A monumental discovery has revealed that an asteroid struck the East Coast of North America roughly 35 million years ago, ...

Today in the history of astronomy, an asteroid flattens 830 square miles of Siberian forest.

I am hiking along the Metacomet Ridge in Greenfield, Massachusetts – a rather steep basaltic structure, modestly less than five hundred feet high and topped by a stately brick tower constructed in ...

Instead, the impact seems to have vaporized the crater’s sulfur-bearing rocks, backing up past work that suggests the event released as much as 325 gigatons of sulfur.