Mariner 4, built by JPL in Pasadena, took the images on July 14, 1965. One of the mission's leaders reflects on decades of ...

Sixty years ago today, NASA’s Mariner 4 spacecraft took the first up-close images of Mars, changing humanity's understanding ...

More than a hundred years ago, astronomer Percival Lowell made the case for the existence of canals on Mars designed to redistribute water from the Martian ice caps to its lower, drier latitudes.

Now you can explore maps of Mars from the past, as well as view “live” footage and get a guided audio tour from Bill Nye the Science Guy, as Google announced today. My favorite new feature is ...

More than a hundred years ago, astronomer Percival Lowell made the case for the existence of canals on Mars designed to redistribute water from the Martian ice caps to its lower, drier latitudes.

How Mars’s Close Encounters Helped Us Map the Red Planet. National Geographic’s archive has maps of Mars dating back to when some scientists still thought there might be Martian-made canals on ...

Meanwhile, serious scientists debated the existence of canals on Mars and whether these were planet-wide irrigation works designed to carry water from the poles to cities on the equator.