In 1964, 2 radio astronomers discovered an ancient light that's been saturating our universe since about 380,000 years after the Big Bang. That light is Cosmic Microwave Background (CMB) Radiation.
According to Space.com, after the Big Bang, the cosmos was a seething-hot, opaque fog of plasma and energy; things changed about 380,000 years later, when temperatures dropped enough for electrically neutral atoms to form, and the universe became transparent.
According to the Internet, Gravitational waves 'are distortions in the fabric of space and time'. So does that mean there really could be parallel universes? And wouldn't that also mean that you could, in theory...
I just finished watching the new film Hidden Figures. It is about physicist and mathematician, Katherine Johnson as well as mathematician Dorothy Vaughan and engineer Mary Jackson, all of whom worked for NASA. It's about time these women got some recognition for their accomplishments.
This is the universe. Somewhere in this thing, there should be plenty of antimatter. There has got to be enough antimatter to balance out the regular matter, so where is all the antimatter? Well, it's obviously somewhere, we just don't know where to look. Here are some possible hiding places: