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

By combining JWST and Hubble data, an unprecedented high-resolution photo of Vega shows an extremely smooth and rare disk.

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 ...

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

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

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

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

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 ...

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

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