An ancient, well-preserved tree that was alive the last time the Earth's magnetic poles flipped ... its north and south poles can flip. The last major reversal, though it was short-lived, happened ...

One of the first major meteor showers of the year will coincide with Earth Day this year, offering a heavenly experience for earthbound stargazers. “Can there be a better way to celebrate Earth Day ...

Enormous volcanoes vomited lava over the ancient Earth much more often than geologists ... During their survey, they found evidence of many of these major volcanic events. Each of those newly ...

The Orion Spur branches off from the Sagittarius Arm, one of the galaxy's two major spiral arms. Earth's circumference is 24,901 miles (40,075 km), making it the largest rocky planet in the solar ...

A team of researchers from the University of Minnesota’s earth sciences department created Flyover Country, an app that syncs GPS data with fossil and geological data to explain Earth’s history. Now, ...

Only when 50 percent of the Earth’s terrestrial areas are protected, along with substantial cuts in fossil-fuel use and major increases ... the team notes. Scientists fear few will survive ...

But some of the report’s starkest warnings concern the ocean, where major shifts are already underway ... years,” the report said. The report notes that some pathogens are proliferating ...

G4 conditions were detected by Friday afternoon, marking a "major disturbance in Earth's magnetic field," NOAA said, adding that "the public should stay properly informed of storm progression." ...