In 1977, NASA launched the twin Voyager spacecraft to probe the outer reaches of our solar system. The space agency was still in its infancy then. But with the triumph of the Apollo Moon landings just ...
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 ...
In 1927, a prescient astronomer named Georges Lemaître looked at data showing how galaxies move. He noticed something peculiar – all of them appeared to be speeding away from Earth. Not only that, but ...
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 ...
The first spacecraft to explore the space beyond Earth orbit was Pioneer 4 in 1959. Twenty-five years later, in 1984, astronomers Carl Sagan and Jill Tarter founded the Search for Extraterrestrial ...
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 ...
After 25 years of planning, six years of data collection, and six more years of analysis, scientists have published a portion of the final results of the Dark Energy Survey (DES) — the largest, most ...
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