How do scientists know what percentages of the universe are made up of dark matter and dark energy?

The Dark Energy Spectroscopic Instrument will measure light from 35 million cosmic objects for new insights into what causes the universe to expand faster and faster.

Astronomers around the world are looking for visible sources of gravitational waves.

The upgraded experiment aims to discover if neutrinos are their own antiparticles.

The discovery supports a powerful tool for discovering galaxies that are otherwise too distant to observe, and could lead to advances that improve our understanding of dark matter.

One: The Deep Underground Neutrino Experiment will look for more than just neutrinos.

A new experiment at the South Pole picks up where BICEP2 left off.

It will provide new insights into the physics of black holes, the formation of chemical elements, stars and galaxies, and the evolution of the universe itself.

Fermi scientist Matthew Wood discusses major improvements to the Fermi Large Area Telescope, including increasing its sensitivity to the equivalent of launching another LAT.

A recent uptick in the discovery of the smallest, oldest galaxies benefits studies of dark matter, galaxy formation and the evolution of the unive

Matter and antimatter behave differently. Scientists hope that investigating how might someday explain why we exist.

Researchers are searching for a quantum theory of gravity that could help answer fundamental questions about the universe, from the very first moments after the Big Bang to the physics of black holes.