Physics

There’s a new record for the shortest time measurement: how long it takes light to cross a hydrogen molecule

To measure small differences in time, you need a really tiny clock, and researchers in Germany have discovered the smallest…

1 month ago

Time Travel, Without the Pesky Paradoxes

So you've built a time machine. What prevents you from creating a paradox that dooms us all?

2 months ago

Even Comets Can Have Auroras. Comet 67P/Churyumov-Gerasimenko Does

The ESA's Rosetta mission to Comet 67P/Churyumov-Gerasimenko ended four years ago. On September 30th 2016 the spacecraft was directed into…

2 months ago

Behold! The Black Hole Collision Calculator!

A new tool called the Black Hole Collision Calculator let's users see just how powerful a collision between a black…

3 months ago

NASA’s New Video Shows You What it’s Like Traveling Close to the Speed of Light

NASA has just released an informative video that lets potential interstellar travellers know what they're in for!

3 months ago

Could a tabletop experiment detect gravitational waves and determine the quantum nature of gravity?

A tabletop gravitational wave detector could take decades to build, but it could answer the most fundamental questions in physics.

3 months ago

Complete and Total Mayhem in a Distant Galaxy Collision

A cluster of galaxies is nothing trivial. The shocks, the turbulence, the energy, as all of that matter and energy…

5 months ago

How an Advanced Civilization Could Exploit a Black Hole for Nearly Limitless Energy

A black hole as a source of energy? We know black holes as powerful singularities, regions in space time where…

5 months ago

There’s no evidence that dark matter interacts with any other force but gravity

Most of the universe is made of one of two kinds of mysterious substances, called dark matter and dark energy.…

5 months ago

Japanese Dark Matter Detector is Seeing a “Surprising Excess of Events”

A search for dark matter has found an extra signal in their data that could point toward proof of dark…

5 months ago