Three Mysteries and Facts About Space

Although Space has been studied for years, there are still many mysteries and things that are unknown to us, or we don’t have a full understanding of. Jumping right in, one of these mysteries is dark energy/dark matter. This is something that’s more theoretical, but scientists are still looking into it. According to NASA, “More is unknown than is known. We know how much dark energy there is because we know how it affects the universe’s expansion. Other than that, it is a complete mystery. But it is an important mystery. It turns out that roughly 68% of the universe is dark energy. Dark matter makes up about 27%. The rest – everything on Earth, everything ever observed with all of our instruments, all normal matter – adds up to less than 5% of the universe” (NASA). It can be pretty scary to think about the fact that more than half of the universe is dark energy, and we don’t even know exactly what that is, but hopefully, we will find out some more details.  Until then dark energy/ dark matter remains a mystery until more information is discovered.   

Black holes occur when stars die or cave in, but it can also be due to other happenings as well. In a black hole, no light can be emitted and light is essentially trapped in the black hole. “A black hole is a region in space where the pulling force of gravity is so strong that light is not able to escape. The strong gravity occurs because matter has been pressed into a tiny space. This compression can take place at the end of a star’s life. Some black holes are a result of dying stars” (NASA). Black holes have been studied for a while; the effects they have on objects, lights, and even people. Although dangerous, they are intriguing and scientists who study space are interested in learning more.     

 Supernovas are when stars explode. This can be due to many different things but normally when a star dies or is at the end of its life. It is believed that this is what will happen to the sun when and if it explodes.  “A supernova happens where there is a change in the core, or center, of a star. A change can occur in two different ways, with both resulting in a supernova. The first type of supernova happens in binary star systems. Binary stars are two stars that orbit the same point. One of the stars, a carbon-oxygen white dwarf, steals matter from its companion star. Eventually, the white dwarf accumulates too much matter. Having too much matter causes the star to explode, resulting in a supernova” (NASA). Supernovas are studied through telescopes, and scientists focus on light that came from the explosion. Because of these telescopes, there are some amazing before and after pictures of these Supernovas.  We can also see Supernovas through telescopes that are in space and capturing pictures for scientists on earth. 

Credits:  

https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-a-black-hole-58.html

https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-a-supernova.html

https://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy

Author: Grace C

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