April 21: Could this be your last glimpse of Comet PanSTARRS? The Lyrid meteor shower peaks this morning with minimal moonlight to interfere. The shower’s radiant — the point from which its meteors ...
Credit: X-ray: NASA/CXC/SAO; ESA/XMM-Newton; Optical HST: NASA/ESA/STScI; Optical Ground: Deep Space Remote observatories/B. Fera and S. Mandel; ESO/VLT As odd couples go, it’s tough to beat the ...
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 ...
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, ...
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 ...
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 ...
NASA’s Lucy spacecraft visited the asteroid 52246 Donaldjohanson on April 20, 2025, coming within 600 miles (920 kilometers) of the object located in the inner region of the asteroid belt between Mars ...
When Duke and Young hit the regolith, it marked the first time that astronauts had set foot in the rugged lunar highlands. Apollo 16’s landing site was Descartes, a region some 7,400 feet (2,250 ...
Exciting planetary action takes place this month. Venus and Uranus vie for attention and lie close to each other in late April. Jupiter offers a lot to observe through a telescope, particularly events ...
The countdown has begun. The crew is ready. And barring any last-minute hiccups, four astronauts on Wednesday will begin a journey that sends them farther from Earth than any human has gone before.
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 ...
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