Sir James Jeans, one of the world’s top mathematicians and an influential physicist and astronomer at the time, advanced his tidal hypothesis of planet formation in 1916. According to this theory, ...

While there is no reason to panic, please be aware that a visitor born near a star other than our Sun is currently passing through our Solar System. This alien visitor has been wandering through space ...

Space scientists look back on three decades of exoplanet discoveries—from rows of massive ‘super-Earths‘ to worlds with ...

Interstellar comet 3I/ATLAS — just the third such object ever confirmed to have entered our solar system — flew past Mars ...

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

On October 6 1995, at a scientific meeting in Florence, Italy, two Swiss astronomers made an announcement that would transform our understanding of the universe beyond our solar system. Michel Mayor ...

Space weather is real, and it has more of an impact on life on Earth than you may think. A new multi-pronged mission intends ...

The comet is one of only three of its kind recorded in history. But others think there could be more to this celestial object.

A recent study introduces a potential new candidate, dubbed Planet Y, inferred from the tilted orbits of distant objects in the Kuiper Belt.

Looking further into the future, even bigger projects are on the horizon. NASA’s Habitable Worlds Observatory, expected in ...

Astronomers have discovered a significant “growth spurt” in a rogue planet outside of our solar system. The free-floating planet is currently consuming gas and dust from its surroundings at a rate of ...