
Planck telescope
The Planck telescope was a space observatory launched by the European Space Agency in 2009 to study the cosmic microwave background radiation, which is the faint afterglow of the Big Bang. It measured tiny temperature fluctuations in this radiation across the entire sky, providing valuable insights into the early universe's conditions, the formation of galaxies, and the overall geometry of the universe. By analyzing this data, scientists gained a better understanding of its age, composition, and the influence of dark matter and dark energy, helping to refine our model of cosmic evolution. Planck operated until 2013, delivering groundbreaking results.