The record-breaking winds are circling the nearby "puffy" exoplanet WASP-127b, and are traveling six times faster than the ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

What if there are thousands of alien empires in the Milky Way, each spanning a few to maybe tens of star systems, chatting, trading, sometimes shooting or ignoring each other politely? And if so ...

A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) ...

With a speed of 9 km per second (33 000 km/h), this is the fastest jetstream of its kind ever measured in the Universe ...