Science news articles about 'june 30 1908'
Engineering researcher seeks answers to asteroid deflection
... at more than 38 kilometers across. Just 100 years ago, June 30, 1908, an asteroid or comet estimated at 30–50 meters in diameter exploded in the skies above Tunguska, Siberia. Known as ...The Tunguska event
On June 30, 1908, an enormous detonation left an indelible mark near the Podkamennaya Tunguska River in the Siberian region of Russia.