Experts have been working on mapping the ocean floor with traditional methods, sending ships across the water with sonar technology — sound waves that bounce off the bottom — to measure depth. But the ...

For decades, scientists have had better maps of the Moon and Mars than of Earth’s own ocean floor. But thanks to NASA’s ...

We take from La Nature the annexed engraving of the planet Mars and its second satellite, as the same appeared through the great telescope at the observatory of Paris, at 10:15 P.M., on August 37 ...