2. Lightweight Planets
You may have learned that some planets in the solar system are gaseous, but did you know that Saturn, that blinged-out planet with all the rings, could float in water? The planet’s density is 0.687 g/cm3 versus water’s density of .998 g/cm3. So Saturn would make an awesome rubber ducky in the universe’s largest bathtub. If only we had a prodigal billionaire to help make that happen. Paging Richard Branson?
3. Liquids in Space
Here on Earth, liquids tend to flow downward. But in the zero-gravity vacuum of space, any liquid will shape itself into a sphere. It is surface tension, the same phenomenon that causes water to form as a horizontal surface on Earth, that causes liquids to form spheres in space. Maybe frat guys should start paying attention to this stuff. No doubt they could convince alumni benefactors to send a crew of bro-stronauts up to research a new generation of drinking games.
4. Goodbye, Moon
5. Old Light
Believe it or not, the sunlight we see today is actually 30,000 years old. That’s when the energy of sunlight was created in the sun’s core, and it has since then been fighting to penetrate the dense matter of the sun. Once it reaches the surface, the light takes only about eight minutes to reach us. Scientists have confirmed that, due to its age, sunlight does in fact smell like old people. More specifically, like Magda from There’s Something About Mary.
6. Extra Moons?
In 1986, a scientist named Duncan Waldron discovered an asteroid in elliptical orbit around the sun that seemed to mimic Earth’s revolution. Because the asteroid appeared to be following our planet, it was sometimes referred to as Earth’s second moon. Since then, at least three similar asteroids have been discovered. Most recently, the Earth and the moon went on “Maury” to discover that, as suspected, Earth is the father of those asteroids.
7. Cold Welding
In space, pressing two uncoated pieces of metal will eventually fuse them together. The Earth’s atmosphere coats metallic surfaces with a layer of oxidized material, but in the vacuum of space, that layer barely exists. NASA used to be hyper-sensitive to cold welding, so the metal used in many spaceships is coated to prevent the reaction. But it takes more than a brief bump for two metals to fuse in space, and in the 1960s the phenomenon of instant, accidental cold welding was dispelled as a myth.
8. Extra Inches
All human beings are about two inches taller in space. On Earth, gravity compresses the spine, but in the vacuum of space, the spring-like spine is free to elongate. Short astronauts are thus more confident pick-up artists when floating around in space. The bad news? Back on Earth, they shrink back down to normal height. Also, girls get taller in space, too.
9. Diamond Star
10. Shrinking Sun
Solar winds are streams of charged particles ejected from the upper atmosphere of the sun that cause it to lose up to a billion kilograms of mass a second. For such an extreme dieting regimen, the sun still looks pretty damn enormous.
11. Lasting Footprints
Due to the absence of air and wind on the moon, all astronaut footprints last for millions of years, longer than the most permanent structures on Earth. As long as a meteor or any other space particle does not hit the moon, any impressions made into its surface will virtually last forever. Just imagine all the penis doodles the moon would wake up with if the aforementioned frat-boy excursion were to go down.
12. Electrostatic Levitation
13. Long Day
Amazingly, a single day on Venus is longer than its entire year. It takes Venus 243 Earth days to completely rotate on its axis, but just 225 days to orbit the sun. Stranger still, Venus is one of two planets that rotates in reverse, a phenomenon called retrograde motion. Most theories attribute the reverse rotation to an ancient planetary collision. That’s what happens when you make fun of Pluto’s mom.
14. Milky Way Satellites
15. Cold Steel
On the former planet Pluto (now designated a dwarf planet), the temperature is a brisk -390 degrees Fahrenheit. Expectedly, temperatures become progressively colder as you move away from the sun, and Pluto is about as far as you can get within our solar system. In fact, it is so cold that Pluto’s ice is harder than steel. Needless to say, your nipples can cut glass on Pluto.
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