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Rising and setting 'Omega sun' melts into a 'lava-like blob' in trippy mirage photosIn back to back days, the sun appeared to melt into the horizon due to a trippy optical illusion called the "Omega sun."
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NASA's Curiosity rover snaps extremely detailed 'postcard' of Martian landscape after waking up from a 'brain-boosting nap'The new panorama snapped by NASA's Curiosity rover combines photos from two different times of day to create a highly detailed image of the Red Planet.
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What is a light-year?A light-year is a measure of the distance it takes light to travel through interstellar space over the course of a year.
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Ethereal 'halo' and light arcs around the sun captured in photos of ultra-rare phenomenaAt least three separate optical phenomena are visible in the new images. Each of which is created by light refracting through millions of perfectly aligned ice crystals in the upper atmosphere.
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Shining rainbow rings around the sun photographed in Finland. What caused them?The extremely rare kaleidoscopic circles have a surprising Earth-based origin.
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Why are cave-dwelling eels growing skin over their left eyes? It may be evolution in action.These "greedy" eels likely retreated into the gloomy depths of underwater caves in search of tasty crustaceans and are adapting to the darkness by going blind, one eye at a time.
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Gravity can transform into light, mind-bending physics paper suggestsIn the early universe, gravity may have been capable of creating light, a new theoretical paper finds.
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Scientists use optical tweezers to play world's smallest game of catch with individual atomsScientists 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.
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Eerily perfect galaxy-shaped spiral appears over Hawaii. What is it?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.
