A runaway star that was kicked out of its home cluster, Alpha Orionis is blasting through the interstellar medium at around 67,108 mph (108,000 km/h), leaving a bow-shaped shock wave four light ...

orbiting companion star — or stellar-like object, at least. The researchers aptly nicknamed the proposed object "Betelbuddy," ...

NASA’s Hubble Space Telescope has unveiled astonishing new details about FU Orionis (FU Ori), a young star in the constellation Orion known for its dramatic brightness outburst nearly a century ago.

To find it, point any telescope 9.5° east-southeast of coppery Betelgeuse (Alpha Orionis, the star that marks the right shoulder of Orion the Hunter). NGC 2244 shines at magnitude 4.8 ...