Dark dwarfs, stars composed of dark matter, may be the optimal objects in which to finally discover physical dark matter in the real world.

Researchers have found clouds of cold gas embedded deep within larger, superheated gas clouds—or Fermi bubbles—at the Milky ...

That’s exactly what unfolded in a project led by Dr. Veselin Kostov of the SETI Institute and NASA’s Goddard Space Flight ...

Bechtol and his fellow scientists hope they can learn more about the universe than all of scientific progress has allowed in ...

Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...

It's the so-called "Milky Way season" in the Northern Hemisphere. Here's everything you need to know about viewing the galaxy ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

Summer’s brightest stars appear, echoing these Earth-bound lights, beginning around 9:20 p.m. through mid-month.

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...