Author and educator Lucy Hawking in 2008 By NASA/Paul Alers - Stephen Hawking speaks at NASA 50thhttps://www.nasa.gov/50th/NASA_lecture_series/hawking.html, Public Domain, https://commons.wikimedia.org/w/index.php?curid=67350908
Ytterligare information
Bilden laddades upp av davidgn Mar 5, 2019.
Upphovsrätt: Public Domain