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 ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet ...

For decades, some scientists argued that our solar system showed signs of ancient catastrophe. A missing planet between Mars ...

The world's largest planetary defense drill is underway as scientists prepare for 3I/ATLAs to make its closest pass by Earth ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...

Before the ribbon-cutting for the solar system walk on the Columbia Greenway Rail Trail on Nov. 29, created by WHS Astronomy ...

The mysterious interstellar object 3I/ATLAS may be seeding the worlds of this solar system with the early stages of life, new ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building bodies. The structures often resemble our asteroid and Kuiper belts, hinting ...

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. Here's what we know.

The comet will come much closer to Jupiter in March, zipping within 33 million miles. It will be the mid-2030s before it ...

This temporal lag is a direct consequence of Albert Einstein’s Theory of General Relativity. The rule is simple: the weaker ...