The venture, privately funded to start, is now run by the University of Arizona. And today, scientists there are quietly ...

NASA has discovered an interstellar comet that's wandered into our backyard. Luckily, it won't get near enough to be a threat ...

The CRIRES+ instrument on the European Southern Observatory’s Very Large Telescope (ESO’s VLT) has been used to measure the ...

Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astronomers are monitoring an object headed our way that may have wandered over from another star system. Scientists have discovered what might be only the third known interstellar object to pass ...

University of Arizona astrophysicist Erika Hamden takes readers on a romp through a "Weird Universe" in her debut popular ...

The ALMA radio telescope array in the Atacama Desert temporarily halted operations after a rare snowfall blanketed the base ...

CAPE CANAVERAL, Fla. (AP) — NASA has discovered an interstellar comet that’s wandered into our backyard. The space agency ...