Much of Earth’s Water Is Older Than The Sun And Came From Deep Space
A study published in the journal Science suggests that between 10 to 30 percent of the Earth’s water is older than the Sun and likely hails from comets born outside our solar system. That means that the human body, which is 60 percent water, contains a high percentage of extraterrestrial water; Yes that’s right, we are all part alien.
Humans Are All Made Of Star Stuff
The nitrogen in our DNA, the calcium in our bones, the iron in our blood, the carbon in our In-N-Out burgers were all created in the interiors of collapsing stars over 4.5 billion years ago. Astronomer and science legend Carl Sagan famously said. “We are made of star-stuff.”
7 More Totally Amazing Facts About Space:
- Did you know you can drive to the edge of outer space in about an hour? The only thing is—your car must be able to travel straight-up. That’s because the border between the earth’s atmosphere and outer space is only about 60 miles away.
- We’re not that big a deal: At least one million Earth’s could fit inside the sun—and the sun is considered just an average size star.
- Speaking of stars: There are more of them in the universe than grains of sand on Earth. Something to think about the next time you lay on the beach.
- Hope you get a window seat: If you fly in a standard plane to Pluto, the trip would take you about 800 years.
- Better take a change of clothes: Scientists believe Neptune has winds that can reach 1600 miles-an-hour, Venus can get at least five times hotter than boiling water, and a massive hurricane-style storm has raged on Jupiter for almost 200 years. And you thought Hurricane Katrina was big.
- There’s a lot of junk out there: It’s estimated about 500,000 pieces of man-made items that no longer serve a useful purpose are floating in space. They include fragments from rockets and satellites as well as everyday items like tools dropped during the construction of the International Space Station.
- Things may not end well: There are several theories about what will eventually happen to our universe and none of them are pretty. According to the Big Rip theory, a mysterious force is known as “dark energy” will become so powerful that it pulls every ounce of Earth’s matter apart. Another is the Big Crunch theory that states at some point, the universe will stop moving in one direction and start shrinking back on itself. Finally, there are those who believe there’ll be another Big Bang. Unlike the first one that many think birthed the cosmos, this one will incinerate the entire universe.
But, there’s no need to immediately get your affairs in order. It appears the soonest any of this could happen is a few billion years.
Did you know that Earth’s oldest known rock was found on the Moon? Learn More
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