University of Arizona astronomers are discovering unexpected information about one of the brightest stars in the Milky Way.

Uranus is unique as it rotates on its side, at roughly a 90-degree angle from the plane of its orbit. The planet takes 84 years to orbit the Sun. An animated GIF showing Uranus' magnetic field. The ...

A new study suggests galaxies in the early universe appear much larger and brighter than expected, precisely as predicted by ...

The James Webb Space Telescope has captured imagery of spiral galaxy NGC 7469, which is 90,000 light-years in diameter. The ...

The Roman Telescope is being built at NASA's Goddard Space Flight Center, where the coronagraph recently arrived after being ...

Dark matter is an essential element of galaxy formation and physics, according to the standard theory of how the universe ...

If another gravity theory is correct, "then the broader implications are enormous," astrophysicist Stacy McGaugh told ...

All the major elements of NASA’s next flagship space telescope are now under one roof as NASA says its development remains on cost and schedule.

Since its deployment, the James Webb Space Telescope has been fine-tuned by experts to maintain its powerful optical ...

See amazing imagery of the Carina Nebula as captured by the James Webb Space Telescope. NASA Goddard Space Flight Center ...

The standard model for how galaxies formed in the early universe predicted that the James Webb Space Telescope (JWST) would see dim signals from small, primitive galaxies. But data are not confirming ...

NASA's James Webb Space Telescope is the largest and most powerful telescope ever launched to space. Its mirror is composed of 18 individual segments that have been aligned so accurately, that they ...