Where does Earth end and space start? The simple question doesn't have a simple answer. Is it the Karman line, 100km above Earth?

Solar flares can reshape exoplanet atmospheres within days, affecting temperature, winds, and potential habitability.

Just because we can find ozone in the atmosphere of other planets doesn't mean there's life. Ozone is a sign of life on Earth, but its detection on Venus shows that it can also be produced ...

The Thermosphere is known as the hot layer of the atmosphere with a temperature up to 4,000 degrees. It’s thin layer, lack of gas molecules, swelling and sinking air causes the temperature to soar.

A thinner thermosphere means that satellites and debris in low Earth orbit stay up longer, increasing the risk of collisions. These changes also affect radio signals and GPS systems.

The layers of the atmosphere shown to scale and a discussion of what happens at each layer. The layers in order from the ground up: Troposphere, Stratosphere, Mesosphere, Thermosphere, and the ...

Low-Earth orbit includes orbital paths at or below 1,200 miles from the surface. The team examined altitudes in the thermosphere between about 125 and 620 miles above the Earth.

Ionosphere is characterized by a distinct layer of atmosphere and extends from 80 km to 1000 km above the earth’s surface (includes thermosphere and parts of mesosphere). This layer uses solar ...

The International Space Station is an engineering feat that has led to countless scientific discoveries. Like the thousands of satellites in orbit, it manages to stay up in the atmosphere.

CAPE CANAVERAL, Fla. (AP) — Four astronauts are back on Earth after a space station mission that lasted almost eight months. A SpaceX capsule carrying the crew parachuted into the Gulf of Mexico ...