10 Seriously Cool Astronomy Facts


The prospect of picking my own blog topic this week out of any and all astronomical topics was just TOO daunting for an indecisive person like me. So, I decided to just talk about a bunch of really super incredible amazing things all in the same post. The following are some seriously AWESOME astronomical facts:

  1. Only one two-billionth of the sun’s energy output is actually sent to the Earth.
  2. When an object falls into a black hole, scientists call it “spaghettification” because of the way black holes stretch the objects they absorb.
  3. If you could find a body of water big enough to put Saturn in it, Saturn would float.
  4. Saturn’s moon Titan, Jupiter’s moon Lo, Neptune’s moon Triton are all so massive that they’ve pulled their own moons into orbit.
  5. The core of a star can reach temperatures of 16 million degrees Celsius. If a single grain of sand was this hot, it would be able to kill a human being from 150 kilometers away.
  6. Neutron stars are so incredibly dense that a single tablespoon of their matter would weigh approximately 10 billion tons.
  7. 96% of the universe cannot be seen because it does not emit or reflect light.
  8. Technically, “space” begins at the Karman Line, which is only 100 km above the surface of Earth. Thus, a car driving into the sky could be in space in less than an hour.
  9. Since there is no wind or atmosphere on the Moon, footprints there will last pretty much forever…or until our Sun explodes or s meteor collides with it or something else disastrous like that.
  10. Scientists have discovered a star that is so cold and compact it has crystallized into a solid diamond.

Pretty sweet, right?


3 thoughts on “10 Seriously Cool Astronomy Facts

  1. These are some very interesting facts. The one I found most interesting was that only 1/2,000,000,000 of the Sun’s energy output reaches the Earth. This makes us realize how massive the Sun truly is and how much energy it really releases. Nearly all processes on Earth can be traced back to the Sun. These processes seem to be everything to us, but in reality, they are basically nothing compared to how much energy the Sun actually produces.


  2. I always enjoy a simple list of new information. Allows me to more easily recall for a fun conversation. I did have a question though. By how much do neutrons differ in density than our stars. How can a table spoon of a helium/hydrogen/other gases that make up a star be so dense?


  3. Grader here, Those are some huge facts with some very real implications! It is very easy to see why so little of the light reaches earth! Just take the total luminosity of the sun and divide it by 4*pi*r^2 where r is the distance from sun to earth (in some units, like meters) and then multiply that by pi*R^2 where R is the radius of the earth (same units) and you will see the fraction that earth receives.


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