What is our universe made of?
ESA launched the Planck satellite in 2009 and got some unprecedented details, slight temperature differences came on the oldest optical surface known as the background sky when our universe first became transparent to light. Visible in all directions this cosmic microwave background is a complex tapestry that could only show the hot and cold patterns observed were the universe to be composed of specific types of energy that evolved in specific ways. The final results reported confirm that most of our universe is composed of dark energy, and that even most of the remaining matter energy is strangely dark. In 2018 the final Planck data say that the age of the universe at about 13.8 billion years and the local expansion rate is 67 km/sec/Mpc called the Hubble constant.
@astronomersonly
ESA launched the Planck satellite in 2009 and got some unprecedented details, slight temperature differences came on the oldest optical surface known as the background sky when our universe first became transparent to light. Visible in all directions this cosmic microwave background is a complex tapestry that could only show the hot and cold patterns observed were the universe to be composed of specific types of energy that evolved in specific ways. The final results reported confirm that most of our universe is composed of dark energy, and that even most of the remaining matter energy is strangely dark. In 2018 the final Planck data say that the age of the universe at about 13.8 billion years and the local expansion rate is 67 km/sec/Mpc called the Hubble constant.
@astronomersonly