Astronomy

NASA’s newest space telescope has unveiled a stunning map of the cosmos in infrared

Celestial transients shine furiously and briefly. Astronomers are just beginning to understand them

Precisely calibrating clocks on Mars is harder than you’d think, because of some extremely esoteric physics

As far as annual meteor showers are concerned, 2025 has saved the best for last. This year’s Geminids are not to be missed

Vaccine controversies, space pollution and puppy power.

A scientist has identified a possible astronomical explanation for the Star of Bethlehem, as described in the Bible

In our topsy-turvy universe, sometimes the farther away an object is, the bigger it seems to be

Proliferating satellites are beginning to harm the science work of the beloved Hubble Space Telescope and other observatories

A technique called interferometry can greatly magnify tiny objects on the sky, and is powerful enough to reveal the surfaces of nearby stars

Comets don’t just orbit our sun. “Exocomets” are common around other stars in the galaxy, too

NASA spacecraft across the inner solar system captured new views of Comet 3I/ATLAS—the third known interstellar object

Although these findings from JWST are yet to be confirmed, they mark the closest astronomers have come to locating the universe’s most ancient stars