A solar eclipse recorded in ancient China more than 2,700 years ago is helping scientists refine measurements of Earth’s rotation and investigate the Sun’s past behavior.

It's well known that spaceflight causes muscle atrophy and other biological changes in reduced gravity, and especially in ...

NASA’s Parker Solar Probe completed its 27th close approach to the Sun in March 2026, gathering data from the corona to ...

Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that direction depends on where you are.

Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path.

An illustration of the collision. (Andy Tzanidakis) A distant star whose light suddenly flickered like a guttering candle has ...

The Sun is not nailed to the center of the solar system. It moves, wobbles, and traces a small loop through space, tugged by ...

But new research suggests a new player is making an impact: us. By studying foraminifera, tiny single-celled marine organisms that leave behind fossil shells, a team of researchers from the University ...

Anastasios (Andy) Tzanidakis was combing through old telescope data from 2020 when he found an otherwise boring star acting ...

A strange flicker from a star 11,000 light-years away reveals evidence of two planets crashing together in a rare cosmic ...

Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...