Betelgeuse, the red supergiant that marks Orion’s shoulder, has entered its dimmest phase in recorded history, sparking ...

An international team, including astronomers from Keele University, has performed a unique cosmic test to measure the mass of ...

“They appear moments after a lightning strike—a sudden reddish flash that can take a range of shapes, often combining diffuse ...

Astronomers from the Center of Astronomical and Space Education in Moscow report the discovery of a new star, which turned ...

Red-light devices are all over social feeds and make enormous promises. From the many, we find the few that are actually worth your commitment, time, and money.

Rare red sprite spotted by astronaut Nichole Ayers from the ISS Sprites flash high above storms and vanish in just ...