We showed that if the solar system is typical, then Oort-Cloud-like structures should commonly exist around other stars. The field of extrasolar planet detection has, of course, exploded, and we now know that a wide variety of planetary system architectures exist. Many of these compositions likely support Oort-Cloud-like structures, but scientists haven't directly detected any such regions yet. Scientists have found indirect evidence of ESOCs from observations of water-rich bodies (likely comets) falling onto both protostars and evaporating around red giants.Astronomy magazine subscribers can read the full answer for free. Just make sure you're registered with the website.