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- Although astronomers cannot see dark matter, they can detect its influence by observing how its gravity bends and distorts light from more-distant objects, a phenomenon called gravitational lensing.
science.nasa.gov/mission/hubble/science/science-highlights/shining-a-light-on-dark-matter/
Look up at space at night from a dark location and you can see innumerable stars. So why do photos of planets and moons in space not show the stars in the background? It all comes down to the same kinds of camera settings you'd use on a regular camera.
Oct 16, 2023 · An astronomer explains why space looks so dark despite containing 200 billion trillion stars.
Jun 28, 2023 · Have you ever pondered why space is black? This profound question lies at the heart of a centuries-old enigma known as Olber’s Paradox. Olber wondered, if the universe is infinite and full of stars, why we don’t see a uniformly bright night sky.
Jan 13, 2021 · If you get away from city lights and look up, the sky between the stars appears very dark indeed. Above the Earth’s atmosphere, outer space dims even further, fading to an inky pitch-black. And yet even there, space isn’t absolutely black.
From mysterious radio bursts to dark cosmic clouds, these are 21 of the coolest things in the cosmos. From planets with two suns to colliding galaxies, these are the coolest, most incredible things in space that we know of.
Matter is defined as any substance that has mass and occupies space. But there’s more to the universe than the matter we can see. Dark matter and dark energy are mysterious substances that affect and shape the cosmos, and scientists are still trying to figure them out. Learn more.
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Nov 18, 2020 · Scientists have used a NASA probe way out in space, beyond Pluto, to measure visible light that's not connected to any known source such as stars or galaxies.
