The cosmic record breaker has now been confirmed by astronomers, who see that the James Webb Space Telescope has detected ...

For the first time, scientists have created detailed, 2D maps of the sun's outermost atmosphere. This feat was accomplished ...

Looking for a sky event this week? Check out our full Sky This Week column. December 17: The Moon meets Mercury The Moon ...

Webb traced the light of a dying star, supernova GRB 250314A, from when the universe was only 730 million years old.

The interstellar comet 3I/ATLAS will make its closest approach to Earth this week on Dec. 19, 2025. Here's the latest news ...

While these free events do indeed happen each month, the gathering that's set to sparkle Dec. 20 feels a bit special: It's ...

The first pulsar was discovered in 1967 by Jocelyn Bell Burnell. Finding these mysterious signals forever changed astronomy.

Astronomers using the James Webb Space Telescope report that a powerful gamma-ray burst detected in March may have been ...

An international team of astronomers has uncovered the most unmistakable evidence yet that the powerful jets launched by ...

Mysterious Bright Flashes in the Night Sky Baffle Astronomers Celestial transients shine furiously and briefly. Astronomers ...

Astronomers have found evidence for a possible first-of-its-kind "superkilonova," or a kilonova spurred by a supernova. Such ...

Astronomers at the University of California, Santa Cruz, and UCLA will develop a next-generation instrument for detecting and ...