The first deep field image captured by the James Webb Space Telescope is of galaxy cluster SMACS 0723. Credit: NASA, ESA, CSA ...

Using NASA's James Webb Space Telescope, astronomers uncovered a mysterious feature within the remnant, nicknamed the "Green ...

It is a small area of the sky, equivalent to holding a square of one millimeter by one millimeter at arm’s length. But tens ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Galaxies speckle the heavens like stars in a stunning new photo of the deep and distant universe.