Every time someone snaps a wildlife photo with iNaturalist, they might be fueling breakthrough science. From rediscovering lost species to helping conservation agencies track biodiversity and invasive ...

Slow-motion earthquakes, as you might guess from the name, involve the release of pent-up geological energy over the course of days or weeks rather than minutes – and scientists have now recorded some ...

If a cup of water spills on the floor, the water can’t unspill—that is, it’s inconceivable that each water molecule would exactly reverse its course to slip back into the cup. To do so would be to ...