A seven-hour gamma-ray burst, GRB 250702B, stuns astronomers and hints at powerful new cosmic engines still unknown to science.

Librarians across the U.S. examine how restrictions on library content are shaping communities. When lawmakers seek to review a list of books, librarians find themselves on the frontlines of a ...

Sunlight holds hidden colors. Raindrops act like prisms, bending light. This bending separates colors, creating a rainbow.