HONG KONG: After decades of careful searching, astronomers and physicists are finally closing in on dark matter—the unseen majority of stuff in the universe.
Physicists first theorized in the 1930s that a mysterious form of matter was holding galaxies together. By the early 1980s, researchers began sharing ideas about what kind of properties those hidden particles might have. Recently, many instruments designed to hunt for dark matter have come online (including those in the gallery above), and scientists are finally beginning to see results emerge—as evidenced by the bevy of dark matter announcements and press in the last few weeks.
Some of the observations and claims from those instruments have been genuinely thrilling, hinting at the type of particle (or particles) that actually makes up the dark stuff; others have been dubious, to put it kindly. Let us separate the hope from the hype for you.
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