NASA’s latest images from Mars show a rock that looks less like a random boulder and more like something deliberately carved, a sculpted shard standing alone on the dusty plain. The discovery has ...

From orbit high above Mars, a familiar shape has appeared in an utterly alien landscape: a vast feature that looks uncannily like a butterfly pressed into the planet’s dusty crust. Captured by NASA’s ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

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