(via Sabine Hossenfelder) Dark matter is a mysterious substance which makes up roughly 85% of the matter in the universe. But physicists have yet to figure out what dark matter actually is. In a new ...
(via Sabine Hossenfelder) The idea of “dark matter” -- transparent stuff that supposedly makes up the bulk of matter in the universe -- has been around for a century, but researchers have thus far ...
Modern cosmology assumes dark matter exists. But what makes us so certain that dark matter is the answer—and what if we're wrong?
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