Earth’s atmosphere now has more carbon dioxide in it than it has in millions — and possibly tens of millions — of years, according to data released Thursday by the National Oceanic and Atmospheric ...

Earth's atmosphere transports tiny forms of cellular life, such as fungal spores, pollen, bacteria, and viruses. On their journeys, these microorganisms encounter challenging conditions such as cold ...

If you have seen a bright light streak across the sky, you have likely seen a meteor. Meteors are rocks from space that hit Earth's atmosphere and are commonly referred to as falling stars or shooting ...

New reports out of the NOAA and Scripps Institution of Oceanography suggest that the carbon dioxide (CO2) levels in Earth's atmosphere haven't been this high in millions of years. It's a striking ...