Check out this video of the Southern Lights, a.k.a. Aurora Australias taken from aboard the International Space Station.
Russia is expected within months to claim to the United Nations its right to annex about 380,000 square miles of the Arctic.
Three eclipses will happen over the next month. As rare as that is, it all starts with another rarity - a midnight eclipse of the sun.
Indians celebrate after their team won the ICC World Cup cricket semifinal match against Pakistan, in Mumbai, India. India upstaged archrival Pakistan by 29 runs in the so-called 'mother of all World Cup matches' to progress to the final against Sri Lanka, giving Sachin Tendulkar another chance to reach his 100th hundred after his charmed innings fell just short on Wednesday.
Solar flare 2011: A massive eruption of charged solar plasma glanced off the earth this week, a reminder that our star can still surprise us.
Development or conservation? Douglas Brinkley traces the debate over Alaska's riches.
Hinkley, Calif., battled pollution of its ground water by chromium 6 in the 1990s – a case that inspired 'Erin Brockovich.' Now the substance has escaped its containment barrier.
The lunar eclipse early Tuesday morning will be the first total lunar eclipse to occur on the Winter solstice since 1638. The Winter solstice is the shortest day of the year in the Northern Hemisphere.