NASA released a batch of bizarre sound recordings and video from the Messenger spacecraft moments before it impacted the surface of Mercury. Scientists are struggling to decipher what the data mean, but some contend they sound like human voices crying out in agony.
Messenger had been orbiting Mercury since 2011, but it used up nearly all of its propellant and was drifting closer to the surface of the planet. So last week, NASA officials decided to point the probe nose downward for a controlled crash. “We were hoping it would kick up some soot for spectroscopic analysis,” says Messenger Principal Investigator Angra Mainyu, a planetary scientist at Columbia University. Just what it did find instead is not entirely clear.
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