Vesto Slipher was not well known, but his groundbreaking observations helped uncover one of astronomy’s most fundamental ...

Jupiter reaches opposition; meanwhile, the star Canopus shines bright and the constellation Pictor offers many gems to view.

Dark matter does pervade the solar system like an invisible fog. We just lack the means to measure its effects on solar ...

Jupiter reaches a stunning opposition, Mars is brilliant, Saturn and Venus light the evening sky, and Mercury rises before ...

Our sister planet is thought to have once been a habitable world, but a new study could change that narrative and alter the ...

In this episode, Dave Eicher invites you to observe the Moon passing by Saturn on the evening of December 7. Both objects at ...

The James Webb Space Telescope (JWST) shows off its infrared capabilities once again in new imaging of the well-known ...

Check out the newest telescopes, accessories, books, and more from the top brands in the industry this December.

New models using Voyager 2 data show that separate layers in the planets’ mantles could be creating disordered magnetic ...

Open star clusters sparkle as Luna and Venus line up and Jupiter’s moons jockey for position in the sky this week.

The Moon also offers a handy site for an offworld seed repository of Earth’s plant life, much like the Svalbard Global Seed ...

Within the next decade, the agency believes its commercial partners can develop vehicles to land a lunar rover and habitat on ...