A new theory suggests dark matter may have come from quantum bags that got squished together in the early universe.
Roughly 80 percent of the mass of the universe appears to be dark matter: an invisible material that seems to interact with ordinary matter only through gravity, without emitting light or energy. Scientists cannot detect dark matter directly and don't yet know what it's made of, but they track its influence based on the motions of stars and galaxies. The presence of dark matter is necessary to explain the universe's current structure.
By entangling the motion and quantum properties of a beryllium crystal, scientists have achieved unprecedented precision for measuring electromagnetic waves.
You may have heard about the "cosmology crisis:" Different methods of measuring the age of the universe are giving different results, and cosmologists have no idea why.
Why is the universe the way it is? Over the years, scientists have explored many ways to explain the cosmos, leading to some crazy-sounding ideas.
Dark matter could be even weirder than anyone thought, say cosmologists who are suggesting this mysterious substance could interact with itself in a higher dimensional universe.
Understanding the 'undetectable' cosmos could lead to significant changes in some highly cherished theories about space-time.
Astronomers may not know what dark matter is, but they do know that galaxies are supposed to contain a lot of the shadowy, invisible substance.
The community ponders about the most important questions in space exploration and interrogates dark matter.
The Dark Energy Survey just released its most comprehensive results. But did they really prove Einstein wrong?
A new study suggests that annihilating dark matter particles may explain the Milky Way center's mysterious glow.
Evidence of collisions between black holes and neutron stars suggests dark matter might consist of concentrations of primordial black holes.
Astronomers discovered a radio structure that looks like a gigantic jellyfish, though it only glows in certain wavelengths.
Theoretical physics is supposed to be about pure, crisp ideas. But physics is done by humans, and human society brings messiness to any endeavor.
Nearly a century after dark matter was first proposed to explain the motion of galaxy clusters, physicists still have no idea what it’s made of.
Scientists are finally figuring out how much dark matter — the almost imperceptible material said to tug on everything, yet emit no light — really weighs.
Astronomers may be getting closer to discovering as-yet hidden cosmic secrets, such as the nature of dark matter and the presence of widespread distortions in space-time.
What if there is more than one cosmological agent for dark energy? This mixture would have strange effects in our universe, making it potentially detectable with upcoming surveys.