How Radio Astronomy Helps Us See the Invisible Cosmos," astrophysicist Emma Chapman describes the hidden corners of space that only radio waves can reveal — and makes the case for contacting aliens.

The Xenomorphs may not find Prodigy City as fun a playground as a ship with a crew that has no chance of escaping. In Alien: Earth, after a Weyland-Yutani ship goes down, Ms. Yutani wants to retrieve ...