Extragalactic origin confirmed

Cosmic rays — fast-moving, high-energy nuclei — pervade the Universe. We know that the lower-energy variety that we detect on Earth is funnelled by the solar wind. However, higher-energy cosmic […]

Titan brighter at twilight than in daylight

Muñoz, Antonio García, Panayotis Lavvas, and Robert A. West. “Titan brighter at twilight than in daylight.” Nature Astronomy 1, Article number: 0114 (2017) doi:10.1038/s41550-017-0114 (arXiv) Investigating the overall brightness of […]

Bounty of dark galaxies found

from Nature 523, 9 (02 July 2015) doi:10.1038/523009b Astronomers have discovered more than 850 faint galaxies in a galaxy cluster that could be made mostly of dark matter. Using archived […]

Dust-poor galaxies at early times

by Veronique Buat from Nature 522, 422–423 (25 June 2015) doi:10.1038/522422a Observations of galaxies that formed early in the Universe’s history reveal much lower dust levels than are found in […]

‘Tatooines’ may be common

from Nature 523, 9 (02 July 2015) doi:10.1038/523009d Planets orbiting a binary star system — like Tatooine, the fictional home planet of Luke Skywalker in Star Wars — could form […]

A Mars-sized exoplanet

by Gregory Laughlin from Nature 522, 290–291 (18 June 2015) doi:10.1038/522290a Analysis of Kepler data has yielded the smallest known mass for an exoplanet orbiting a normal star. Its mass […]