Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

"Whether this impact was from a micrometeoroid or a piece of space debris, the collision highlights the need for responsible ...

The asteroid, named 2024 VK3, will pass Earth at a distance of about 273,000 miles, just further than the moon's 238,900-mile ...

Tiny grains from asteroid Ryugu are revealing clues to the magnetic forces that shaped the far reaches of the solar system over 4.6 billion years ago. The findings suggest the distal solar system ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...

When you get out past the planets of our solar system and keep going, you will eventually enter the Kuiper belt, which has ...

A tiny puncture discovered in the solar ... small space debris fragments orbit Earth. The European Space Agency (ESA) estimates that 130 million space debris objects 0.4 to 0.4 inches in size ...

The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

Our solar system used to have nine ... discovered another small world called Eris in the Kuiper Belt — a vast ring of icy objects beyond Neptune’s orbit that also happens to be the former ...