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Ryan F. Mandelbaum Ryan F. Mandelbaum Jan 14, 2020. 5 comments

Has Hubble Detected Rogue Clumps of Dark Matter?

Has Hubble Detected Rogue Clumps of Dark Matter?

Scientists using the Hubble Space Telescope have discovered evidence of small clumps of dark matter warping the light from distant quasars.

Regular matter seems to form only a small part of the universe—much more of the matter seems to be “dark” stuff that influences regular matter via gravity but can’t be detected directly. The most widely accepted theory to explain dark matter suggests that...

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Ryan F. Mandelbaum Ryan F. Mandelbaum Jun 09, 2018. 20 comments

What Is Dark Matter and Why Hasn't Anyone Found It Yet?

What Is Dark Matter and Why Hasn't Anyone Found It Yet?

Five-sixths of the universe’s stuff seems to be missing, and we just can’t find it. It’s called “dark matter,” and scientists have gone looking for it with some of the world’s largest, most expensive experiments.

Time and time again, these experiments come up empty handed. Most recently, the scientists at the XENON1T experiment, a literal ton of super-sensitive liquid xenon,

didn’t find the...

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Ryan F. Mandelbaum Ryan F. Mandelbaum Apr 10, 2018. 5 comments

If Tiny Dark Matter Particle Exists, This Experiment Is Now Ready to Find It

If Tiny Dark Matter Particle Exists, This Experiment Is Now Ready to Find It

Scientists are turning the tuning knob on an experiment that’s essentially a radio receiver inside of a magnet. It’s been around for years, but now it might finally be sensitive enough to hear a whole new kind of particle—one that could explain the mystery of the Universe’s dark matter.

There are various hypothetical candidates that could explain dark matter which, if it exists, should...

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Adam Clark Estes Adam Clark Estes Aug 17, 2017. 21 comments

Trump Was Instructed Not to Delete Tweets Illegally

Trump Was Instructed Not to Delete Tweets Illegally

Remember the day after the inauguration? Okay, we were hungover, too, but do you remember how Trump might have 

violated federal records-keeping laws by illegally deleting his tweets while in office? Turns out, the National Archives also heard about that and took action.

David Ferriero, Archivist of the United States, recently replied to a letter from Senators Claire McCaskill and Tom Carper...

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