Intergalactic gas clouds are slightly hotter than they should be, new research claims, and theoretical particles called 'dark photons' could explain it.
Early life made an inhospitable Earth more habitable, and aliens could be doing the same thing on their worlds, new research proposes.
These hypothetical stars are the densest objects in the universe that can exist without becoming full-fledged black holes.
In quantum physics, particles exist in many states at once until you measure them. Can reality really work that way?
In some interpretations of quantum mechanics, such as the Many-Worlds interpretation or the Pilot Wave Theory, parallel universes may form every time a subatomic particle goes through any interaction.
A wild theory suggests that consciousness may explain quantum mechanics, by forcing the subatomic particles to choose one concrete outcome.
According to quantum mechanics, the physics theory that describes the zoo of subatomic particles, all matter can be described as both particles and waves. But is it real?
What lurks at the center of a black hole? Studying the space-time ripples from black hole collisions could reveal an answer.
Our 13 billion-year-old galaxy has gone through many growing pains — usually to the detriment of its smaller neighbors.
Most matter in the universe cannot be seen — but its influence on the largest structures in space can.
Short answer: We don't really know how the universe was created, though most astrophysicists believe it started with the Big Bang.
The Standard Model is the modern physical understanding of three of the four forces of nature: electromagnetism, the strong nuclear force and the weak nuclear force.
A team of physicists has found that the remnant of a neutron star merger observed in 2019 has just the right mass to be a strange hypothetical quark star.
Dark energy could be caused by pressure from giant voids of nothingness that may be flinging the universe apart.
Albert Einstein's famous equation E = m^2 connects energy to mass via the speed of light. Find out why E = m^2.
Reference The strong force is one of the four fundamental forces of nature. Learn how it fits into the Standard Model of particle physics.
If aliens exist, they do exist, they might be hanging out on Dyson spheres circling the husks of sunlike stars called white dwarfs.
Humans aren't just making Earth warmer, they are making the climate chaotic, a stark new study suggests.
Reference Pulsars are the ultradense cores of gigantic stars that emit beams of radio waves in regular pulses, like cosmic lighthouses.
Reference It's quite a big question and a lot is still unknown about the universe, but we'll tell you everything that we do know, from how the universe was created, how old it is and what it's even made of.