An explosion powerful enough to destroy millions of trees should have left behind a giant crater. Instead, when scientists ...

On June 30, 1908, a giant fireball exploded over the forests of Tunguska in Siberia. The impact leveled hundreds of miles of ...

Halley’s Comet is one of the most famous visitors in our Solar System. It is a massive, peanut shaped object made of ice, ...

June 30 marks Tunguska, Congo independence, and Soyuz 11, plus events from Hernán Cortés to Tower Bridge, Hitler’s purge, and ...

The Tunguska space object was most likely a fragment of a comet’s icy nucleus, which turned into a cloud of water vapor at the moment of the blast, expl ...

This year’s Asteroid Day has planned events worldwide and online. It acts as a reminder about advances in planetary defense.

Around 7:15 am on June 30 in 1908, during the reign of Tsar Nicholas II, an object from space entered Earth's atmosphere over ...

Is that a fresh New Glenn booster by the pad?

A University of Iowa-led physics team has detailed the extreme expansion of a magnetic cloud that originated from a huge, gaseous explosion on the sun. In a new study, the researchers describe the ...

A small body in the Kuiper Belt, beyond Neptune, has exhibited an atmosphere. The last time astronomers found an atmosphere ...

Casey Alexander was serving as a sniper in Iraq when a Christmas Eve explosion in 2007 changed the course of his life. Now, ...