Disks, spikes and clouds: A peek into a black hole's back yard

The first direct detection of gravitational waves in 2015 has opened a new window on the universe, enabling in particular the observation of the merger of pairs of massive black holes. This young field of research has matured ...

How big is a 'fragment'?

When a drinking glass falls on the floor and breaks, the shards will vary in size from large to extremely small. For the broken glass of a bus shelter, the story is different: all fragments have roughly the same size. Researchers ...

Using ions to find molecules

When we think of ions, we usually think of single atoms that have lost or gained some electrons, but entire molecules can also become ions. In a new publication that was highlighted as an Editor's Suggestion in Physical Review ...

Why slow-pouring coffee makes a tower of liquid in your cup

When a droplet of coffee hits the liquid surface in the cup, a characteristic tower of coffee forms for a very short time, sometimes even with a new droplet on top. In a paper that appeared in Physical Review Fluids today, ...

Neoliberals are most receptive to political tricks, study finds

Do we fall for political tricks—when politicians tell us things that seem completely meaningless? Social psychologists of the University of Amsterdam tested how people respond to vague and meaningless statements like "To ...

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