A Glimpse Inside The Secretive World Of Human Cannonballs

Once she has lowered herself into the mouth of the cannon and slid down to the base of the barrel, Gemma “The Jet” Kirby performs a series of breath-synchronized movements that seem more suited to yoga or lamaze than to one of the deadliest stunts in circus history. This sequence is the culmination of hours of… » 4/30/15 2:45pm Thursday 2:45pm

New Test Suggests NASA's "Impossible" EM Drive Will Work In Space

Last year, NASA’s advanced propulsion research wing made headlines by announcing the successful test of a physics-defying electromagnetic drive, or EM drive. Now, this futuristic engine, which could in theory propel objects to near-relativistic speeds, has been shown to work inside a space-like vacuum. » 4/30/15 12:14pm Thursday 12:14pm

Here's What The Night Sky Would Have Looked Like 10 Billion Years Ago

Our sun has only been around for 4.5 billion years — which means it missed the cute early years of the Milky Way galaxy. If you were standing on a planet 10 billion years ago, when the Milky Way was relatively young, the night sky would have looked very different. » 4/09/15 11:07pm 4/09/15 11:07pm

A Particle Accelerator in Space Could Trigger Artificial Auroras 

Auroras appear according to the whims of nature, not humans, which might just be part of their eerie appeal. But c’mon, it’s the 21st century now. Why are we just waiting around? So here’s a crazy idea unearthed by Mark Zastrow writing in Eos: Let’s a build a particle accelerator to trigger auroras whenever we want. » 4/08/15 5:50pm 4/08/15 5:50pm

Scientists Can't Agree How Long It Would Take To Fall Through The Earth

For years, a classic question posed to college physics students is how long it would take to fall to the center of the Earth. Given that we can smash tiny particles into each other at really high speeds using magnets, you'd think this would be an easy problem to solve. But apparently not. » 3/25/15 10:00pm 3/25/15 10:00pm

We Should Be Able To Detect Spaceships Moving Near The Speed Of Light

A pair of engineers say it's possible to detect the signatures of spacecraft traveling at relativistic speeds, and we can do so using current technologies. The trouble is, their new analysis also suggests that moving through space at ludicrous speed is more hazardous than previously thought. » 3/25/15 2:22pm 3/25/15 2:22pm