Astronomers have yet to find irrefutable proof for any natural satellites of exoplanets—so-called exomoons—but as ...

Astrophotographer Thierry Legault captured the International Space Station transit the Sun. The NASA astronauts were ...

"With these probability maps, we can push asteroids away while preventing them from returning on an impact trajectory, ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

With Pluto in Aquarius, the focus will be on democracy, technology, and social reform. Expect whistleblowers, reckonings, ...

A natural satellite is simply a celestial object that orbits a planet or a smaller body. Unlike the ones we build and send up ...

Astronomers detected a bright signal, coming from deep inside a dust disc, that is likely newborn planet HD 135344B still ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But mitigating this is its far greater distance, plus the fact that Earth appears much ...

A mysterious space object named 2023 KQ14, nicknamed “Ammonite,” challenges theories about the mysterious and possible Planet ...

But I have learned, by painful personal experience, that there is value in the constant scrutiny of the ordinary and mundane.

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

For all the talk about life across the cosmos, Earth remains the only confirmed example. That single data point makes your ...