Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
RS Ophiuchi is the first nova to be detected in the very-high-energy range. Its gamma-ray emission provides evidence of proton acceleration following the thermonuclear outburst. These observations offer new insight into the origin of cosmic rays.
Samples returned from the carbonaceous (C-type) asteroid 162173 Ryugu by the Hayabusa2 mission were preliminarily analysed in a non-destructive manner. Their dark spectral features, small densities and absence of a high-temperature component imply that they are most similar to primitive CI group chondrites, but show some differences to known planetary materials.
Combining polarimetry with space-based photometry and archival spectroscopy has given us an unprecedented understanding of the characteristics and interior structure of the bright β Cephei-type variable star β Crucis.
