When millions of people turn off their lights for Earth Hour each year, something remarkable happens in the night sky above ...

Researchers have cracked a fundamental optical challenge: how to control both angle and wavelength of light independently—a ...

IKEA sells dozens of mirrors for you to choose from. If you like the look of a round mirror for your space, here are nine options to consider.

Are we living in a cosmic void? New theory suggests our galaxy sits in a giant hole warping the universe's expansion.

Some faint stars may not burn with fusion but with dark matter itself. These "dark dwarfs" could be the long-awaited clue to ...

In the shadows, a figure watches you, but you are powerless to scream in your sleep. This isn't just Sonakshi Sinha's ghost ...

Sample our list of the best horror and dark fantasy books short enough to read in one sitting, curated for a horror-curious fantasy and sci-fi audience.