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Latest about light
Enormous 3D map of the universe shows brilliant 'sea of light' near the cosmic dawn
A unique technique allowed astronomers to see the early universe as a "sea of light" and explore the effects of gravity and dark energy on cosmic evolution.
What's the darkest place in the solar system? What about the universe?
Space looks very dark from Earth. But does the solar system, and the universe for that matter, have an area that's the darkest of all?
What are the mysterious lights sometimes seen on the moon?
Earth's moon is occasionally illuminated by flickers, glows or beams of light. What are these mysterious lights?
Did light exist at the beginning of the universe?
Was it dark after the Big Bang, or did light shine immediately?
Does light lose energy as it crosses the universe?
The speed of light is the fastest anything can travel. What happens to a photon from a galaxy 25 million light years away on its journey toward Earth?
'White streak' appears over US as China dumps experimental fuel in space
A recent launch of China's Zhuque-2E rocket triggered a giant white streak of light to appear above at least seven U.S. states after deploying six satellites into low-Earth orbit. The light show, which was visible in at least seven states, was the result of a "fuel dump," experts say.
Watch eerie 'UFOs' and a solar 'cyclone' take shape in stunning new ESA video of the sun
An eerie new video from ESA's Solar Orbiter shows a towering 'cyclone' of plasma exhibiting behaviors never seen before on our sun.
Dying SpaceX rocket triggers giant spiral of light above UK and Europe during secret mission
A giant whirlpool of light, known as a "SpaceX spiral," was recently spotted swirling across the night sky over Europe as a Falcon 9 rocket prepared to reenter Earth's atmosphere after deploying top-secret cargo.
