A white Universe would appear infinitely bright, eliminating the familiar black night sky and changing cosmic visibility.

This Star Trek concept ignited a dream that humans could one day travel faster than the speed of light. Now physicists are ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

See the iconic Pillars of Creation in this 3D visualization created from James Webb and Hubble Space Telescope data. Credits ...

ORCs are vast, faint rings of radio energy that surround galaxies and can be detected only in radio wavelengths of the electromagnetic spectrum. They are made up of fast-moving, magnetized plasma.

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...

A powerful new telescope in outback Australia has mapped vast areas of the universe in record-breaking time, revealing a million new galaxies and opening the way to new discoveries, the country's ...

As Quirks & Quarks celebrates its 50th anniversary, Bob McDonald looks back at a half century of science and peers forward to the next 50 years.

How old are the stars? Even with the most accurate tools currently available for modeling stellar evolution, the answer ...

Orbs with twin suns, a star twice as old as our sun... see how new discoveries, with surprising similarities to fiction, are rewriting our understanding of the universe.

Tatooine may exist in a galaxy far, far away—but its origins are rooted in the real sands of Tunisia, in North Africa.

Harvard professor Avi Loeb suggests the newly discovered interstellar object 3I/ATLAS might be alien technology. Unusual ...