Search results for tunguska

Space Exploration Feb 7, 2013

150-foot asteroid will buzz Earth, no need to duck (Update 2)

A 150-foot(45-meter)-wide asteroid will come remarkably close to Earth next week, even closer than high-flying communication and weather satellites. It will be the nearest known flyby for an object of this size.

Space Exploration Jan 30, 2013

Study rebuts hypothesis that comet attacks ended 9,000-year-old Clovis culture

(Phys.org)—Rebutting a speculative hypothesis that comet explosions changed Earth's climate sufficiently to end the Clovis culture in North America about 13,000 years ago, Sandia lead author Mark Boslough and researchers ...

Earth Sciences May 21, 2012

Research team claims to have found evidence Lake Cheko is impact crater for Tunguska Event

(Phys.org) -- Early on the morning of June 30th, 1908, a huge explosion occurred in a remote part of Siberia near the Podkamennaya Tunguska River. So great was the blast that trees were knocked down in neat rows for nearly ...

Space Exploration Mar 27, 2012

Engineers set their sights on asteroid deflection

Pioneering engineers at the University of Strathclyde in Glasgow are developing an innovative technique based on lasers that could radically change asteroid deflection technology.

General Physics Mar 23, 2012

Researchers create computer simulations of primordial black holes striking the Earth

(PhysOrg.com) -- Black holes have captured the imagination of scientists and amateur enthusiasts for years. The idea of some dark entity out there in the far reaches of space sucking up anything and everything that ventures ...

Earth Sciences Aug 9, 2011

A noctilucent masterpiece

Night-shining “noctilucent” clouds create a magical glow in the night skies over Reykjavíc, Iceland in this beautiful photo by Örvar Atli Þorgeirsson, taken on August 6. In the foreground is ...

Space Exploration Apr 7, 2011

Two asteroids passed close to Earth Wednesday

Earth got a double dose of close asteroid flybys on Wednesday, April 6, 2011. Two newly discovered small asteroids both passed within the distance of the Moon.

Astronomy Sep 10, 2010

Objects impacting Jupiter detected first by amateur astronomers

(PhysOrg.com) -- Amateur astronomers using backyard telescopes were the first to detect two small objects that burned up in Jupiter’s atmosphere on June 3 and Aug. 20.

Astronomy Sep 10, 2010

Potential lab in outer space to open for amateur astronomers

Two amateur astronomers who independently observed and videotaped an asteroid striking the giant planet Jupiter on June 3 have opened the possibility, in effect, of a giant research lab in space for planetary scientists.

Astronomy Aug 27, 2010

Sizes for potentially dangerous asteroids

Near Earth Objects (NEOs) are asteroids or comets whose orbits sometimes take them close to the earth's orbit. An NEO could therefore someday collide with the earth -- and there are almost 7000 of them known, with several ...

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