Space
Dark Matter Just Got Darker
Dark matter: unless you're a theoretical physicist, you probably will have a hard time explaining just what this mysterious thing in our Universe really is. Even experts have long viewed the material as one giant question mark looming over blackboards and telescopic lenses. Now, a new discovery has made things even more complicated. Dark matter, as it turns out, barely even interacts with itself, explaining why it is so undetectable.
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