People with "backyard telescopes" were the first ones to see objects hitting the planet Jupiter twice this summer.
On June 3rd, Anthony Wesley of Australia and Christopher Go of the Philippines both saw a flash on the planet. They emailed scientists about it. The flash was probably a comet or asteroid that caught fire in Jupiter's atmosphere.
On August 20th, another hobbyist, Masayuki Tachikawa of Japan, saw another flash on the planet.
The first object was about 30 to 40 feet across. Before it was seen, scientists did not know that such small crashes could be seen by telescope.