The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

That same cloud gave rise to our entire solar system, including our star, the sun. Keep reading to learn more about Earth's different layers, its atmosphere, and what makes the "blue planet" unique.

Astronomers finally spotted evidence of auroras on Neptune after years of searching, raising new questions about the planet.

It is widely believed that Earth's atmosphere has been rich in oxygen ... Eiichi Tajika from the Department of Earth and Planetary Science at the University of Tokyo. "It likely took some massive ...

Planets can be extremely hot when they are born, and new computational experiments show that such planets would have an atmosphere composed of a homogenous mixture of hydrogen and water. As the ...

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

It is widely believed that Earth's atmosphere has been rich in oxygen ... Eiichi Tajika from the Department of Earth and Planetary Science at the University of Tokyo. "It likely took some massive ...

So Sato and her team turned to the Ensemble Mars Atmosphere Reanalysis System (EMARS ... comparisons in atmospheric science. Mars' similarity to Earth in terms of rotational speed and axial ...

This is thanks in large part to its status as the only other planetary body in the solar system known to host an atmosphere ... Earth and Planets Laboratory of the Carnegie Institution for Science ...

Learn more about a massive show of red sprites in South Asia — an outburst that included over 100 individual flashes of red ...