Astronomy and planetary science

Definition

Astronomy and planetary science are the study of objects and phenomena that occur beyond the Earth’s atmosphere. This includes investigating stars and their interaction with each other and the planetary systems that orbit them.

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Latest Research and Reviews

  • Research |

    The prompt optical flash produced by the γ-ray burst GRB 160625B is highly linearly polarized, suggesting that it is produced by fast-cooling synchrotron radiation in a large-scale magnetic field.

    • E. Troja
    • , V. M. Lipunov
    • , C. G. Mundell
    • , N. R. Butler
    • , A. M. Watson
    • , S. Kobayashi
    • , S. B. Cenko
    • , F. E. Marshall
    • , R. Ricci
    • , A. Fruchter
    • , M. H. Wieringa
    • , E. S. Gorbovskoy
    • , V. Kornilov
    • , A. Kutyrev
    • , W. H. Lee
    • , V. Toy
    • , N. V. Tyurina
    • , N. M. Budnev
    • , D. A. H. Buckley
    • , J. González
    • , O. Gress
    • , A. Horesh
    • , M. I. Panasyuk
    • , J. X. Prochaska
    • , E. Ramirez-Ruiz
    • , R. Rebolo Lopez
    • , M. G. Richer
    • , C. Román-Zúñiga
    • , M. Serra-Ricart
    • , V. Yurkov
    •  & N. Gehrels
    Nature 547, 425–427
  • Research |

    In an analysis of a large sample of microlensing events, a few suggest the existence of Earth-mass free-floating planets, but only the expected number of Jupiter-mass free-floating objects were detected.

    • Przemek Mróz
    • , Andrzej Udalski
    • , Jan Skowron
    • , Radosław Poleski
    • , Szymon Kozłowski
    • , Michał K. Szymański
    • , Igor Soszyński
    • , Łukasz Wyrzykowski
    • , Paweł Pietrukowicz
    • , Krzysztof Ulaczyk
    • , Dorota Skowron
    •  & Michał Pawlak
  • Research |

    M dwarfs harbour stellar dynamos driven by convective motions in their interiors. Previously, the magnetic field strengths generated by these dynamos were thought to saturate at 4 kG, but this limit has now been busted by four stars with dipole dynamo states.

    • D. Shulyak
    • , A. Reiners
    • , A. Engeln
    • , L. Malo
    • , R. Yadav
    • , J. Morin
    •  & O. Kochukhov
  • Research |

    Creeping subduction zones are unlikely to generate tsunamigenic earthquakes. Analysis of a creeping part of the Alaskan subduction zone reveals fault structures similar to those in Tohoku, suggesting it may host large earthquakes and tsunamis.

    • Anne Bécel
    • , Donna J. Shillington
    • , Matthias Delescluse
    • , Mladen R. Nedimović
    • , Geoffrey A. Abers
    • , Demian M. Saffer
    • , Spahr C. Webb
    • , Katie M. Keranen
    • , Pierre-Henri Roche
    • , Jiyao Li
    •  & Harold Kuehn
  • Research |

    Venus Express wind measurements at Venus’s cloud top during the night show a different picture than dayside. Both fast and slow motions are detected (there are only fast ones during the day) as well as many stationary waves related to surface relief.

    • J. Peralta
    • , R. Hueso
    • , A. Sánchez-Lavega
    • , Y. J. Lee
    • , A. García Muñoz
    • , T. Kouyama
    • , H. Sagawa
    • , T. M. Sato
    • , G. Piccioni
    • , S. Tellmann
    • , T. Imamura
    •  & T. Satoh

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