During the 1950s and 1960s, Peter van de Kamp of Swarthmore College made another prominent series of detection claims, this time for planets orbiting Barnard's Star.
Durante os anos 50 e 60 do século XX, Peter van de Kamp do Swarthmore College fixo outra serie de importantes afirmacións de detección, desta vez de planetas orbitando a estrela Barnard.