Interstellar visitor 3I/ATLAS has returned to Hubble’s field of view, and the fresh images are forcing astronomers to rethink ...

Comet C/2025 R2 (SWAN)'s backdrop is dominated by the Eagle Nebula — a vast cosmic structure of dust and hydrogen-rich gas ...

NASA scientists are sounding an alarm that would have been unthinkable a decade ago: the same commercial satellite ...

For the first time, astronomers have observed ultra-fast winds emerging from a black hole in a distant galaxy, shedding new ...

Most scientists agree the prolonged flash likely occurred when a black hole ate a star, but two other ideas can't be ruled ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

NASA’s Hubble Space Telescope captured a deeper look at interstellar comet 3I/ATLAS, with its Wide Field Camera 3 instrument, ...

New images from ESA's Juice probe and Hubble reveal a rare double tail on interstellar comet 3I/ATLAS as it approaches Earth ...

Astronomers have already warned that SpaceX's Starlink satellite network contributes to blemishes on images from ...

The solar system's oddball planet has some pretty odd moons, too. The first infrared spectra of Uranus's small inner moons, ...

R esearchers have calculated one of the most precise estimates for the expansion rate of the universe today, and it turns out ...

Wonder Bound, the product of a collaboration between Johns Hopkins University, the Space Telescope Science Institute, and the ...