In What Year Did The Louisiana Purchase Happen?
In What Year Did The Louisiana Purchase Happen?
In What Year Did The Louisiana Purchase Happen?
Did You Know!
Ordinary matter, which makes up stars, planets, and everything we see, constitutes only about 5% of the total mass-energy content of the universe. The remaining 95% is made up of dark matter and dark energy. Dark matter doesn't emit, absorb, or reflect light, making it invisible and detectable only through its gravitational effects. Dark energy is a mysterious force driving the accelerated expansion of the universe.