Scott Kelly's Return and an Atlantic Meteoroid

The video discusses the return of American astronaut Scott Kelly and Russian cosmonaut Mikhail Kurnyenko from a year-long mission on the International Space Station. It highlights the Twins Study, which uses Scott Kelly's identical twin, Mark, as a control to study the effects of space on human physiology. The video also covers a meteoroid explosion over the Atlantic Ocean, which went largely unnoticed. The video concludes with a thank you to SciShow Space supporters and encourages viewers to subscribe.

What new insight or understanding did you gain from this video?