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.

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

The early growth of the gas giant carved rings that formed primitive meteorites and shaped the architecture of the inner ...

Theorists have found that a “warm” version of cosmic inflation is consistent with known physics, linking it to the hunt for ...

An international team of researchers led by the Leibniz Institute for Astrophysics Potsdam (AIP) has shed light on a ...