Cosmology

Definition

Cosmology is the study of the universe; its birth, evolution, and ultimate fate. This includes further developing and refining the prevailing model, the Big Bang theory, investigating the universe’s rate of expansion, and measuring radiation left over from the Big Bang, the so-called cosmic microwave background.

Featured

Latest Research and Reviews

  • Research |

    Recent observations reveal tension between various cosmological probes. Assuming dark energy to be non-constant, depending on redshift, may relieve this tension. The Dark Energy Spectroscopic Instrument survey will be able to confirm this result.

    • Gong-Bo Zhao
    • , Marco Raveri
    • , Levon Pogosian
    • , Yuting Wang
    • , Robert G. Crittenden
    • , Will J. Handley
    • , Will J. Percival
    • , Florian Beutler
    • , Jonathan Brinkmann
    • , Chia-Hsun Chuang
    • , Antonio J. Cuesta
    • , Daniel J. Eisenstein
    • , Francisco-Shu Kitaura
    • , Kazuya Koyama
    • , Benjamin L’Huillier
    • , Robert C. Nichol
    • , Matthew M. Pieri
    • , Sergio Rodriguez-Torres
    • , Ashley J. Ross
    • , Graziano Rossi
    • , Ariel G. Sánchez
    • , Arman Shafieloo
    • , Jeremy L. Tinker
    • , Rita Tojeiro
    • , Jose A. Vazquez
    •  & Hanyu Zhang
    Nature Astronomy 1, 627–632
  • Research |

    A positive magneto-thermoelectric conductance is observed in the Weyl semimetal niobium phosphide, suggesting the presence of the elusive mixed axial–gravitational anomaly.

    • Johannes Gooth
    • , Anna C. Niemann
    • , Tobias Meng
    • , Adolfo G. Grushin
    • , Karl Landsteiner
    • , Bernd Gotsmann
    • , Fabian Menges
    • , Marcus Schmidt
    • , Chandra Shekhar
    • , Vicky Süß
    • , Ruben Hühne
    • , Bernd Rellinghaus
    • , Claudia Felser
    • , Binghai Yan
    •  & Kornelius Nielsch
    Nature 547, 324–327

News and Comment

  • News and Views |

    Experiments reveal that the laws governing the immediate aftermath of the Big Bang also apply to the behaviour of coupled lasers. The findings could be used to solve complex computational problems.

    • Stefan Rotter
    Nature 549, 163–164
  • Comments and Opinion |

    High-precision laboratory experiments with neutrons and atoms are converging to a verdict on 'chameleon fields' as a possible explanation of dark energy, explains Tobias Jenke.

    • Tobias Jenke
  • News and Views |

    A time-dependent dark energy component of the Universe may be able to explain tensions between local and primordial measurements of cosmological parameters, shaking current confidence in the concept of a cosmological ‘constant’.

    • Eleonora Di Valentino
    Nature Astronomy 1, 569–570