Most galaxies lie in clusters containing from a few to thousands of objects. Our Milky Way, for example, belongs to the Local Group, a cluster of about fifty galaxies whose other large me...

Life on Earth is dominated by photosynthesis, the process by which green plants and some organisms use sunlight at visible wavelengths to synthesize carbon-based nutrients from carbon dio...

Cambridge, MA - Event Horizon Telescope Collaboration Director Shep Doeleman of the Center for Astrophysics | Harvard & Smithsonian will accept the 2020 Breakthrough Prize in Fundame...

The Kepler satellite is famous for its discovery of thousands of exoplanets by continuously and meticulously measuring the brightnesses of over half-a-million stars for the signatures of ...

Blazars are galaxies whose central, supermassive black holes are accreting material from surrounding regions and emitting powerful beams of high velocity charged particles that coincident...

Cambridge, MA - With an 11-hour orbit around its parent star, the hot planet most likely has no atmosphere, and may be covered in dark lava rock, according to data from the IRAC camera o...

Over thirty years ago, the Infrared Astronomy Satellite discovered that the universe contained many extremely luminous galaxies, some more than a thousand times brighter than our own Milk...

Cambridge, MA - Scientists at the Center for Astrophysics | Harvard & Smithsonian have announced the discovery of the most massive star ever known to be destroyed by a supernova expl...

Stars greater than eight solar-masses end their lives spectacularly -- as supernovae. These single-star supernovae are called core collapse supernovae because when their dense cores (at t...

In the last century, astronomers studying the motions of galaxies and the character of the cosmic microwave background radiation came to realize that most of the matter in the universe wa...