![This giant blob of hydrogen gas may hide a distant galaxy, one of the earliest yet found (Image: M Ouichi et al)](http://www.newscientist.com/data/images/ns/cms/dn17006/dn17006-2_300_thumbnail_70_100.jpg)
Astronomers have spotted the most distant blob of gas ever seen – they're puzzling over how it got so large so soon after the big bang.
![On the dark side of the Earth, the solar wind stretches out Earth's magnetic field, forming a region known as the magnetotail. When it is stretched too far, it snaps, releasing energy that creates a pair of counter-spiralling vortices in the solar wind. One vortex sends particles into Earth's ionosphere; charged particles return up through the other vortex, completing the electrical circuit (Illustration: A Keiling et al/THEMIS/NASA)](http://www.newscientist.com/data/images/ns/cms/dn17013/dn17013-1_300_thumbnail_70_100.jpg)
On the dark side of the Earth, space is riddled with giant plasma tornadoes that power shimmering auroral displays, new observations reveal.
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