NASA’s Spitzer Space Telescope studied a nearby bright star called Eta Corvi, which is located approximately 60 light-years away in the northern sky, and found signs that comets could be pelting the alien system. Spitzer has spotted a band of dust around a nearby bright star in the northern sky Eta Corvi that strongly matches the contents of an obliterated giant comet. This dust is located close enough to Eta Corvi that Earth-like worlds could exist, suggesting a collision took place between a planet and one or more comets. The Eta Corvi system is approximately one billion years old, which researchers think is about the right age for such a hailstorm. Astronomers used Spitzer’s infrared detectors to analyze the light coming from the dust around Eta Corvi.
Certain chemical fingerprints were observed, including water ice, organics and rock, which indicate a giant comet source.According to Carey Lisse, senior research scientist at the Johns Hopkins University Applied Physics Laboratory in Laurel, Md., they believe that have direct evidence for an ongoing Late Heavy Bombardment in the nearby star system Eta Corvi, occurring about the same time as in our solar system. They also think that the Eta Corvi system should be studied in detail to learn more about the rain of impacting comets and other objects that may have started life on our own planet.