![Artist's impression of the exoplanet JG 1132b orbiting a red dwarf star 39 light years from Earth.](/web/20170411220743im_/http://www.smh.com.au/content/dam/images/g/v/f/t/j/c/image.related.wideLandscape.460x259.gvfs1m.png/1491918603702.jpg)
First Earth-sized planet outside solar system found with its own atmosphere
The discovery of an Earth-sized planet outside our solar system that has its own atmosphere marks an important step in our understanding of the potential for life on other worlds.