time

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…

1 year ago

Next Time You’re Late To Work, Blame Dark Energy!

A team of Armenian researchers has proposed a new answer to why time only moves in one-direction: it's all because…

6 years ago

How Long is a Day on Earth?

I'm going to ask you how long a day is on Earth, and you're going to get the haunting suspicion…

6 years ago

Don’t Look At Black Holes Too Closely, They Might Disappear

We've come a long way in 13.8 billion years; but despite our impressively extensive understanding of the¬†Universe, there are still…

7 years ago

What Came Before the Big Bang?

Astronomers are pretty sure what happened after the Big Bang, but what came before? What are the leading theories for…

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

Let’s Put a Sailboat on Titan

The large moons orbiting the gas giants in our solar system have been getting increasing attention in recent years. Titan,…

8 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

From Eternity to Here: The Amazing Origin of our Species (in 90 Seconds)

From the initial expansion of the Big Bang to the birth of the Moon, from the timid scampering of the…

9 years ago