A NASA astronaut and two record-setting Russian cosmonauts are set to head back to Earth on Monday (Sept. 23), and you can ...

Right now, south of the equator, amateur astronomers are watching a comet that's just emerged from behind the sun. Soon, it ...

Astronomers and sky watchers have their fingers crossed that an approaching comet could put on a nighttime show on Earth next month, but it’s already strutting its stuff for those in space.

NASA astronaut Matthew Dominick got a front row seat to Comet Tsuchinshan-ATLAS from the cupola on the International Space ...

Comet Tsuchinshan-ATLAS originated from the Oort Cloud, a bubble of ice and dust that surrounds our solar system. It was ...

A video filmed by NASA astronaut Matthew Dominick shows a rare glimpse of Comet Tsuchinshan-ATLAS as seen from the International Space Station.

SpaceX owner Elon Musk reiterated his call for becoming a spacefaring civilization. He said, “One of these days, a large ...

Unistellar, a pioneer in intelligent telescopes, is once again mobilizing its entire community for a participatory ...

The final hurdle for Tsuchinshan-ATLAS to surmount will come on the afternoon of Sept. 27, when it arrives at perihelion — the closest point in its orbit to the sun.

A passing star may have kicked the weird moons of giant planets like Jupiter and Saturn into place, new research suggests.

The big attractions of our column today are a small eclipse of an especially big harvest moon Tuesday night and the arrival ...