In the early universe, gravity may have been capable of creating light, a new theoretical paper finds.
Scientists who have thrown a single atom from one pair of optical tweezers to another say that the feat could be used to build better quantum computers.
A mysterious "whirlpool" of light temporarily shone in the night sky above Hawaii's Mauna Kea. Experts think it was linked to a SpaceX launch.
C/2022 E3 (ZTF), a comet that has recently made headlines as it flies closer to Earth, briefly developed an ethereal third tail thanks to a weird optical illusion.
If you have the right vantage point, a rainbow might look circular. Here's the science behind why some rainbows look like arches and others don't.
The International Astronomical Union has issued a warning over the newly launched BlueWalker 3 satellite, which is causing interference for both optical and radio telescopes.
Astronomers have created a colorful interactive map of more than 200,000 galaxies and quasars spanning the lifespan of the cosmos.
An astronaut onboard the ISS recently captured a peculiar image of Earth with two unrelated blue blobs of light shining in the planet's atmosphere.
The planet might once have been dominated by microbes that used a molecule other than chlorophyll to harness Sunâ€™s rays.
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