Our solar system has eight planets, four of which move in slightly different elliptical orbits which are tilted compared to ...

Journey beyond Neptune to uncover the frozen, mysterious worlds that challenge everything we thought we knew about the solar ...

At a young age, we're told how the sun warms Earth and makes life possible. That idea sticks with most of us for life. But ...

Nearly a century after Pluto’s discovery, astronomers are still hunting for mysterious planets beyond Neptune - including a ...

In a surprising twist to our understanding of exoplanetary systems, astronomers have uncovered three Earth-sized planets ...

Andalusian scientists discover a rare system where three Earth-sized planets orbit two stars, reshaping theories on how ...

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

If you've ever wondered why we are here, then you can thank Jupiter for part of the answer. A new study from Rice University ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

The team identified planets around three stars, including TOI-5799c, which may have an atmosphere and conditions suitable for liquid water.

The asteroids are as large as around 75 and 91 feet in diameter, according to the Center for Near Earth Object Studies.

Not long after, it will undergo gravitational collapse and blow off its outer layers, leaving behind a dense remnant known as ...