Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A ...

With water being so important to life on Earth, scientists often look for it on exoplanets. But some of those worlds might ...

A newly discovered space rock zoomed safely by Earth on Wednesday (Oct. 15) at only about a quarter of the average distance ...

A newly discovered dwarf planet could hold the key to unlocking the mysteries of our solar system’s outer reaches — but what could it mean for humanity's future in space?

The Earth now has another moon to tag along during its orbit around the Sun. Astronomers found out that the Earth has two ...

Millions of years before blue oceans and wandering continents, the Earth in its early days was a molten, tumultuous planet — ...

Mars’ north polar vortex locks its atmosphere in extreme cold and darkness, freezing out water vapor and triggering a ...

Astronomers have spotted heavy water in the disk of a young star for the first time. What’s wild is that this water seems to ...

When a Mars-sized meteorite slammed into Earth billions of years ago, the impact completely reset any and all chemical ...

Alfreðsson told RUV, Iceland’s national public broadcasting service, that the mosquitoes were the first ever spotted on ...

The first picture of a planet outside our solar system may actually depict a swirl of space dust, a new study suggests.

Astronomers have discovered a small asteroid that has been quietly accompanying Earth on its journey around the sun for the ...