Astronomers have detected four small planets orbiting Barnard’s Star, one of the closest stars to Earth, at just six ...

Barnard’s Star has fascinated astronomers for decades. At just six light-years away, it is the second-closest single star to our own Sun. Now, two separate research teams have found solid evidence ...

Voluminous clouds of cosmic dust permeate our galaxy, but only recently has software allowed detailed observations of the ...

The four exoplanets orbit Barnard’s Star so closely that their years last only a few Earth days. They are probably rocky and, ...

BL Lacertae blazar shifts between classifications faster than expected. It shows record X-ray activity and challenges current ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it ...

The discovery of the dwarf galaxy Andromeda XXXV --located roughly 3 million light-years away and the smallest yet found in the Andromeda system -- is forcing astronomers to rethink how galaxies ...

NASA’s SPHEREx mission will survey the entire sky in 102 different “colors” of light, offering scientists an unprecedented ...

Galaxies don't float around at random. They line up along strands of cosmic filaments, sometimes stretching millions of light ...