Simulations reveal that Jupiter’s rapid growth disrupted the early solar system, creating rings where new planetesimals ...

New evidence shows that, far beyond Pluto, there may exist a hypothetical planet referred to as Planet X or Planet Nine.

Explore how many Earths could fit inside each planet in our solar system. Donald Trump's $2,000 checks could be paid to 150 ...

For many, space travel is unrealistic – spaceships are expensive, and interplanetary exploration doesn’t fit in with a 9-to-5 ...

How fast and in which direction is our solar system moving through the universe? This seemingly simple question is one of the ...

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

Researchers analyzed nearly half a million nearby star systems to understand how giant planets fare as their stars expand into red giants.

Using data from NASA’s TESS mission, scientists can estimate the size (radius) of potential planets orbiting distant stars. However, to verify that these objects are truly planets and not low-mass ...

The rare comet 3I/Atlas has been spotted again after several weeks, this time missing its glowing tail — here’s what ...

NASA found what looked like a planet, but its behavior was bizarre. Turns out, Einstein saw it coming, 88 years ago.

On Sunday, NASA's Escapade, a collaborative effort among the space agency, UC Berkeley and Jeff Bezos' Blue Origin, will ...

Electricity demand will rise much faster than overall energy growth in the coming decades, according to a new report by the ...