Search results for tunguska:
Greenhouse theory smashed by biggest stone
Mar 14, 2006 |
2.8 / 5 (1050) |
0
A new theory to explain global warming was revealed at a meeting at the University of Leicester (UK) and is being considered for publication in the journal "Science First Hand". The controversial theory has ...
Space shuttle science shows how 1908 Tunguska explosion was caused by a comet
Space & Earth / Earth Sciences
Jun 24, 2009 |
3.4 / 5 (19) |
15
The mysterious 1908 Tunguska explosion that leveled 830 square miles of Siberian forest was almost certainly caused by a comet entering the Earth's atmosphere, says new Cornell University research. The conclusion ...
Space rock gives Earth a close shave
Space & Earth / Space Exploration
Mar 03, 2009 |
4.4 / 5 (16) |
6
An asteroid of a similar size to a rock that exploded above Siberia in 1908 with the force of a thousand atomic bombs whizzed close past Earth on Monday, astronomers said on Tuesday.
Hubble captures rare Jupiter collision
Jul 25, 2009 |
5 / 5 (6) |
2
For the past several days the world's largest telescopes have been trained on Jupiter. Not to miss the potentially new science in the unfolding drama 580 million kilometres away, Matt Mountain, director of ...
Near miss, but no threat: Asteroid in close pass was smaller than thought, astronomer shows
Space & Earth / Space Exploration
Mar 17, 2009 |
4.5 / 5 (8) |
0
(PhysOrg.com) -- On March 2, an asteroid whizzed past the Earth at a distance of just 41,000 miles -- a near miss by cosmic standards (most communications satellites orbit at a distance of about 22,300 miles from Earth). ...
Tunguska catastrophe: Evidence of acid rain supports meteorite theory
Space & Earth / Earth Sciences
Jul 15, 2008 |
4.5 / 5 (37) |
6
(PhysOrg.com) -- The Tunguska catastrophe in 1908 evidently led to high levels of acid rain. This is the conclusion reached by Russian, Italian and German researchers based on the results of analyses of peat ...
Asteroid Threatens to Hit Mars
Space & Earth / Space Exploration
Dec 21, 2007 |
4.6 / 5 (33) |
4
Astronomers funded by NASA are monitoring the trajectory of an asteroid named 2007 WD5 that is expected to cross the orbital path of Mars early next year. Calculations by NASA's Near-Earth Object Office at the ...
Supercomputers offer new explanation of Tunguska disaster
Space & Earth / Earth Sciences
Dec 18, 2007 |
4.4 / 5 (39) |
11
The stunning amount of forest devastation at Tunguska, a century ago in Siberia, may have been caused by an asteroid only a fraction as large as previously published estimates, Sandia supercomputer simulations ...
Probing Question: Are Asteroids a Threat to Earth?
Space & Earth / Space Exploration
Nov 12, 2007 |
3.5 / 5 (31) |
0
Hollywood thrillers such as Deep Impact helped to jump-start America's interest in knowing what our "deflection strategy" would be if a giant asteroid was on a potentially catastrophic collision course with ...
Research team says extraterrestrial impact to blame for Ice Age extinctions
Space & Earth / Earth Sciences
Sep 24, 2007 |
4.7 / 5 (46) |
0
What caused the extinction of mammoths and the decline of Stone Age people about 13,000 years ago remains hotly debated. Overhunting by Paleoindians, climate change and disease lead the list of probable causes. ...
Dealing with threatening space rocks
Space & Earth / Space Exploration
Sep 20, 2007 |
4.5 / 5 (14) |
0
Every now and then a space rock hits the world's media – sometimes almost literally. Threatening asteroids that zoom past the Earth, fireballs in the sky seen by hundreds of people and mysterious craters which ...
The Tunguska Event--100 Years Later
Space & Earth / Earth Sciences
Jul 01, 2008 |
4.6 / 5 (21) |
3
The year is 1908, and it's just after seven in the morning. A man is sitting on the front porch of a trading post at Vanavara in Siberia. Little does he know, in a few moments, he will be hurled from his chair ...
Researchers will study ways to deflect asteroids
Space & Earth / Space Exploration
May 26, 2008 |
4 / 5 (5) |
2
An Asteroid Deflection Research Center (ADRC) has been established on the Iowa State campus to bring researchers from around the world to develop asteroid deflection technologies. The center was signed into effect in April ...
Asteroid heads for Earth, Russian astronomer claims
Space & Earth / Space Exploration
Oct 02, 2007 |
3.6 / 5 (71) |
6
An asteroid discovered three years ago could be a threat in 2029 when it crosses Earth's orbit, a Russian astronomer said Monday.
Scientists solve mystery of Meteor Crater's missing melted rocks
Mar 09, 2005 |
4.3 / 5 (9) |
0
Scientists have discovered why there isn't much impact-melted rock at Meteor Crater in northern Arizona. The iron meteorite that blasted out Meteor Crater almost 50,000 years ago was traveling much slower than has been ass ...
