This potential sample of Earth’s early crust is the subject of a long-standing debate among geologists: is it the world’s oldest rock, or merely extremely old?

Scientists agreed the rocky outcrops in a remote part of Quebec, Canada, were ancient. But were they really Earth’s oldest? New research suggests they are.

On these days the Earth will be measurably—and, so far, unaccountably— accelerating its rotation, shaving from 1.3 to 1.5 milliseconds off of the usual 24 hours the typical day gets.

An invisible molecular cloud that could shed light on how stars and planets form has been detected surprisingly close to Earth. Named Eos after the Greek goddess of the dawn, the cloud of gas ...

On July 10, the shortest of 2025 so far, Earth completed its daily spin 1.38 milliseconds faster than usual, per data from the International Earth Rotation and Reference Systems Service (IERS).

A 2023 study showed a day was approximately 19 hours in Earth's early history. July 5, 2024, was the shortest day ever, 1.65 milliseconds shorter than the usual 86,400 seconds, said MIT ...

For context, Earth's "normal" or background extinction rate is incredibly low: estimated to be between 0.1 and 1 species per 10,000 species every 100 years. This natural turnover is a part of ...

April brings us Citizen Science Month and Earth Day —that means it’s the perfect time to get outside, explore nature, and even help real scientists with their research! You don’t need to be an expert, ...