After passing south of Mars late on the 19th, Mercury passes 0.5° south of Saturn at 4 A.M. EDT this morning. Mars will later pass 1.3° north of Saturn at 2 P.M. EDT. This trio of planets congregates ...

The young cluster Pismis 24 lies at the heart of the Lobster Nebula (NGC 6357) in Scorpius. The brilliant stars rank among the hottest and most massive in our galaxy. Tens of thousands of background ...

New Moon occurs at 7:52 A.M. EDT, leaving the sky pristine all night and setting the stage for a possible sighting of the zodiacal light after dark. This ethereal glow is generated by sunlight ...

Our attention is back on Jupiter in the west this evening, though, as Ganymede finally reaches the planet’s eastern limb and begins a transit overnight. First, though, Io is completing another transit ...

Celestron’s Weatherproof Telescope Cover protects the company’s scopes as large as 11 inches from the effects of the elements. The aluminum-laminated cover measures 57.9 by 70.1 inches (147 by 178 ...

Yes, groups are making plans, but addressing the trash problem on the Moon is surprisingly complex. Currently, organizations are looking at the problem through three different lenses: preservation, ...

While Comets Wierzchoś and Tempel 2 are faint, there’s a breakout star in the early-morning sky that’s cracked naked-eye visibility: Comet C/2025 R3 (PanSTARRS). Recently recorded at mid-5th magnitude ...

The Orion spacecraft will be visible, if challenging, from the U.S. early on the morning of Friday, April 10. Here's how to ...

If you’re up after midnight on the 9th in the Central time zone (early-morning hours of April 10), you can catch the start of another shadow transit this week at Jupiter. The giant planet remains in ...

The crew was overcome with emotion as they nominated the name Carroll for a crater "in a bright spot on the Moon." ...

Yesterday, the four-person Artemis 2 crew completed the first crewed lunar flyby since Apollo 17 in 1972, passing within roughly 4,067 miles of the lunar surface before turning back toward Earth. The ...

Four astronauts have flown around the Moon today, the first crewed lunar mission since Apollo 17 in 1972. The seven-hour flyby took them farther from Earth than any humans in history — roughly 252,000 ...