A small asteroid zoomed past Earth closer than most satellites last week — and astronomers didn't notice it until hours later. The surprise asteroid encounter occurred at 8:47 p.m. EDT on Tuesday, ...

A 5-mile-long stretch draped across the South Pole recently caught the attention of scientists. Accommodating nearly 30 million cubic kilometers of ice and almost 60% of Earth’s fresh water, this ...

Parts of icy Antarctica are turning green with plant life at an alarming rate as the region is gripped by extreme heat events, according to new research, sparking concerns about the changing landscape ...