Using one spacecraft to block the Sun and another to observe, the pair will fly in tandem with millimeter-level precision.

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.

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

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 ...

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 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 ...