GAURI's BLOG: DARK MATTER
What exactly is dark matter? Our universe is made up of galaxies,stars, gases,planets, rocks, black holes, nebulae and many more celestial objects. And as we discussed earlier in the BIG BANG BLOG that our universe is expanding each day at a very high speed. This expansion has been started since our universe was born and it still goes on expanding in the dark empty space. In 1933, Fritz Zwick coined the term ‘dark matter’. When scientists wrote a mathematical equation about the universe, they found something that is still not known to humans, but most of the part is occupied by it. This entity was totally unknown but it was an important part of the universe to expand.(mathematically). In simple words, just consider A +B=C. Consider we know the value of a and c. but we don’t know what B is exactly. But if we remove B from the equation like this, A=C then this won't make sense when the values are different. There must be something B to the equation to complete the e