NASA launched a bold mission: crash a spacecraft into a comet using the force of 5 tons of TNT. The result wasn’t destruction ...

It's practically impossible to talk about Mimi Leder's 1998 comet-based disaster film "Deep Impact" without also cursorily mentioning Michael Bay's 1998 comet-based disaster film "Armageddon." ...

Stardust wasn't the only comet mission. NASA's Deep Impact spacecraft slammed a probe into Comet P9/Tem­pel 1 in 2005 and found that the crust was rigid but the layers underneath were weak and ...

Rare Metal The metal iridium, which is similar to platinum, is very rare on Earth's surface but is more common in asteroids and in molten rock deep within the planet. Scientists have discovered ...