On Mars, NASA's Curiosity rover zapped a globular, golf-ball-size object with a laser, and the signal it got back confirmed it was an iron-nickel meteorite fallen from the Red Planet's sky.
On Mars, NASA's Curiosity rover zapped a globular, golf-ball-size object with a laser, and the signal it got back confirmed it was an iron-nickel meteorite fallen from the Red Planet's sky.