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

It seems as if Earth's atmosphere is incredibly thin, wrapped tightly around our planet. In fact, the atmosphere consists of multiple layers, with some scientists of the opinion that the atmosphere ...

While trying to determine if it could use the entire Earth's atmosphere as a massive sensor, DARPA made a highly unusual ...

But contrary to popular belief, Earth's atmosphere has no clear or official boundary. Earth's gravity hugs most of the densest gases close to its surface, including oxygen, nitrogen, carbon ...

In its first 500 million years or so, the Red Planet had a warm atmosphere and liquid-water oceans, just like Earth. But Mars is so small that its internal heat engine burned out early on ...

A new study from MIT found that climate change will make space junk pile up—causing ripple effects across everything from ...

According to scientists, this ambipolar electric field is thought to be just as crucial to Earth as both gravity and ...

It can flow because its particles can change position and slide past each other. Air is in the gas state. It fills a room because the particles are far apart and are free to move position.

What will Earth look like without oxygen in its atmosphere? In about a billion years, the oxygen in Earth’s atmosphere will be lost, rendering the planet uninhabitable for most life-forms ...

This is thanks in large part to its status as the only other planetary body in the solar system known to host an atmosphere about 1.5 times denser than Earth’s and bodies of liquid on its surface.

This is slightly denser than Earth, which has an average density ... studying a planet's atmosphere when that planet transits its star and some of the starlight is filtered through the atmosphere ...