Einstein

What Time is It in the Universe?

by Fraser Cain August 28, 2014

Want to stay on top of all the space news? Follow @universetoday on Twitter 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… Remove this ad Fraser Cain on Google+

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Does Light Experience Time?

by Fraser Cain May 7, 2014

Have you ever noticed that time flies when you’re having fun? Well, not for light. In fact, photons don’t experience any time at all. Here’s a mind-bending concept that should shatter your brain into pieces. Remove this ad Fraser Cain on Google+

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Astronomy Cast Ep. 335: Photoelectric Effect

by Fraser Cain February 17, 2014

Pop quiz. How did Einstein win his Nobel prize? Was it for relativity? Nope, Einstein won the Nobel Prize in 1921 for the discovery of the photoelectric effect; how electrons are emitted from atoms when they absorb photons of light. But what is it? Let’s find out. Remove this ad Fraser Cain on Google+

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Why Einstein Will Never Be Wrong

by Brian Koberlein January 13, 2014

One of the benefits of being an astrophysicist is your weekly email from someone who claims to have “proven Einstein wrong”. These either contain no mathematical equations and use phrases such as “it is obvious that..”, or they are page after page of complex equations with dozens of scientific terms used in non-traditional ways. They […]

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Einstein Right Again! Rapidly Spinning Pulsar Follows General Relativity

by John Williams April 25, 2013

A unique and exotic laboratory about 6,800 light-years from Earth is helping Earth-based astronomers test Albert Einstein’s theory of general relativity in ways not possible until now. And the observations exactly match predictions from general relativity, say scientists in a paper to be published in the April 26 issue of the journal Science. Using ESO’s […]

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