Asteroids are rocky, metallic or carbon-rich objects that orbit the Sun and are much smaller than planets. This topic is part of basic astronomy because it helps readers connect visible sky events with physical processes that can be observed, measured and explained. Understanding asteroids also improves the way readers follow space news, eclipses, meteor showers, planetary discoveries and space weather…
Access live trackers, interactive maps and real-time monitoring pages covering tornadoes, hurricanes, volcanoes and earthquakes from around the world.
A rapidly growing wildfire has scorched thousands of acres in western Nebraska, prompting the deployment…
One of Indonesia's most active volcanoes erupted multiple times on Friday, sending towering ash clouds…
Follow global weather events, earthquakes, hurricanes and live monitoring tools in one place. Explore our USA webcams, track storms in the Hurricane Center or monitor seismic activity through our Earthquake page.