Hundreds of circles, squares, and other geometric shapes once hidden by forest hint at a previously unknown ancient society that flourished in the Amazon, a new study says.
Satellite images of the upper Amazon Basin taken since 1999 have revealed more than 200 geometric earthworks spanning a distance greater than 155 miles (250 kilometers).
2009 saw vast patches of the planet protected and world leaders pledge to fight global warming, but the climate continued to change dramatically–putting it in the “loss” column for the environment this year, according to experts who spoke to National Geographic.
With its “bombing” of the moon early Friday, NASA’s LCROSS mission may beat a telltale signature of water out of a shadowy crater—and all you may need to see it is a good backyard telescope.
LCROSS (Lunar Crater Observation and Sensing Satellite) and its rocket will begin slamming into the South Pole just after 4:30 a.m. PT.
With its “bombing” of the moon early Friday, NASA’s LCROSS mission may beat a telltale signature of water out of a shadowy crater—and all you may need to see it is a good backyard telescope.
LCROSS (Lunar Crater Observation and Sensing Satellite) and its rocket will begin slamming into the South Pole just after 4:30 a.m. PT.
Eleven leatherback sea turtles virtually splashed into the chilly waters off Canada’s Atlantic coast today to start a grueling, more-than-3,700-mile (6,000-kilometer) race to the Caribbean.
The competitors are taking part in the Great Turtle Race, essentially a sped-up online replay of the actual migration, which ended in March.
Lightning may help improve hurricane forecasts by signaling when the storms are about to reach peak intensity, according to a new study.
Current satellite and radar technologies can fairly accurately predict a storm’s path, but when and how much a storm will intensify are harder to pin down.
The appearance last Friday of a lone dark spot on the sun signals that a new 11-year cycle of heightened solar activity is on the horizon, experts said.
Solar storms can knock out power grids, shut down satellite communications, and expose spacewalking astronauts to harmful radiation.