#611 How does an ion thruster work?
How does an ion thruster work? It creates thrust by accelerating ions using electricity. An ion is a charged atom or molecule. Atoms always have an equal number of electrons…
How does an ion thruster work? It creates thrust by accelerating ions using electricity. An ion is a charged atom or molecule. Atoms always have an equal number of electrons…
How long did it take for the sun to get hot? Approximately 10 million years for it to start burning. The sun is hot because of nuclear fusion, which is…
How much space junk is there? There are over 128 million pieces of space junk in orbit around Earth at the moment. There are 5,465 satellites orbiting in space at…
Where does space end? There is no way of knowing, but there is a horizon 46 billion light years away that we can’t see past. There are five different possibilities.…
Where does space start? Technically, it starts at 100 km, but there are five different definitions. Space begins at the Kármán Line, which is 100 kilometers above sea level. There…
I learned this today. The aurora borealis are green, purple, pink, and blue because those are the colors given off when the different elements in the atmosphere are heated up.…
I learned this today. The energy from the photons in a laser beam can be used to propel a very light sail into space. A laser powered solar sail could…
I learned this today. Some planets have rings because they have captured debris, but that debris is too close to the planet to form into a moon. In our solar…
I learned this today. Signals from intelligent life are so difficult to hear because of the sheer vastness of space and the fact that we change the technologies we use.…
I learned this today. Astronomers believe that there is a black hole at the center of every galaxy. In May of 2022, astronomers released photographs of the black hole at…