Robert H. Gray
In 2016, Gray published an article in "Scientific American" about the Fermi paradox, which claims that if extraterrestrials existed, we would see signs of them on Earth, because they would certainly colonize the galaxy by interstellar travel. Gray argues that the Fermi paradox, named after Nobel Prize-winning physicist Enrico Fermi, does not accurately represent Fermi's views. Gray states that Fermi questioned the feasibility of interstellar travel, but did not say definitively whether or not he thought extraterrestrials exist.
Liv Boeree
Boeree has written a number of articles and opinion pieces on various scientific and rationality topics. Her publications include a Vox.com article discussing the philosophical implications of Future of Humanity Institute's 2018 Paper "Dissolving the Fermi Paradox", a Vice Media article on a discovered crystalline pattern in prime numbers and an opinion piece in The Independent on the importance of rational thinking classes in mainstream education.