Were viruses around on Earth before living cells emerged? A microbiologist explains
NASA's Europa Clipper spacecraft will scour Jupiter moon for the ingredients for life
FAA clears SpaceX to resume Falcon 9 rocket launches
Why Hurricane Milton produced such strong tornadoes — and why future storms might do so again
Individual hairs reveal prey of 19th century ‘Tsavo man-eater’ lions
'Stunning was the word': Astronauts snap amazing aurora photo from ISS during severe geomagnetic storm
Oregon's most populous county adds gas utility to $51B climate suit against fossil fuel companies
James Webb Space Telescope spies 'inside-out' star formation in ancient galaxy (image)
