Before It's News | Popular Space
Russian Meteor May Have Sibling Asteroids That Pose Threat To Earth, Study Suggests
On 15 February, an 11,000-ton space rock slammed into the atmosphere above Russia, producing the most powerful impact since the Tunguska explosion in 1908 — which may also have been caused by an asteroid — and generating a shock wave that damaged buildings and injured more than 1,000 people. CHELYABINSK, RUSSIA - FEBRUARY 17: A hole, thought to be made by the fragment of the meteor in the ice of Chebarkul Lake is seen on February 16, 2013 some 80 kilometers from Chelyabinsk, Russia. Broken family The researchers propose that these rocks are pieces of a rubbly asteroid that came apart some time in the past 40,000 years. The break-up may have been triggered by stresses from temperature swings as the parent asteroid looped out past Mars and then back towards Venus on its travels around the Sun, says Carlos de la Fuente Marcos.
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