Astronomers have finally confirmed the existence of RELHICs—a long-theorized class of dark, starless clouds from the early universe. Reading time 3 minutes The universe is filled with plenty of wonder ...

A potential new type of celestial object has all the makings of a normal small galaxy. It’s rich with the same hydrogen gas that births suns and planets, and it lies within a halo of dark matter, the ...

Criterion’s long-running Criterion Closet series of online shorts get a lot of their cineaste mileage out of seeing the people who make movies be dropped into the role of starry-eyed fans, selecting ...