The shells of carbon-rich dust are expanding outward into space at the breakneck velocity of 1,600 miles per second.

The six planets will be visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, ...

When hundreds of eerily perfect circles were discovered on the bottom of the Mediterranean Sea, theories abounded about what ...

A rare group of aligned, star-birthing dwarf galaxies resemble a cosmic string of pearls. Astronomers have discovered a rare ...

While it may be defined as a single organism, Pando is anything but one—sustaining an entire world under its canopy. Here’s ...

A cosmic object spotted by the James Webb Space Telescope has flummoxed astronomers. Now, a research team has studied ...