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

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

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 ...

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

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

Transits, occultations, eclipses, and shadow transits of the jovian moons are perfect events for telescopic viewing.

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

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

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

Are you in the historic city? Drop into 605 Chestnut Street to find a store that brings the entire universe right into your ...

The giant planet hasn’t been this bright in a decade, and it reaches opposition December 7. Now is the time to get out and ...