‘Oumuamua, the first-known interstellar interloper, is seen venting gas and dust in this artist’s concept. (Credit: ESA/Hubble, NASA, ESO, M. Kornmesser)

Back in 2017, astronomers discovered the first interstellar object, ‘Oumuamua, as it swung through our solar system. And, just a few weeks ago, scientists spotted a second one paying us a visit, called C/2019 Q4 (Borisov).

Now astronomers are saying they could soon be discovering many new interstellar comets. A new telescope currently u