In all, there are only 400 known Mars rocks on Earth, comprising less than 1% of all known space rocks on the Blue Planet.

Astronomers claim to have found new evidence supporting a controversial observation that our galaxy is residing in an ...

Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ...

For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of conventional astronomy theory, and is making experts reconsider conventional ...

Our universe just got a lot weirder. From planets with rings larger than the Sun to alien worlds where it rains molten iron or glows magenta, NASA’s latest exoplanet discoveries are challenging ...

Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than in neighboring regions of the universe, astronomers say.

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

Located just 154 light-years away, this planet is nearly twice the size of Earth and orbits a cool red dwarf star. Though not ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...