Watch the crescent moon, Venus and the bright star Regulus align in a rare predawn close conjunction tomorrow.

At just 25, Cecilia Payne-Gaposchkin applied quantum physics to a treasure trove of astronomical observations to show that stars are mostly hydrogen and helium.

Gauging the mass of a black hole is tricky, but astronomers have devised multiple methods to measure the heft of these galactic gluttons ...

Researchers from the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of Sciences have revealed for the first ...

Scientists have used the Gaia Space Telescope to create a 3D map of star kindergartens within the Milky Way, and you can fly through it.

New simulations suggest globular clusters form in multiple ways and point to a mysterious new type of star system that may ...

S284p1 sits at the edge of the Milky Way about 15,000 light-years from Earth. As superheated gas falls onto the star, it gets redirected as narrow beams, confined by powerful magnetic fields. The jets ...

A greedy white dwarf star not far from Earth is devouring its closest celestial companion at a rate never seen before, space ...

Hubble’s latest look at Messier 96 reveals a warped spiral galaxy glowing with rings of stellar birth. The new details shed light on how stars emerge and influence their surroundings.

How is the total mass of the universe calculated? Bob GiddingsGreen Bay, Wisconsin Calculating the total mass of the universe ...

Oracle Corporation's stock surged 36% after management revealed massive new contracts and a backlog jump. Click here to find ...

In Kabul, the capital, health authorities said rescuers were racing to reach remote hamlets dotting an area with a long history of earthquakes and floods. The earthquake was Afghanistan's deadliest ...