Quote from: yg1968 on 02/15/2013 06:44 PMIt's a good thing in my opinion. Oh, I agree there, but talk is cheap.
It's a good thing in my opinion.
Quote from: Robotbeat on 02/15/2013 05:48 PMLive updates:http://www.guardian.co.uk/science/2013/feb/15/meteorite-explodes-over-russian-urals-live-updatesIncredibly surreal event. All of a sudden, all eyes are on space...Re-linking this image, has a lot of details on the paths of the meteroite and DA14.
Live updates:http://www.guardian.co.uk/science/2013/feb/15/meteorite-explodes-over-russian-urals-live-updatesIncredibly surreal event. All of a sudden, all eyes are on space...
Found a video with a full length meteor going through atmosphere to shockwave impact.Meteorite passes by at 4:40 in video.Shockwave impact at 7:01 in video.Thats a dramatic 2m21s in time delay, or 48km away assuming speed of sound at sea level.The angle is also oblique as well, but we should be able to guesstimate the altitude from that.
Quote from: Eric Hedman on 02/15/2013 06:08 PMLet the hearings begin!http://thehill.com/blogs/blog-briefing-room/news/283427-house-committee-to-hold-hearing-on-asteroids-that-pose-a-potential-threat-to-earthIt does make NASA less of a target for cuts (from just a social/political perspective).This is a legitimate threat to humanity and our nation. As real as North Korea or Iran.Sometimes I really have to wonder about space advocates who talk about how the public doesn't care and either how that's unfair/stupid or how it's inevitable. And when space DOES enter the public's eye, they brush it off, poo-poo it, and usually don't take the opportunity to educate people.
Let the hearings begin!http://thehill.com/blogs/blog-briefing-room/news/283427-house-committee-to-hold-hearing-on-asteroids-that-pose-a-potential-threat-to-earth
What are you doing about it?
With that second image, I'm satisfied they're unrelated.
It doesn't surprise me all that much that threats from NEOs are not talked about that much by space advocates. There is little to no relationship between asteroid threats and the various issues people tent to be passionate about (human spaceflight, Mars, etc.).
Quote from: Jorge on 02/15/2013 07:11 PMWith that second image, I'm satisfied they're unrelated.Hmm, exquisite timing then.
Dare I say around 1 megaton event?
Quote from: ugordan on 02/15/2013 07:15 PMDare I say around 1 megaton event?Unlikely. Estimates have been ~10 tonnes and 20km/s, that gives 'just' 2TJ, little shy of half kiloton worth of KE.
Unlikely. Estimates have been ~10 tonnes and 20km/s, that gives 'just' 2TJ, little shy of half kiloton worth of KE.
No way was this amount of bang produced by 0.5 KT. NASA are now estimating the diameter at 15 m and mass at about 7000 tons.