Is String Theory Strung Out?

Scalars, vectors, and tensors come up all the time in physics. They’re more than mathematical structures. They help describe the Universe.

Since the mid-1960s, the CMB has been identified with the Big Bang’s leftover glow. Could any alternative explanations still work?

Our classical intuition is no good in a quantum Universe. To make sense of it, we need to learn, and apply, an entirely novel set of rules.

On November 25, U.N. members will meet in South Korea to cap off a series of meetings aiming to reduce global plastic pollution.

The most massive early galaxies grew up faster, and have more stars, than astronomers expected, according to JWST. What does it all mean?