For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe ...

For a quarter century, cosmology has leaned on one framework to explain how the universe expands. Known as the ΛCDM model, it ...

Astronomers are using radio pulses from space to find missing baryonic matter and learn about supermassive black holes, ...

In fact, the Euclid Consortium, the international group managing the European Space Agency's Euclid space telescope, just ...

Einstein’s version of dark energy is known as the cosmological constant. It implies a fixed amount of dark energy in each ...

Our understanding of cosmology hinges on how well we know our own local universe, which remains poorly mapped and poorly ...

Professor Chamkaur Ghag is driving efforts to detect weakly interacting massive particles (WIMPs), the prime candidates for ...

Using the world’s largest digital camera, Rubin will capture a full view of the southern sky every three days.

An international team of scientists has unveiled the Flagship 2 galaxy mock-up. No, it's not a cardboard diorama for a school ...

A growing list of dark star candidates could help explain why some early galaxies were so big, so early in the universe.

Physicist Jessie Muir discusses the roles of dark matter and dark energy in the universe, making up 95% of its mass-energy ...