Megan Prewitt

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Everyone is excited - but a little confused - about gravitational waves. Here are the best jokes from Twitter

The most significant scientific discovery of the decade has been announced - so of course everyone made some silly jokes about it. Here are some of the best<p>It was announced today that Einstein was right - gravitational waves exist, so his theory of relativity is true.<p>Phew, we aren't going to be …

Mars colony hopeful: Why I'd forsake life on Earth

I have always been in awe of the night sky, trying to comprehend the vastness of space and the countless wonders it contains. But I have always felt …

Mars

NASA Wants To Send A Nuclear Submarine To Saturn's Moon Titan

Nothing says "we come in peace" like a military spaceplane delivering a nuclear sub<p>There are places beyond the reach of NASA’s current army of robot space explorers. Impressive and capable as Curiosity and other land rovers are, they’d be pretty useless in the liquid hydrocarbon lakes of Saturn’s …

Liquid water on Mars right under rover's nose?

We've known for some time that the Red Planet has frozen water and likely once hosted massive oceans, but it turns out Curiosity may not have to dig too deep to wet its whistle.<p>At long last, researchers on the Curiosity Mars rover's science team believe they have evidence that there is liquid water …

Monkeys

Curiosity has found salty, liquid water on Mars

Liquid water (probably) exists just below the surface of Mars -- although it is so salty it would kill any microbes that water could support. The …

NASA's New Horizons probe is visiting Pluto — and just sent back its first color photos

No spacecraft has ever visited Pluto. That's going to change on July 14, when NASA's New Horizons probe will fly within 6,200 miles of the dwarf planet after a nine-year journey.<p>"This is pure exploration," Alan Stern, the mission's principal investigator, said during a Tuesday press conference in …

Dark Matter Maps Shed Light on Secrets of Universe

In the universe, dark and light tend to cluster together, according to new maps that chart the location of dark matter over a large portion of the sky.<p>The new maps show that in some places there are large amounts of dark matter, while in others it is almost entirely absent. The researchers who made …

Dark Matter

Distant planet has four suns

Were it possible to see the skies from this world, the four parent stars would look like one small sun and two very bright stars visible in the …

5 Sky Events This Week: Green Giant, Lunar Triangle and Jovian Shadows

A planetary pairing and moon dances take center stage in the heavens this week.<p>Neptune meets Mars this week for stargazers, while Jupiter's retinue plays shadow games.<p><b>Neptune and Mars.</b> About an hour after sunset on Monday, January 19, look towards the southwestern sky for Venus and Mercury hanging …

Three New Earth-Size Planets Found "Nearby"

The Kepler space telescope has spotted over 1,000 exoplanets beyond our solar system, and its latest finds are three almost Earth-sized planets, including one in the habitable zone circling the star EPIC 201367075, just 150 light years from Earth.<p>In the cosmic sense, that’s right around the block, …

Astronomers Spy "Bullet" Galaxy Blasting Through Other Galaxies

A speedy space collision rips gas from a fast-moving galaxy.<p><b>What's New</b><p>A distant galaxy pierced another group of galaxies like a bullet, astronomers report, in a cosmic collision some 1.4 billion light-years away.<p>Observations from Europe's XMM-Newton X-ray space telescope reveal that the bullet …

Universe

Huge asteroid to 'narrowly' miss Earth

Space rock code-named 2004 BL86 set to pass Earth on January 26 in 'near miss' and won't be seen again for next 200 years<p>Amateur stargazers will have a once-in-a-decade opportunity to see an asteroid a third of a mile wide “narrowly” miss Earth on January 26.<p>The space rock, code-named 2004 BL86, is …

Asteroids