The comet will come closest to Earth on Oct. 20. There's hope that it may become bright enough to glimpse with the naked eye.

The telescope began as a relatively simple device, born out of optical experimentation. It combined a series of lenses and mirrors to collect and magnify light, allowing the user to see far away ...

CAPE CANAVERAL, Fla. (AP) — Telescope observations reveal a growing tail on the comet that’s visiting from another star. Released Thursday, the pictures taken by the Gemini South telescope in Chile ...

When the Earth’s shadow and sunlight scattering transform the Moon into a stunning crimson When the Moon slips into Earth’s shadow and glows red, it’s not just science — it’s spectacle. Across history ...

"We were amazed by the fact that these observatories can detect about 100 black holes just 250 million years after the Big ...

Sagittarius B2, a massive molecular cloud near the center of the Milky Way, is densely packed with stars and complex magnetic ...

Four students in Hillsdale College’s LAUREATES Program revived a radio telescope over the summer at the U.S. National Science ...

From 1985 to 2014, Jean Mueller supported astronomers from around the world who came to Palomar to use its iconic instruments ...

Complete transmittance curves were created for the instrument’s three filters and will serve to calibrate the mission’s ...

NASA’s James Webb Space Telescope has revealed new views of Sagittarius B2, the Milky Way’s most massive star nursery, showing stars, glowing dust and dense clouds in sharper detail than ever before.

OREFIELD, Pa. (AP) — In a romance and adventure worthy of the big screen, a Pennsylvania couple is preserving the past and forging a future as the owners of the world’s oldest operating drive-in movie ...