We Were Not Taught This. I Am Not Prepared.

Riding a rocket sled at @u.waterloo. I’ll be back in town on 16 Nov, stories & music at Centre in the Square http://centreinthesquare.com/event/chris-hadfield/ - with @dannymichelmusic! (at University of Waterloo)

A lot of people ask me what my biggest fear is, or what scares me most. And I know they expect an answer like heights, or closed spaces, or people dressed like animals, but how do I tell them that when I was 17 I took a class called Relationships For Life and I learned that most people fall out of love for the same reasons they fell in it. That their lover’s once endearing stubbornness has now become refusal to compromise and their one track mind is now immaturity and their bad habits that you once adored is now money down the drain. Their spontaneity becomes reckless and irresponsible and their feet up on your dash is no longer sexy, just another distraction in your busy life. Nothing saddens and scares me like the thought that I can become ugly to someone who once thought all the stars were in my eyes.

I pass by this sign all the time. It’s pretty darn cool

The Last Billboard

A 36-foot-long billboard located at the corner of Highland and Baum in Pittsburgh, Pennsylvania. Every month, a different individual is invited to take over the billboard to broadcast personalized messages, which are spelt out using wooden letters that are changed by hand. 

A Space Odyssey: 21 Years of Searching for Another Earth

There are infinite worlds both like and unlike this world of ours. We must believe that in all worlds there are living creatures and plants and other things we see in this world. – Epicurus, c. 300 B.C.

Are we alone? Are there other planets like ours? Does life exist elsewhere in the universe?

These are questions mankind has been asking for years—since the time of Greek philosophers. But for years, those answers have been elusive, if not impossible to find.

The month of October marks the 21st anniversary of the discovery of the first planet orbiting another sun-like star (aka. an exoplanet), 51 Pegasi b or “Dimidium.” Its existence proved that there were other planets in the galaxy outside our solar system.*

Even more exciting is the fact that astronomers are in hot pursuit of the first discovery of an Earth-like exoplanet orbiting a star other than the sun. The discovery of the so-called “blue dot” could redefine our understanding of the universe and our place in it, especially if astronomers can also find signs that life exists on that planet’s surface.

Astronomy is entering a fascinating era where we’re beginning to answer tantalizing questions that people have pondered for thousands of years.

Are we alone?

In 1584, when the Catholic monk Giordano Bruno asserted that there were “countless suns and countless earths all rotating around their suns,” he was accused of heresy.

But even in Bruno’s time, the idea of a plurality of worlds wasn’t entirely new. As far back as ancient Greece, humankind has speculated that other solar systems might exist and that some would harbor other forms of life.

Still, centuries passed without convincing proof of planets around even the nearest stars.

Are there other planets like ours?

The first discovery of a planet orbiting a star similar to the sun came in 1995. The Swiss team of Michel Mayor and Didier Queloz of Geneva announced that they had found a rapidly orbiting gas world located blisteringly close to the star 51 Pegasi.

This announcement marked the beginning of a flood of discoveries. Exotic discoveries transformed science fiction into science fact:

a pink planet

worlds with two or even three suns

a gas giant as light as Styrofoam

a world in the shape of an egg

a lava planet

But what about another Earth?

Our first exoplanet mission**, Kepler, launched in 2009 and revolutionized how astronomers understand the universe and our place in it. Kepler was built to answer the question—how many habitable planets exist in our galaxy?

And it delivered: Thousands of planet discoveries poured in, providing statistical proof that one in five sun-like stars (yellow, main-sequence G type) harbor Earth-sized planets orbiting in their habitable zones– where it’s possible liquid water could exist on their surface.

Now, our other missions like the Hubble and Spitzer space telescopes point at promising planetary systems (TRAPPIST-1) to figure out whether they are suitable for life as we know it.

Does life exist elsewhere in the universe?

Now that exoplanet-hunting is a mainstream part of astronomy, the race is on to build instruments that can find more and more planets, especially worlds that could be like our own.

Our Transiting Exoplanet Survey Satellite (TESS), set for launch in 2017-2018, will look for super-Earth and Earth-sized planets around stars much closer to home. TESS will find new planets the same way Kepler does—via the transit method—but will cover 400 times the sky area.

The James Webb Space Telescope, to launch in 2018, wil be our most powerful space telescope to date. Webb will use its spectrograph to look at exoplanet atmospheres, searching for signs of life.

We still don’t know where or which planets are in the habitable zones of the nearest stars­ to Earth. Searching out our nearest potentially habitable neighbors will be the next chapter in this unfolding story.

*The first true discovery of extrasolar planets was actually a triplet of dead worlds orbiting the remains of an exploded star, called a pulsar star. Two of three were found by Dr. Alexander Wolszczan in 1992– a full three years before Dimidium’s discovery. But because they are so strange, and can’t support life as we know it, most scientists would reserve the “first” designation for a planet orbiting a normal star.

** The French CoRoT mission, launched in 2006, was the first dedicated exoplanet space mission. It has contributed dozens of confirmed exoplanets to the ranks and boasts a roster of some of the most well-studied planets outside our solar system.

To stay up-to-date on our latest exoplanet discoveries, visit: https://exoplanets.nasa.gov

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

Have you ever wanted to make your own propaganda poster?

Now you can go churn out some vintage memes to refresh the economy 

wholesome meme creation. back to meme roots

軽トラだって、ドリフトはできる！！〜 Your Car

Even pickup trucks can drift!! 〜 Your Car

For folks who have problems hearing, we updated the new video with closed captions (sorry for the holiday delay).

hey i’ve thought of a new way to explain the difference between math research and science research are u ready math research: Why does pizza get hot in an oven? Well, let’s first prove ovens exist. Then we can try to prove ovens get hot.  Wait, have we even proved that pizza exists? Have we proved that pizza can get hot? Have we proved that heat exists? Have we proved that I exist? That you exist? science research: Why does pizza get hot in an oven? *sticks hand into burning oven* ahhHHHHHHHHHH WHAT’S HAPPENING