This is called the “heat death” of the Universe, but you can think of it instead as the death of heat. There will be no more ...

A new underground facility called DUNE, which will accelerate particles for 800 miles between Illinois and South Dakota, ...

The atmosphere, a thin veil of molecules enveloping Earth, reaches about 20 miles (32 kilometers) above the planet's surface.

2024 was a big year for space science in many ways ... this is the force that drives the acceleration of the expansion of the universe. This phenomenon is separate from the early inflation ...

Astronomers have released a set of more than a million simulated images showcasing the cosmos as NASA's upcoming Nancy Grace ...

Now that we see the expansion of the universe is accelerating, adding in dark energy as a cosmological constant could neatly explain how space-time is being stretched apart. But that explanation ...

Explore 9 cosmic mysteries, from galaxy formation to dark energy, the Big Bang, and life beyond Earth. Discover the ...

While monitoring the distance to Type Ia supernovas, two separate teams found that not only is the universe expanding but that this expansion is also accelerating. Dark energy was introduced as a ...