Between 50 and 1,000 kilometers above our heads is the ionosphere, a layer of Earth's upper atmosphere consisting of charged particles: ions (atoms that have gained or lost a negatively charged ...

The curious minds at What If explore the catastrophic impact if Earth's core were to suddenly stop spinning.

A pair of European satellites have created the first artificial solar eclipses through precise and fancy formation flying.

Two satellites’ highly precise alignment allows scientists to study the sun’s outer atmosphere like never before ...

Nernst's theorem—a general experimental observation presented in 1905 that entropy exchanges tend to zero when the ...

In Antarctica, scientists using the ANITA experiment detected unusual radio signals emanating from within the Earth, defying ...