A star’s surface temperature can be used to determine the star’s luminosity and chemical composition. At best, a star’s exact ...

It is almost 100 years since scientists discovered the universe is expanding. In the decades that followed, the accuracy of the measurements, and interpretations and implications of this discovery, ...

MIT scientists say that dark energy could be the missing factor that explains some of the most perplexing phenomena in the ...

Imagery of Saturn captured by the James Webb Space Telescope is superimposed over an image captured by Hubble. "Yellows ...

New infrared image highlights star formation triggered by merger-in-progress. Arp 107, a pair of interacting galaxies, shines ...

Travel 500 million light-years into the James Webb Space Telescope's amazing view of the Cartwheel Galaxy. Credit: ESA/Webb, ...

This week, we examine the recent pager explosions in the Middle East, which have reignited concerns about further escalation ...

Astronomers developed a technique that uses a star's spectrum to chart variations in its temperature to the nearest tenth of ...

The James Webb Space Telescope has imaged a collision between two galaxies that appears to have created a beaming smile in ...

Astronomers have detected a supermassive black hole starving its galaxy of gas, halting star formation in the early universe.

Using a phenomenon known as gravitational lensing, it might be possible to use the sun as a gigantic telescope to peer deep ...