Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing ...

The brightest quasar ever seen in the young cosmos is powered by a black hole that appears to be breaking the universe’s own ...

Space is filled with a variety of objects, some blisteringly hot, some tremendously cold, but areas with little to nothing at all never drop to absolute zero thanks to a fossil relic left over from ...

Even given a set of possible quantum states for our cosmos, it's impossible for us to determine which one of them is correct ...

Foundations in science and physics exist at the very core of the Netflix's hit show “Stranger Things," demonstrating to audiences for over a decade that our universe may be "stranger" than we care to ...

Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...

The six-year Dark Energy Survey has released its full results, showing that two leading models of cosmology are equally valid — but both fail to explain one key observation.

Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a new paper suggests.

Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...

Doesn’t that just say that the edge of the observable universe is moving away from us at the speed of light? Which is what being the edge of the observable universe means? Click to expand... But doesn ...

Columnist Natalie Wolchover checks in with particle physicists more than a decade after the field entered a profound crisis.