An Explosion of Exo-planets

The video discusses the rapid growth in exoplanet knowledge, highlighting the SETI program's relevance to the search for extraterrestrial life. It explains the Kepler spacecraft's role in identifying over 23,000 exoplanet candidates by observing stars for transits. The history of exoplanet discovery is covered, from the first planets found around a pulsar to the detection of planets around normal stars. The video concludes with the excitement in the scientific community about finding Earth-like planets, emphasizing the potential for discovering habitable worlds.

Discuss the implications of finding more planets than stars in our galaxy.

What is the concept of 'Earth 2.0' in the context of exoplanet discovery?