Just a few hundred light years from Earth, a swollen red giant is quietly forcing astronomers to rethink how stars seed the galaxy with the raw materials for planets and life. New observations of the ...

A Christmas Tree-shaped star cluster inside NGC 2264 reveals active star formation 2,700 light-years from Earth.

Scientists have discovered a giant cosmic filament where galaxies spin in sync with the structure that holds them together.

When you look up at the night sky, planets seem calm and fixed. But a new study shows that nearby planetary systems can be violent and chaotic. Using NASA’s Hubble Space Telescope, astronomers have ...

Using Georgia State’s CHARA Array, an international team of scientists has uncovered unexpected complexity in how stars explode. Astronomers have obtained images of two stellar explosions, called ...