Mercury reaches its point of greatest eastern elongation on Friday (July 4), presenting an excellent opportunity to spot the ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Powered by the largest digital camera ever built, Rubin Observatory has taken its first images—millions of stars and galaxies ...

Watch Comet 96P/Macholz brighten as it flies by the sun in these time-lapses captured by the ESA/NASA Solar and Heliospheric ...

From the world watching in horror as the Challenger space shuttle exploded to the Chernobyl nuclear disaster that upended ...