Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

A rare breed of star recently discovered by the Hubble Space Telescope spins faster by feeding on its stellar siblings.

Mars shines brightly this week as it reaches opposition, appearing golden-red in the sky near Jupiter. Look for it in the ...

During his inaugural address, President Donald Trump said he wants 'American astronauts' on Mars. Where does a future Mars ...

Watching the "Star Trek" movies in order of release also places them in proper continuity order, since the original cast ...