The Standard Model of our universe doesn’t match the evidence, in part because of dark energy, a ghostly force pushing the ...

An inexplicably hot, fast-growing cluster of galaxies in the early universe has scientists questioning theories of galactic ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

Astronomers using NASA’s Hubble Space Telescope have spotted something never seen before: a giant cloud of gas and dark ...

The 247th Meeting of the American Astronomical Society (AAS 247) is being held Jan. 4 to Jan. 8 and will feature remarkable ...

The Big Bang Theory remains the most accepted explanation for how the universe began. This documentary explores the science, ...

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole. Parallels in the physics of the universe and that of black holes have led ...

A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.

CT’s 2025 Book of the Year winner on why we need each other—minds, bodies, and souls—as AI proselytizers promise an ...