The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

Discover how a giant interstellar cloud known as the solar nebula gave birth to our solar system and everything in it. The solar system as we know it began life as a vast, swirling cloud of gas and ...

This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...

She mapped our solar system's "alternate fate" had it housed an extra planet between Mars and Jupiter instead of the existing asteroid belt. They developed a 3D model that simulates how the solar ...