The conclusion of DESI's first survey marks an important milestone for cosmology, which finds itself in a bind for the best ...

When a big new idea emerges—like the Dark Dimension theory, the right-handed neutrino, or the changing cosmological constant ...

The team successfully built the largest, highest-resolution 3D map of the cosmos ever constructed. The completed map charts ...

Cosmological expansion is widely treated as a proven fact. It is not proven. For nearly a century, cosmology has told a simple story about a universe that began in a hot, dense state and has been ...

A comprehensive new study combines decades of research to reveal that we're missing an essential component in our ...

New findings from the Dark Energy Spectroscopic Instrument (DESI) challenge the long-held belief that the universe will expand forever. Data from mapping 47 million galaxies suggest dark energy may ...

Discover 25 space anomalies that even NASA can't explain, from dark matter to the Great Attractor. Explore the universe's ...

The most precise measurement yet shows the Universe is expanding faster than expected, deepening the Hubble tension. The ...

More than 60 years after astronomers first detected its X-ray glow, Cygnus X-1 — the first black hole ever confirmed — is ...

The time had come to open the envelope, but Stephan Schlamminger, a physicist at the National Institute of Standards and Technology (NIST), wasn't sure he wanted to know the secret number that lay ...

The 28 Days Later series has a history of divisive endings. The original film was famously reworked to finish on a less downbeat note, pointing to the likely survival of three major characters, ...

Scientists are rethinking the universe’s deepest mysteries using numerical relativity, complex computer simulations of Einstein’s equations in extreme conditions. This method could help explore what ...