Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in ...

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Using two infrared space telescopes and a 23-year gap, scientists may have spotted a mysterious, slow-moving object beyond ...

Thanks to JWST, we've learned key details about methanol — a key building block for organic compounds necessary for life — on ...

New data from the James Webb Space Telescope suggests a planet in a faraway solar system was consumed by a star by hurling ...

Eclipses don’t just happen on Earth — they occur all across the solar system. But the objects that block the sun on other ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the ...

A team of astronomers poring through old astronomical data may have seen a candidate for the elusive Planet Nine – a ...

Our sun is wobbling, and this has a huge impact upon the regularity of many of Earth's meteor showers, according to a new ...