Finally! “She” has tried to conceal it for a long time, but now we know the universe is about 13.73 billion (+/- 120 milion) years old. Although Christopher Columbus might not agree, the universe also appears to be flat. Also the stuff we are made of (called “matter”) apparently is less than 5% of the whole universe. The other stuff in the universe is 72.1% dark energy and 23.3% dark matter, which we can’t even see or sense in any way…
I’m glad I know these details now thanks to the Wilkinson Microwave Anisotropy Probe 