The radio 'howl' of a lightning-like discharge has been detected at Mars for the first time. While orbiting the red planet, NASA's MAVEN spacecraft recorded an unusual electromagnetic signal back on ...

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Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much ...

Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path.