New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

The Hubble Space Telescope has captured imagery of the most distant single star found yet. It took the light from the star 12.9 billion light years to reach Earth. Learn how it was discovered. Credit; ...

Astronomers have discovered a beautiful, well-formed spiral galaxy from a time when the universe was still very young—only ...

The most distant known star in the universe is no longer a faint, anonymous point of light. With the James Webb Space ...

David Corenswet sits down with 'Sexiest Man Alive' Jonathan Bailey to discuss their 'Wicked' and 'Superman' heartthrobs for ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.

Cinema has been popular since the era of the Lumière brothers and remains one of the world’s most in-demand forms of ...

Astronomers capture the twinkle of a distant quasar, RX J1131, and reveal the secret size of a black hole's fiery corona.

Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

December is the month that fans of 3I/ATLAS have been waiting for as the interstellar comet makes its closest approach to ...

Make sure your angles are in units of radians (not degrees), where 2π radians = 360 degrees. But after that you will get the ...