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Posts tagged astronomy

July 19, 2017

 

This image was created by taking a picture of a moving flashlight. It shows that light takes time to travel.

Light Takes Time

Learn how Roemer learned that light does take time to travel.

May 8, 2017

 

Where is your favorite place to stargaze?

Why Do Stars Twinkle?

Astronomers are learning more about the brightening and dimming of stars.

January 25, 2017

 

The Sun exploding while setting over the Pacific Ocean in California

The Sun Just Blew Up!

How do you know the sun didn't just explode? We aren't talking about the everyday, run-of-the-mill controlled explosion the sun is always doing, but a big boom.

August 29, 2016

 

Is E.T. Hiding?

What if the aliens are hiding from us? Hiding a whole planet is easier than you think.

August 10, 2016

 

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Could Our Sun Turn Deadly?

It may sound far-fetched, but humanity faces a major potential danger: someday, there might be a gigantic explosion on the sun.

July 21, 2016

 

Because Venus glows in infrared light, you cannot see it glow using a telescope.

A New Ninth Planet

Pluto is too small to be considered a planet anymore, but our solar system appears to have a new ninth planet.

September 21, 2014

 

Amateur astronomers watch a meteor shower.

Helping NASA From Home

NASA wants YOU to help them make new discoveries! Crowdsourcing alleviates big data problems for astronomers.

May 21, 2014

 

The Hale-Bopp comet, which passed by Earth in 1997, had two bright tails.

Tales About Tails

Have you ever wondered why comets look the way they do when they get close to the sun?

February 4, 2014

 

The meteor that produced Arizona's Meteor Crater was a little over half-a-football-field in diameter.

Mapping (Potentially) Killer Asteroids

There are a million space rocks nearby. Astronomers have only mapped about 9,700 of them.

February 3, 2014

 

Thankfully, most meteors are small and burn up in the Earth's atmosphere.

Saving the World from Asteroids

When it comes to saving the Earth from threatening astroids, Bruce Willis can only do so much.

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