Mars may be known as the Red Planet, but under the right cosmic conditions, its skies shimmer emerald with auroras — and for the first time, scientists think they can

Turn your eyes to the east in the early morning hours of Sept. 16 to see the moon conspire with Jupiter and the bright stars of the Gemini constellation to

New research suggests that “little red dots” seen in the early universe may actually be a new class of cosmic object: black hole stars. If this theory is correct, it