At the right point of the orbit and stellar cycle, the star’s chromosphere brightens.

NASA discovers extreme planet: Astronomers are witnessing an alien world's dramatic transformation thanks to the James Webb ...

The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared away other objects ...

The star’s looming death will dramatically reshape the inner solar system, engulfing Mercury and Venus in a fiery sphere. The ...

When the sun dies, it will become hundreds of times its current size and engulf the innermost planets. Earth may escape this ...

A distant, icy body circling the Sun far beyond Neptune has handed astronomers a fresh puzzle. Designated 2023 KQ14 and ...

A pair of giant planets circling a star more than 1,100 light-years from Earth looks almost too bloated to be real. Each ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

A sunlike star next door called Alpha Centauri A may host a huge planet, researchers report in two studies in press in Astrophysical Journal Letters. The planet candidate orbits in its star’s ...

During the height of the Space Race, space exploration occupied a much larger place in American culture and education.