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 ...

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

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.

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

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 ...

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

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