Astronomers have discovered an alien world that defies every planetary rule with its massive size, low density, and tilted ...

When astronomers pointed the James Webb Space Telescope (JWST) at a faint object orbiting a distant star system, they weren’t ...

A newly discovered comet is rapidly brightening, says scientists, and it will be reaching its closest point to Earth soon.

Using the James Webb Space Telescope's infrared camera, scientists have captured the gigantic jet blasting out of M87* in a ...

Stars often fall into black holes, and now it seems the opposite can also occur, producing an extra long-lasting explosion as ...

These are gigantic masses of material, directly affecting the magnetic field. They’re called Large Low-Velocity Provinces ...

Webb Telescope detected a possible direct collapse black hole between two merging galaxies called the "Infinity Galaxy." ...

Reionization is thought to have been driven by ultraviolet light produced by both early stars and active galactic nuclei ...

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

A pair of Sydney Ph.D. students helped sharpen the view of humanity's most powerful space observatory—without leaving Earth.