A small asteroid, known as 2025 TF, flew over Antarctica on October 1, 2025, at an altitude of only 266 miles.

By combining the power of ground-based and space-based telescopes, astronomers have discovered a new brown dwarf—a type of ...

Telescopes around the world recorded new evidence about what the 3I/Atlas is and what scientists observed about it.

Early depictions of alien planets in science fiction reflected pure imagination — jungles on Venus, canals on Mars, and ...

For the first time ever, astronomers revealed the birthplace of an energetic jet blasted by a newborn star using the Atacama ...

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Brian Lacki has released a set of three prepublication studies attempting to rationalize and measure the odds of a ...

It’s a cosmic puzzle piece that doesn’t seem to belong to any known set. We all know the Moon has a side that always faces away from us, but it turns out that far side might be hiding something ...

Three years into its mission, the James Webb Space Telescope has advanced the search for extraterrestrial life more than any ...

A pairing-off of the brightest planet and a slender crescent moon will be the chief celestial attraction in the dawn sky ...

The comet will make its closest approach to Earth Tuesday, but Monday may be the best evening to see it. Come Monday around sunset, Teddy Kareta plans to ascend to the roof of a building near ...