The comet is now racing away from the sun following a close flyby on Jan. 20.

It may become impossible to fix ...

In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." ...

New potential climate crisis just dropped.

With an estimated 6 sextillion kilograms of the stuff—that’s 21 zeroes by the way—the Earth’s core is another example of why hydrogen is the most abundant element in the universe.

The object is hurtling towards the Earth at a zippy 12,616 miles per hour, according to data from the space agency.

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

Key climate tipping points may be closer than expected, raising the risk of accelerating warming, sea-level rise, and ...

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.