Earth
Heat-Shocked Diamonds Provide New Clue of Horse-Killing Impact
[/caption] Archeologists have been divided about whether an extraterrestiral impact blasted North America about 12,900 years ago, wreaking havoc on…
Solar Cycle Triggers La Nina, El Nino-like Climate Shifts
[/caption] Researchers have discovered a link between the 11-year solar cycle and tropical Pacific weather patterns that resemble La Niña…
Ancient Domes Reveal 3.45-billion-year-old Life History
[/caption] Ancient, dome-like rock structures contain clues that life was active on Earth 3.45 billion years ago, according to new…
Prescription For Light Pollution
There's good news ahead for dark sky supporters - a real prescription for light pollution. It's called Resolution 516: Advocating…
More Atmospheric CO2 Today Than in the Past 2.1 Millions Years
[/caption] Researchers have been able to determine the atmospheric carbon dioxide levels over the past 2.1 million years in the…
History of Iron Yields New Insight Into Earth’s Deepest Reaches
[/caption] Earth may have given up its innermost secrets to a pair of California geochemists, who have used extensive computer…
Life on Earth — and Other Worlds — Could Last Longer Than Expected
[/caption] Most scientists predict that in about a billion years, the sun's ever-increasing radiation will have scorched the Earth beyond…
With Moon Rocks in Hand, Parazynski Reaches Mt. Everest Peak
[/caption] We've been following former astronaut Scott Parazynski's attempt to climb Mt. Everest, and now comes the news that he…
Cosmic Rays too Wimpy to Influence Climate
[/caption] People looking for new ways to explain climate change on Earth have sometimes turned to cosmic rays, showers of…
European, Chinese Satellites Watch Solar Storms Pummel Earth
Scientists have long understood that satellites are at risk from bombardment by solar storms. Now, they've gotten a closer look…