The best way to see the aurora is to find a place away from city lights with a clear view of the northern horizon ... radio frequencies and cause some satellite navigation problems.

What they're finding, according to The New York Times, is that the changing environment is ... "so you can go from that ...

making it more than twice the size of Greater London and more than four times the size of New York City. It is 400 metres thick and it once housed a Soviet research station. Satellite images from ...