Physics
Wormholes Could Allow Travel Across the Universe, as Long as Your Spacecraft is Microscopic
An alternative to general relativity predicts wormhole travel is possible, but only if you're teeny-tiny.
Alcubierre Gives us an Update on his Ideas About Warp Drives
A new look at warp drive fuels hope that it might be possible after all.
A new Approach Could Tease out the Connection Between Gravity and Quantum Mechanics
A proposed experiment using super-cooled atoms could reveal the nature of quantum gravity.
Quantum Theory Proposes That Cause and Effect Can Go In Loops
Causality is one of those difficult scientific topics that can easily stray into the realm of philosophy. Science’s relationship with…
Neutrinos Have a Newly Discovered Method of Interacting With Matter, Opening up Ways to Find Them
Researchers at the Oak Ridge National Laboratory recently conducted another neutrino experiment that could lead to the discovery of new…
There's no way to Measure the Speed of Light in a Single Direction
A new study shows that not even cosmology can verify Einstein's assumption about the speed of light.
A new Type of Atomic Clock Uses Entangled Atoms. At Most, it Would be off by 100 Milliseconds Since the Beginning of the Universe
Scientists have made a clock so accurate you wouldn't have to reset it for billions of years.
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…
Time Travel, Without the Pesky Paradoxes
So you've built a time machine. What prevents you from creating a paradox that dooms us all?
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…