Reports on two studies that propose the 1908 Tunguska explosion in Siberia to be caused by an asteroid instead of a comet. Asteroids entering Earth's atmosphere at hypersonic velocities; Study by Jack G. Hills and M. Patrick Goda of nuclear detonations in the atmosphere during the 1940s and...
On 27 December last year, astronomers using the ATLAS survey telescope in Chile discovered a small asteroid moving away from Earth. Follow up observations have revealed that the asteroid, 2024 YR4, is on a path that might lead to a collision with our... asteroids tunguska event Asteroid Impac...
DART spacecraft: asteroid crashOn September 26, 2022, NASA intentionally crashed the DART spacecraft into the asteroid Dimorphos to try to change the asteroid's orbit slightly. It was a test of technology that could protect Earth from potential asteroid impacts in the future. The video shows ...
As the asteroid exploded, much of its energy was funnelled downwards towards the surface, say scientists at the Sandia National Laboratories. “There’s actually less devastation than previously thought, but it was caused by a much smaller asteroid,” says Mark Boslough. “That such a small obj...
Asteroid or Comet The composition of the Tunguska body remains a matter of controversy. In 1930, the British astronomer F.J.W. Whipple suggested that the Tunguska body was a small comet. A cometary meteorite, being composed primarily of ice and dust, could have been completely vaporized by ...
Impacts of asteroids on the Earth can vary in severity from "largely unnoticed" to "devastating". The size of the object incoming to the atmosphere can vary significantly, with the Tunguska asteroid (or comet) being relatively small, at only about 100 m (330 ft) in diameter....
Chyba, C., Thomas, P. & Zahnle, K. The 1908 Tunguska explosion: atmospheric disruption of a stony asteroid.Nature361, 40–44 (1993). https://doi.org/10.1038/361040a0 Download citation Received22 September 1992 Accepted09 December 1992 ...
Google Share on Facebook Tunguska Thesaurus Encyclopedia Wikipedia Tun·gus·ka (to͝ong-go͞o′skə, to͞on-) The name of three rivers of central Russia. TheUpper Tunguskais the lower course of the Angara River. TheLower Tunguskaflows about 2,990 km (1,860 mi) north and west to...
The Tunguska asteroid event was so unusual that witnesses believed it was a visitation from a vengeful god. 10 Bizarre Natural Disasters | The Daily Beast | June 1, 2010 | THE DAILY BEAST British Dictionary definitions for Tunguska Tunguska / (Russian tunˈɡuskə) / noun any of three...