The Exploratorium's Glow exhibition at San Francisco's Pier 15 wrapped in January, but its celebration of art and light remains a standout moment from the museum's winter season.

NASA astronaut Don Pettit captured breathtaking video of a rare atmospheric phenomenon from his perch high above Earth on the ...

Kathryne Ford is part of a national movement reviving a practice from the classic psychedelic era: projecting colorful liquid ...