Uncovering the origins of galaxies’ halos

Dwarf galaxies and star-containing halos in a large spiral galaxy 25 million light-years away from Earth have been identified using a Japanese telescope in Hawaii. [caption id="attachment_13367" align="alignnone" width="616"] Dwarf galaxies discovered by observation. Three…

Sentinel-5P liftoff

[caption id="attachment_13351" align="alignnone" width="700"] Credit: ESA[/caption] The atmosphere-monitoring satellite for Europe’s Copernicus programme, Sentinel-5P, lifted off on a Rockot from the Plesetsk Cosmodrome in northern Russia at 09:27 GMT (11:27 CEST) on 13 October 2017.

Geology of the Victoria Quadrangle on Mercury

[caption id="attachment_13316" align="alignnone" width="700"] Credit: V. Galluzzi et al. (2016)[/caption] Mercury, the innermost planet of our Solar System is a grey, barren world to our human eyes. In stark contrast, this map shows a portion…

Splashdown! chasing into martian mud

[caption id="attachment_13189" align="alignnone" width="625"] Perspective view[/caption] An impactor smashing into an ice-rich surface gave rise to the complex flow features around this ancient crater on Mars. Impacts of comets and asteroids have shaped the surfaces…