The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...

How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, ...

UChicago-led study analyzes massive galaxy clusters mapped by the Dark Energy Survey, offers new way to probe cosmic laws ...

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

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density – given that the universe contains a lot of relatively empty space, could ...

Unraveling the mysteries of how the world might end is fascinating and terrifying. It's a topic that sparks our imagination, ...

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

Dark-energy evidence suggests the universe will end in a “big crunch” roughly 20 billion years from now. The universe is nearing the halfway point of what may be a 33-billion-year lifespan, according ...

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.

When discussing the scale of the universe, we’re immediately faced with an intriguing question: are we tiny beings, or is the cosmos itself immeasurable? In fact, the universe is so vast that special ...

Ghost particles' can zoom through you without a trace. Scientists are getting to the bottom of this cosmic mystery ...