What Time is It in the Universe?

Check your watch. What time is it? But wait, you've actually been moving and accelerating, and according to Einstein, everything's relative. So what time is it really? It all depends… » 8/30/14 9:00am 8/30/14 9:00am

Physicists say that slowly collapsing wormholes could be used to send messages through time. Calculations show that the tube-like shape of wormholes could remain open long enough to be safely traversed by pulses of light, and thus allow for faster-than-light communication. » 5/21/14 7:00pm 5/21/14 7:00pm

Do yourself a favor and read Einstein's paper on special relativity

One of the most famous concepts in science was introduced in a paper with the uninspiring title, "On the Electrodynamics of Moving Bodies." A little reading can give you the basics of relativity, right from the source. » 3/17/14 11:34am 3/17/14 11:34am

Geons have gravity, but no mass. Could they really exist?

John Archibald Wheeler is a physicist who coined a lot of terms. You may have heard of a few of them. Wormhole. Black hole. Quantum foam. And geon. Wait, geon? » 11/01/13 11:20am 11/01/13 11:20am

Time travel is possible – but where will it take us?

We know that time travel is possible, at least in the forward direction. In this recently released TEDEd video, educator Colin Stuart imagines where and when it might take us, while exploring the science behind time travel and time dilation. » 10/25/13 3:19pm 10/25/13 3:19pm

A brief history of physics, whimsically animated

We're loving this expertly animated history lesson in physics from the folks at BBC Science Club. Directed by Åsa Lucander and narrated by Dara O Briain, the short provides a tidy, witty and informative overview of scientists and scientific progress from Galileo right up through the Large Hadron Collider. » 8/16/13 8:40am 8/16/13 8:40am

Iconic Black and White Photographs, Colorized

A sizable number of history's most unforgettable images were photographed in black and white. Now, through the digital process of colorization, we can see how these scenes might have appeared in person. » 7/27/13 3:00pm 7/27/13 3:00pm

10 Urban Legends about Famous Scientists

We've all heard stories about killers in the back seat and puppies that turn out to be rats, but hapless heroines aren't the only ones who spawn urban legends. There are a number of urban legends about famous scientists. Some are funny, some are mere inaccuracies, and some are about committing murder by accident. » 7/19/13 10:00am 7/19/13 10:00am

The plot to kill Einstein

Let's say that you found out that someone was conspiring to kill the most celebrated scientist of the twentieth century. What exactly would the penalty for that be? Whatever you're thinking, you're wrong. It's already been decided. And it's not good. » 7/02/13 7:00am 7/02/13 7:00am

MIT's OpenRelativity engine, designed to model Einstein's special theory of relativity in a video game, now is being released as an open-source toolset. It is available for download here. » 6/01/13 6:49pm 6/01/13 6:49pm

The fraud who worked with Einstein

Emil Rupp spent the late 1920s and early 1930s being lauded as the most impressive experimental physicist in the world. He managed to pull off experiments that no one else could. He worked with Einstein. And he'd made it all up. » 5/20/13 6:20am 5/20/13 6:20am

Freakish Pulsar Reaffirms Einstein’s General Theory of Relativity

Astronomers studying an absolutely enormous neutron star and its white dwarf companion have shown that Einstein’s calculations still work even under the most extreme gravitational conditions. » 4/29/13 11:20am 4/29/13 11:20am

Clever minimalist posters pay tribute to scientists and their…

In observance of India's National Science Day, graphic designer Kapil Bhagat created a series of simple typographical posters that creatively recognize scientists for their various inventions or discoveries. » 3/05/13 9:00am 3/05/13 9:00am

The most perfect sphere ever made tests Einstein's theories

This is a refraction of an image of Einstein in the most perfect sphere ever made. The flaws on this quartz sphere are no bigger than forty atoms. It, and other spheres like it, have been sent to space to test out a couple of Einstein's ideas. » 2/08/13 9:20am 2/08/13 9:20am

"Heroes of Science" action figures are light on "action," heavy on the…

Yesterday we told you about the world's greatest Agent Coulson action figure. At the time, we called it the world's greatest action figure. But AF-Coulson would do well to watch his back; over on deviantART, graphic artist datazoid has put together a series of digitally painted "Heroes of Science" action figures… » 11/20/12 7:00am 11/20/12 7:00am

Twenty-nine of history’s most influential scientists in one photograph…

I can't get over how fantastic this image is. It was originally captured in 1927 at the fifth Solvay Conference, one of the most star-studded meetings of scientific minds in history. Notable attendees included Albert Einstein, Niels Bohr, Marie Curie, Erwin Schrödinger, Werner Heisenberg, Wolfgang Pauli, Paul Dirac… » 9/04/12 5:00pm 9/04/12 5:00pm

It's official: Neutrinos can't go faster than the speed of light after…

Foolish humans. Such hubris to think that we could dethrone Einsteinian special relativity, by virtue of a single experiment. Now it's official: the notion that neutrinos could travel faster than the speed of light really was the result of a "faulty kit". » 6/08/12 5:00pm 6/08/12 5:00pm

Some infinities are bigger than other infinities. Here's how we know…

Minute Physics' Henry Reich takes a break from physics to drop some maths knowledge. Using some basic tenets of set theory, Reich explains how we know that one infinity can be bigger than another. » 5/12/12 1:40pm 5/12/12 1:40pm

Einstein's Advice to Women in Science Still Relevant More Than 60 Years…

In September of 1946, Albert Einstein received a letter from a precocious South African girl by the name of Tyfanny. » 4/09/12 2:20pm 4/09/12 2:20pm

How Einstein Came Up With Special Relativity

Time dilation. Length contraction. The fact that time moves faster at your face than it does at your feet. These are all experimentally verified consequences of the Special Theory of Relativity, proposed in 1905 by Albert Einstein. But the theory also helped explain one of the most nagging questions of modern… » 3/19/12 8:20am 3/19/12 8:20am