relativity

What is Gravitational Lensing?

Gravity's a funny thing. Not only does it tug away at you, me, planets, moons and stars, but it can…

7 years ago

How are Energy and Matter the Same?

As Einstein showed us, light and matter and just aspects of the same thing. Matter is just frozen light. And…

7 years ago

What Would It Be Like To Fall Into A Black Hole?

Let's say you happened to fall into the nearest black hole? What would you experience and see? And what would…

7 years ago

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…

7 years ago

Does Light Experience Time?

Have you ever noticed that time flies when you're having fun? Well, not for light. In fact, photons don't experience…

8 years ago

The Secret of the Stars

"Say, do you like mystery stories? Well we have one for you. The concept: relativity." Well look at that, it's…

9 years ago

Do We Really Need Dark Matter?

Hubble mosaic of massive galaxy cluster MACS J0717.5+3745, thought to be connected by a filament of dark matter. Credit: NASA, ESA,…

9 years ago

A Star’s Dying Scream May Be a Beacon for Physics

When a star suffered an untimely demise at the hands of a hidden black hole, astronomers detected its doleful, ululating…

9 years ago

Data from Black Hole’s Edge Provides New Test of Relativity

From a NASA press release: Last year, astronomers discovered a quiescent black hole in a distant galaxy that erupted after…

9 years ago

Astronomy Without A Telescope – Light Speed

[/caption] The recent news of neutrinos moving faster than light might have got everyone thinking about warp drive and all…

10 years ago