Looking at a distant galaxy means looking back in time.

A new image from the James Webb Space Telescope shows Arp 107, home to two merging galaxies, with two bright cores and a "bridge" of dust and gas forming a cosmic smiley face.

LTT 1445 Ac is roughly the size of Earth and about 22 light-years away in the constellation Eridanus. The planet orbits the ...

The James Webb Space Telescope captured an image of a collision between a spiral galaxy and an elliptical galaxy. Together, ...