10/05/2017

Exploding Eta Aquarid meteor caught in the act

An Eta Aquarid meteor captured on video by astrophotographer Justin Ng shows an amazing explodingred meteor and what is known as a persistent train—what remains of a meteor fireball in the upper atmosphere as winds twist ...

Tiny tug unleashes cryogenic currents

Researchers have found that a small stretch is enough to unleash the exotic electrical properties of a newly discovered topological insulator, unshackling a behavior previously locked away at cryogenic temperatures.

Why big-data analysis of police activity is inherently biased

In early 2017, Chicago Mayor Rahm Emanuel announced a new initiative in the city's ongoing battle with violent crime. The most common solutions to this sort of problem involve hiring more police officers or working more closely ...

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