Explanation:

The Nobel Prize for Physics has been awarded to James Peebles for theoretical discoveries in physical cosmology, and Michel Mayor and Didier Queloz for discovering an exoplanet orbiting a solartype star. James Peebles: Theoretical discoveries in physical cosmology
Peebles developed a theoretical framework about the cosmos and its billions of galaxies and galaxy clusters since the mid-1960s. The importance of the cosmic radiation during birth of the Big Bang was realized by him. James Peebles also interpreted traces from the infancy of the universe and discovered new physical processes. The results showed a universe whose just five percent of content is known, the matter which constitutes stars, planets, trees – and us. The rest, 95 per cent, is unknown dark matter and dark energy.