Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 


Forgot your password?
Close
typodupeerror
×
NASA

Submission + - Antarctic ice sheet melt accelerating 1

Submitted by OriginalArlen
OriginalArlen writes: The rapidly diminishing extent of Arctic sea-ice has been widely covered here and elsewhere. Now NASA scientists using satellite data have published a paper in 'Science' demonstrating increased melting around the margins (mostly) of the Antarctic ice sheet. This is potentially much more serious, as the margins act as barriers, preventing the much larger land-borne ice-sheets sliding off the continent into the sea — causing a catastrophic 4-6m rise in sea-levels.

Comment Re:The next boogeyman? (Score 2, Insightful) 77

by keithhackworth (#18067402) Attached to: Lakes Found Under Antarctic Ice Using Space Lasers
I was just wondering that, too. TFA specifically says "they say these lakes lie some 2,300 feet below compressed snow and ice, too deep for environmental temperature to reach," so how the heck does Global Warming affect this? It it was global warming, the ice on TOP would melt - not the ice on BOTTOM! I would more likely suspect it's due to friction of the sliding ice or heat generated from within the Earth (such as volcanic activity).

Keith
Space

China Tests Anti-Satellite Laser Weapon 552

Posted by samzenpus from the the-people's-laser dept.
schnippy writes "U.S. intelligence agencies believe that China has successfully tested an anti-satellite weapon by destroying one of their old weather satellites. The test, if confirmed, would be an order of magnitude more provocative than earlier reports of Chinese blinding lasers being. Arms Control Wonk has a good writeup on what this will mean for U.S. policy."

Space On a Shoestring 257

Posted by kdawson from the hey-gang-let's-build-a-rocketship dept.
An anonymous reader writes, "Three engineering students from Cambridge University plan to send an unmanned craft into space for £1,000 ($1,880) and have just sent a test mission up 32 km for a lot less. Their snaps from the upper atmosphere are impressive, and were taken by a balloon equipped with off-the-shelf technology including GSM text messaging, radio communications, and an ordinary 5-megapixel camera. They now plan to use a similar craft as a launching stage to get a cheap rocket into space." There's also a video of the balloon launch.

Slashdot Top Deals

For God's sake, stop researching for a while and begin to think!

Close