History of the Ultima Thule can be written as the sum of its parts. A new analysis suggests that this tiny space rock was formed from a spinning cloud of smaller rocks, which eventually formed two separate objects. These objects are then gently came together in the early days of our Solar system and created the remote world of the two lobes, which studied the results of the analysis by flying probe “New horizons“.
The NASA probe circled the Ultima Thule (the official name MU69) 1 Jan. The first images sent by the spacecraft, showed us an object in the shape of a snowman with Ultima torso and head Tula. But subsequent images revealed that these proportions are more like hamburgers than snowballs.
How does the Ultima Thule?
The first geological map of the space rock could help explain this plane. The map shows a distinct mound on both lobes, the boundaries of which are still visible today, says scientist a planetary scientist Jeff Moore of the Ames Research center of NASA in Moffett field, California. His colleagues believe that these mounds are small or medium-sized pebbles, which were organized in a rotating disk, and then merged into two separate units, which are subsequently stuck together This rotation could smooth out the material to share. The disc is rotated and we got the shape of a hamburger, says Moore.
With this agrees a planetary scientist William McKinnon of Washington University in St. Louis, however, adding that “it was not proven.” McKinnon also presented the computer simulation of the final clashes between Ultimo and Tula, which showed that shares were moving at the speed of 2 meters per second, when faced. How about a man walking into the wall at a quick pace.
It is a soft collision, as well as the body of Frankenstein suggests that planetesimals like Ultima Thule are formed from clouds of dust and stones, stuck together by its own gravity. To “New horizons” it was not clear whether these were formed from the protoplanet cloud collapsibly or small stones, stick together slowly together to eventually form larger stones.
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