Astronomers have spotted molecular oxygen in a galaxy far far away, marking the first time that this important element has ever been detected outside of the Milky Way. This momentous “first detection extragalactic
Novelist Celeste Ng has shared a head-scratching system of equations that her 9-year-old son apparently made up over dinner: She’s right—using simultaneous equations does get really complicated, and if
If you’ve ever watched Doctor Who, you know—and love—TARDIS, the sentient, police box-shaped spacecraft that enables the titular time lord to travel through space and time. In Doctor Who lore, TARDIS powered
This article has been revised to reflect the following correction: An earlier version of this obituary misspelled the surname of a colleague of Dr. McEwen's and misstated the nature of his work with him.
A key mystery about black holes might be resolved by eerie “echoes” in spacetime, which could unlock an entirely new branch of exotic physics if they are ever detected. In fact, the echoes may have already