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 ...

That asteroid explosion over Tunguska was 1,000 times stronger than the nuclear bombing of Hiroshima.

This gas loss, called a galactic wind, is likely driven by intense star formation and supernova explosions. When galaxies collide, the encounter can trigger a frenzy of star formation. Huge clouds of ...

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

One night in 1178, five English monks looked up into the summer sky and witnessed a violent explosion on the surface of the moon, writes Dr ...

A massive explosion rocked a Pennsylvania community on Thursday morning, injuring three people and damaging several houses.According to reports from WTAE's ABC affiliate, WNEP, police said a propane ...