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 ...

Shrinking lakes in Tibet likely woke up long-dormant tectonic faults, a new study finds. The findings strengthen the link ...

New potential climate crisis just dropped.

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

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

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as ...

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

A new study analyzes three asteroid and two meteorite samples to see if space rocks smacking into Earth could’ve helped ...