Some habitable worlds orbiting dead stars could be kept alive for aeons thanks to a quirk of Einstein’s theory of gravity ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

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

Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record ...

Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without ...

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

Would you guess that the Earth is spinning at 1,000 mph around its axis and at the same time hurtling through space on its ...

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

WASHINGTON - Just as Earth orbits the sun, most planets discovered beyond our solar system orbit a host star. But some are out there all by themselves, called rogue planets. While their origins are ...

On October 6 1995, at a scientific meeting in Florence, Italy, two Swiss astronomers made an announcement that would transform our understanding of ...

ESA’s Mars orbiters captured images of the interstellar comet 3I/ATLAS as it passed close to Mars, revealing its bright, hazy ...