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Posts tagged astronomy

July 19, 2017

 

light lines created by a flashlight

Light Takes Time

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

May 8, 2017

 

stars moving around the pole

Why Do Stars Twinkle?

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

January 25, 2017

 

A sun set 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

 

telescope

Is E.T. Hiding?

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

August 10, 2016

 

an image of a solar flare

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

 

A telescope set up outside

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

 

Three people look into the night sky with binoculars and a telescope during 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

 

Hale-Bopp comet with two 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

 

Arieal photo of Arizona's Meteor Crater

Mapping (Potentially) Killer Asteroids

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

February 3, 2014

 

Time-lapse photo of a natural arch at night with a few meteors streaking in the starry sky behind

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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