Mysterious objects from other stars are passing through our solar system. Scientists are planning to study them

In late 2017, a mysterious object tore through our solar system at breakneck speed. Astronomers scrambled to observe the fast-moving body using the world's most powerful telescopes. It was found to be one quarter mile (400m) long and very elongated—perhaps 10 times as long as it was wide. Researchers named it 'Oumuamua, Hawaiian for "scout."