The Greeks added a nearby additional fainter star to the five main stars, so that the six together outline Cassiopeia's Throne. At this time of the year, as Cassiopeia ascends the late evening sky ...

NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) detected the magnetic field streamlines shown over this image of the Keyhole Nebula, part of the larger Carina Nebula, captued by the ...

The Heart Nebula, officially called IC 1805, is a cloud of gas and dust located about 7,500 light-years away in the ...

NASA’s Chandra X-ray Observatory released 25 new images. Since Chandra’s launch on July 23, 1999 it discovers exotic new phenomena and examines old mysteries of our universe.

Beautifully captured by the James Webb Space Telescope (JWST), this image shows interstellar gas and dust lit up by a dead star in Cassiopeia.