Earlier estimates of its age were around 7 billion years, but a new study suggests it’s much older.

Earth is not only orbiting the Sun it is also traveling through the Milky Way on an enormous galactic journey. In this video ...

The Gaia telescope spotted more than 6,000 sunlike stars, all of which appear to have migrated from the galaxy's center more ...

Over 4 billion years ago, as planets were coalescing around the newborn Sun, our star may have gone on an epic road trip across the Milky Way along with thousands of stellar "twins." And we may owe ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

About 14 million years ago, our solar system sailed through a vast ribbon of gas and baby stars in the Milky Way known as the Radcliffe Wave. A new study traces that journey in detail and asks whether ...

Harvard astrophysicist Avi Loeb says interstellar comet 3I/ATLAS likely comes from the Milky Way's disc, as astronomers ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

The Oort cloud is a shell of icy objects that forms the very outskirts of our Solar System. Recently, a group of researchers discovered that the inner portion of the Oort cloud likely has spiral arms ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...

The Oort cloud is traditionally thought of as a vast shell of perhaps trillions of icy objects encasing our solar system, serving as the final boundary between us and the dark reaches of interstellar ...