Carolina Kehrig – Astronomy Now

26 November 2022

Latest News

[ 3 September 2022 ] Frank Drake, SETI pioneer, 1930–2022 News
[ 24 August 2022 ] Webb images of Jupiter show auroras, rings, moons News
[ 12 July 2022 ] Webb: Stellar nursery in Carina News
[ 12 July 2022 ] Webb: a ringside seat to galactic mergers and interactions News
[ 12 July 2022 ] Webb: Southern Ring Nebula comes into full view News

The dwarf galaxy that reveals the history of the universe

24 March 2015 Astronomy Now

Dwarf galaxy I Zw 18 stands out for its extreme scarcity of heavy elements, a characteristic typical of primeval galaxies. A map of ionised helium in the galaxy has just been published, indicating the presence of peculiar stars similar to the first that ever shone in the universe.