Astronomers have uncovered an extraordinarily ancient star that offers a rare glimpse into the universe’s earliest chapters.

Supermassive black holes at the centers of galaxies are one of the most active fields of research in astronomy. In order to ...

Local astronomy experts offer tips on how San Diegans could spot the Artemis II astronauts’ capsule as they splashdown off ...

Look up in April 2026 for Venus and Jupiter, the Lyrids peak, zodiacal light after the new moon, and a short window to catch ...

The decades since scientists confirmed the first planet around another star have been rich in discovery, but it’s rare to see a new solar system as it forms ...

The Elkins Park Skywatchers gathered for a watch party as the Artemis II mission began Wednesday night.

Astronomy and commercial space are often portrayed as being on a collision course, yet their futures are deeply intertwined. As satellite constellations expand, astronomers raise concerns about trails ...

The newly identified star carries almost no heavy elements, making it a rare surviving relic from the universe’s earliest chapters.

Nat” Chris Mentrek invites anyone interested in astronomy to sign up and log on for his free virtual programs this spring.

An icon of New Mexico, the Very Large Array (VLA)  is due for an upgrade. Now years in the making, work on the next-generation antenna is getting ready to roll ...

Description: In 1965, MIT's Lincoln Laboratory saw their Lincoln Calibration Sphere 1 (LCS-1) launched into Earth orbit. It was an empty aluminum sphere and couldn't do any science of its own. But the ...

The September 2025 issue featured “A guide to beginner’s guides,” a reminiscence and description of some the books for astronomy beginners that Contributing Editor Raymond Shubinski recommends or ...