How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

In a stellar nursery 460 light-years away, astronomers sharpened old ALMA data and spotted crisp rings and spirals swirling ...

Humans might be worried about what the potentially hazardous, near-Earth asteroid Apophis may do to our planet once it makes a close flyby in 2029. However, what impact will Earth's powerful ...

Rogue planets that range from Mars mass to Earth mass will be future targets for the Roman telescope. As they cross in front of a star and bend spacetime (therefore bending the star’s light ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy ... Objects need to be at least 400 km or so in size to round out via self-gravity, ...

A theory developed to replace dark matter may mean bad news for Planet Nine, a hypothetical as-yet-unseen world in the outer solar system.The odd orbital alignments of icy objects in this region ...

NASA scientists have discovered an electric field encompassing Earth’s atmosphere that is as "fundamental" as gravity -- and could even give clues about possible life on other planets.

Gravity is an energy wave, just like everything else. It has a wave length of 50 billion to 5 trillion light years. It has properties of wave and "particle", although we all know there are no ...

"We estimate that our galaxy is home to 20 times more rogue planets than stars – trillions of worlds wandering alone," David Bannett, co-author of both studies and an astronomer at NASA's ...

One common question people seem to have about the planets' orbits is why the planets are drifting away from the Sun, given the Sun's strong gravitational pull keeping the Solar System together ...

Gas planets are not the only example of celestial bodies that resist diffusion due to gravity. Like gas planets, “stars are just giant balls of gas,” said Knittle. “And they hold together.” ...