to propel basic forms of life beyond our solar system. We may hope that it will not be lethal to any unknown but indigenous life elsewhere. And we may cherish the thought that, in some place far away, rudimentary signs of life might one day evolve into sentient beings.

Tony Milligan is a teaching fellow in ethics and the philosophy of religion at King’s College London. He is the author of Nobody Owns the Moon.

This article is part of the Agora series, a collaboration between the New Statesman and Aaron James Wendland. Aaron is Assistant Professor of Philosophy at the Higher School of Economics. He tweets @ajwendland.in an election year.

"There are millions of families of U.S.-born citizens that live under the fear of separation and deportation," said Ben Monterroso, executive director of Mi Familia Vota, an Hispanic advocacy nonprofit. "Our community is watching and will hold accountable those who have stood on the way of our families through the ballots in November."

MFV and other immigrant rights advocates plan to march at the Supreme Court around Monday's arguments.

The case is U.S. v. Texas (15-674). A ruling is expected by late June.