.html   http://www.grc.nasa.gov/WWW/PAO/warp.htm   http://www.sffnet/people/Geoffrey.Landis/STL.htp   - Original Message - From: G

Re: How far can radio signals penetrate through ice?

So maybe we can drop a large flat antenna on Icepick's landing site on Europa first, one that can be folded up for the trip and deployed when on the moon's surface.  No, I am not trying to be funny.   But wait - how big will Icepick have to be to receive and send data?   Larry   - Orig

Re: What Is Life - and How Do We Search for It in Other Worlds?

Title: Re: What Is Life - and How Do We Search for It in Other Wo We already have tricorders, they just are not that small, yet.  We are making field-portable prototypes that in theory can detect trace amounts of biomarkers, methane gas, even proteins dissolved in aqueous solution.  Most of the o

Re: How far can radio signals penetrate through ice?

Usually it is by way of Extremely Low Frequencies. The antennae y=used for this are often acres, if not square miles in size.LARRY KLAES <[EMAIL PROTECTED]> wrote: I know this may be under the Classified category, but have submarines found ways to send signals through the ice packs when in the

Re: How far can radio signals penetrate through ice?

If radar worked through ice, it would probably work through water.  Submarines echolocate by sonar, rather than radar.  That should tell you something.  (This, by the way, may be a flaw in Deception Point.  I'd been assuming that the meteorite buried deep in Arctic ice in that novel was dete

What Is Life - and How Do We Search for It in Other Worlds?

I need a “tricorder”—the convenient, hand-held device featured on Star Trek that can detect life forms even from orbit. Unfortunately, we don't have a clue how a tricorder might work, since life forms don't seem to have any observable property that distinguishes them from inanimate matter. F

How far can radio signals penetrate through ice?

I know this may be under the Classified category, but have submarines found ways to send signals through the ice packs when in the Arctic Ocean?  I am just wondering if a similar technique could be used for Icepick so it doesn't have to drag a long cable after itself from the Europan surface.

Titan Calling

Titan Calling How a Swedish engineer saved a once-in-a-lifetime mission to Saturn's mysterious moon By James Oberg LAST JUNE, SCIENTISTS WERE THRILLED when NASA's Cassini probe successfully began orbiting Saturn after a 3.5-billion-kilometer, seven-year journey across the solar system.