The Wilkinson Microwave Anisotropy Probe (WMAP) is a NASA satellite mission led by Professor Charles L. Bennett of Johns Hopkins University, whose mission is to survey the sky to measure the temperature of the radiant heat left over from the Big Bang did a research and we got a plot of the whole universe which essentially said that the universe has Density Omega =1
But we knew that Matter(measured) was 27% so it was said that the Dark Energy was 73%
Also among Matter real visible matter(protons/neutrons) is 4% so 23 % has to be dark matter
What is Universe Made of?
So in essence 96% of the universe is Dark Energy and Dark Matter!!!!
Big Bang
1. Very Hot
2. Cosmic Background Radiation is coming from 14B light years away in all direction
3. Universe is opaque - all protons and electrons are free
4. 380 000 Years after the bang - p+e are combined and Universe starts transparent at 3000K
5. WMAP said that there was a difference in temperature(1/100000 K) which was the "seeds"
of universe causing differences in densities visible now.
6. 200 000 000 after the bang - Galaxies/Stars start to form and shine
7. Temperature
003 Kelvin - Universe Now (Very Cold)
300 Kelvin - San Diego
14 000 000 000 BC - Big Bang Universe is opaque - all protons and electrons are free
380 000 Years after - p+e are combined and Universe starts transparent at 3000K
??? - there was a difference in temperature(1/100000 K) which was the "seeds" of universe
200 000 000 after - Galaxies/Stars start to form and shine
00 000 006 500 BC - Srimad Bhagawad Gita Recited to Arjun
00 000 003 000 BC - History recorded
00 000 000 000 BC - Christ is Born
00 000 000 030 AD - Christ is Crusified
00 000 001 999 AD - Y2K
00 000 002 007 AD - Now
00 000 003 000 AD -
14 000 000 000 AD - Big Crunch
Course Link
Alex Filippenko
