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 ...

One of the greatest polymaths of all time and the archetypical Renaissance man, Leonardo da Vinci was born April 15, 1452, in Italy. Despite no formal education beyond elementary school-level lessons ...

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 ...

Rising levels of carbon dioxide in our atmosphere aren’t just affecting climate on Earth — they could also make weather in space more dramatic, says new research. A team led by scientists from the ...

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 ...

A series of powerful observations has made it clear that our universe has expanded for billions of years, emerging from the hot, dense state we call the Big Bang. Over the past several decades, new ...

If you stargaze on a clear winter night, it’s hard to miss the constellation Orion the Hunter, with his shield in one arm and the other arm stretched high to the heavens. A bright red dot called ...

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 ...

For thousands of years, ancient societies all around the world erected massive stone circles, aligning them with the Sun and stars to mark the seasons. These early calendars foretold the coming of ...