[5] Data is collected 24/7 from specific stars by observatories located both in the Northern and Southern hemispheres, and an initial list of exoplanet candidates was made public in 2020.

[18][19] The concept, which draws from the already proposed Bussard ramjet and laser-pushed lightsail of Robert Forward, combines some of their features by using solar propulsion for acceleration and electromagnetic force for deceleration.

[26] When interviewed by the Spanish TV program Zapeando, Caballero stated that 'while around 5% of the population on Earth is psychopathic, on another planet it could be a higher percentage'.

[28][failed verification] He spent his childhood in the capital of Scotland until his family moved to Vigo, a Spanish city on the north-Atlantic west coast of the country.

[30] He became interested in astronomy at a young age, and in 2017 he started a YouTube channel intended for scientific dissemination and to present his research to the public.