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

When it comes to planets in our Solar System's habitable zone, one world is too close to the Sun, another is too far and ...

Scientists have discovered the strongest evidence yet of a rocky planet with an atmosphere outside the solar system, challenging previous notions that small planets that orbit closely to their stars ...

Scientists may have discovered an atmosphere on a distant planet. Astronomers at NASA used the James Webb Space Telescope to detect evidence suggesting that the rocky planet called TOI-561 b, aka ...

The interstellar comet 3I/ATLAS reaches its closest point to Earth on Dec. 19, allowing close study with no threat to the ...

The Amazon is facing a hotter, drier future, with rising drought stress threatening forests that help regulate Earth’s ...

We know about fossils and rocks, ice cores and seabeds... but it turns out the Earth has been storing data - on climate, ...

A study of the interstellar comet 3I/ATLAS reveals surprising characteristics: traveling at 57 km/s, it challenges ...

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. The orbiter, one of three zooming around Mars’ atmosphere, had been working as expected before it ...

Looking back one month after this year's UN climate talks, a British charity says that COP30 failed to protect animals and ...

After a year-long renovation, the Michigan Science Center reopened its planetarium Friday, showcasing technology upgrades and ...

Professor Brian Cox debunks rumours that the interstellar object 3I/ATLAS is an alien spacecraft, explaining why the 7-billion-year-old comet is a 'fascinating' natural phenomenon.