Astronomers have discovered a new member of a rare and mysterious class of solar system objects known as sednoids — a subset of extreme trans-Neptunian objects (ETNOs) with exceptionally distant, ...

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 ...

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 ...

Trained as a Soviet Air Force pilot from the age of 15 and a 1959 graduate of the Zhukovsky Air Force Academy, Vladimir Komarov piloted Voshkod 1 in 1964 – the first multi-human-passenger space ...

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 ...

Karen Meech doesn’t spend a lot of time digging through Earth’s rocks. An astronomer by trade, she is usually behind the telescope, investigating comets and looking for hints about how Earth got its ...

In less time than it takes to snap your fingers, the universe flashed into existence. Cosmogenesis is the breathtaking story of how this happened. It includes, in its later moments, the creation of ...

Mercury, Venus, and Saturn put on an early-evening display in the west, while Jupiter dominates the rest of the night. Jupiter features many events involving its four major moons that are well worth ...

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 ...

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.