It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

Nearly a century after Pluto’s discovery, astronomers are still hunting for mysterious planets beyond Neptune - including a ...

NASA's virtual journey to the event horizon of a supermassive black hole The supermassive black hole of Phoenix A, the ...

Amazon plans to launch over 80 missions containing some 3,000 spacecraft. Leo has had six launches so far, including three ...

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

When the James Webb Space Telescope detected potential biosignatures in the atmosphere of K2-18 b last year, the discovery ...

Get ready to rock ‘n’ roll! The second New Moon of fall occurs on November 19 Pacific time and November 20 Eastern time. The ...

Project Kuiper, a rival to SpaceX's Starlink, has been officially renamed as Amazon Leo after several successful satellite ...

The initiative of Amazon is likely to give competition to Elon Musk's Starlink, which is also a satellite internet facility provided by SpaceX that uses a constellation of thousands of cin low Earth ...

Our solar system has eight planets, four of which move in slightly different elliptical orbits which are tilted compared to ...

If an antimatter meteor came into our solar system, we’d definitely know about it, says one reader, especially if it hit the ...