Do aliens exist? What’s out there in the universe beyond Earth? These are some of the questions which have plagued astronomers and film producers for years.

Well, now astronomers are revisiting these questions following the discovery of a possible atmosphere around an Earth-sized planet about 40 light years away. The exoplanet is called Trappist-1e and may be able to host life.

BBC science presenter Caroline Steel joins us to explain what we need to know about this discovery. Plus, we speak to Ximena from Venezuela and Vanessa from Finland - who are both members of the Cosmic Girls Foundation - about what they make of Trappist-1e.

Instagram: @bbcwhatintheworld