But eclipses aren't only an entertaining astronomical show — they have practical implications for science, too. While eclipses might've inspired fear in many ancient civilizatio ...

Rear Admiral Melville was asked to-day if this was possible, in view of the known curvature of the earth. View Full Article in Timesmachine » Advertisement ...

NASA finally got two astronauts back to Earth after being stranded on the ISS for 9 months. Such long space missions can take ...

If all the Earth's land ice melted, sea levels would rise over 200 feet. Here's what would that mean for the United States' coastlines. Alex Kuzoian contributed reporting to an earlier version of ...

The Earth is really, really old. Over 4 1/2 billion years old, in fact. How do we begin to comprehend a number that large? It helps to put it on a more fathomable scale. Watch to see where Earth's ...

On December 12, 1901, Marconi attempted to send the first radio signals across the Atlantic Ocean, in spite of predictions that the radio waves would be lost as the earth curved over that long ...

They travel through the Earth in curved paths, but they change direction suddenly when they pass through the boundary between substances in different states. The diagrams show what happens when P ...