Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

Despite significant scientific advancement over the last decades, the universe still finds new ways to surprise us. Every ...

Physicists have long struggled to unite quantum mechanics—the theory governing tiny particles—with Einstein’s theory of ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” Richard Feynman’s reflection lingers because it feels personal.

There is a silence in the night sky that has bothered me for as long as I can remember. ” That observation, attributed to ...

The universe is 13.8 billion years old — but its observable radius is about 46 billion light years. That’s because space itself expanded at more than 10 sextillion times the speed of light during ...

An international team of scientists led by the Institute of Cosmos Sciences at the University of Barcelona (ICCUB) and the Institute of Space Studies of Catalonia (IEEC) has presented REGALADE, an ...

Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

A research team has merged incomplete astronomical catalogs and collected the positions of 80 million galaxies in a new database.

A UC Santa Barbara graduate student alongside a local nonprofit research group have advanced the frontiers of physics while ...

New observations have ruled out the chances of an asteroid hitting the moon in 2032, according to scientists using the James Webb Space Telescope.