NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

Elon Musk warns that China's solar power generation is rapidly expanding, potentially exceeding the entire US electricity ...

What is dark energy? Why does dark energy seem to be weakening? Is our universe part of a larger multiverse? What lies beyond the boundary of a black hole?The universe seems to be rotating, and if ...

Astronomers have found a remarkable pair of stars that may finally prove a long-debated theory. Described in the journal Nature Astronomy, this duo offers the strongest evidence yet that type 1a ...

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Nuclear power has long been associated with radioactive waste. But as Tim Gregory argues in his compelling book, it might ...

Our universe is filled with particles, such as electrons and protons, which make up all the stuff on our planet and beyond: animals, plants, people, planets, asteroids, stars, gas clouds, and ...

The expansive forces of dark energy are generally thought to be uniform across the entire universe, pushing against all objects equally. However, expansion itself is not uniformly observable.

New hints from one of the most extensive surveys of the cosmos to date suggest that mysterious dark energy may be evolving in ways that could shift how astronomers understand the universe. Dark ...

Dark energy may have a completely unknown aspect of physics acting as an accomplice in its efforts to defy gravity, suppressing the growth of large-scale structures like galaxy superclusters.

If that’s how dark energy works, and it’s indistinguishable from a cosmological constant, it teaches us that the Universe will never run out of energy, as there will always be a finite amount ...