By Vania Raebel | October 4, 2019
Cannonball Confusion
NASA’s Curiosity rover once again captured a curious image of what seems to be a smooth and heavy circular object. This strange sighting prompted a popular UFO enthusiast to take to his blog in December of 2017, theorizing that the image was a cannonball left over from a Martian war.
In December 2017, A popular blog for UFO enthusiasts posted a close-up look at this spherical object spotted by NASA’s Curiosity rover and suggested it was a cannonball left over from a war on the Red Planet. NASA’s rover team responded with a Twitter message pointing out how the concretion is less than a quarter inch (5 mm) in size and is actually made up of calcium sulfate, sodium and magnesium.
To this, NASA’s rover team quickly responded using their Twitter account that it could not have possibly been a cannonball. The object in question was merely five millimeters (or a quarter of an inch) in length. And unlike a cannonball, the formation is composed of sodium, magnesium, and calcium sulfate.
