If it is a galaxy, it would be the oldest known galaxy in the cosmos, but it could also be a brown dwarf or an early black hole.

About 50 light-years from Earth, a gas giant about half the mass of Jupiter orbits a sunlike star. The discovery of Pegasi 51 b ushered in a new era of exoplanet research.

How could the principle of "radical mundanity" proposed by the Fermi paradox help explain why humans haven't found evidence ...

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It's a plot device beloved by science fiction: our entire universe might be a simulation running on some advanced ...

JWST observations show that early galaxies were chaotic, gas-filled systems rather than stable disks. Researchers from ...

Researchers have moved one step closer to solving one of science’s greatest mysteries—why the universe is filled with matter instead of nothing. Scientists at Indiana University have made a major ...

The method, developed by researchers at the State University of Campinas in Brazil, uses images of dune surfaces to estimate ...