But that doesn't necessarily mean planets are perfect spheres. "We call them round, but they're not really perfectly round, including our own Earth," Amirhossein Bagheri, a planetary science and ...

We currently know of more than 5,800 planets beyond the solar system, but we've only found the tiniest fraction of the exoplanets that astronomers think lie elsewhere in the universe.

A new Big Bang model does away with speculative elements, putting gravitational waves at the forefront of the creation of ...

For every Solar System like ours, there may be thousands of planets without stars to orbit.

Gravity not only holds us firmly to the ground but also anchors oceans, keeps the atmosphere in place, and binds planets and ...

Chemistry in the first 50 million to 100 million years after the Big Bang may have been more active than we expected.

HIGH above us in the distant reaches of space lie planets of every shape, size and colour. But just how many are in the universe, and what is the nearest planet to Earth?

But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

TESS, the Transiting Exoplanet Survey Satellite, will scan the universe to find exoplanets and whether there is life on any of those planets.

There may be many Earth-like planets scattered around the universe, a study has suggested, raising the possibility that other habitable worlds are out there—and that life may have evolved on it.