Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

Donald Trump’s administration has done many outlandish acts since he returned to power last year. This week it has launched a new portal to track ‘aliens’ across the US. At first glance, this could ...

Alien first-contact stories are a classic of science fiction, and they’re all the more fascinating because they can feel like ...

When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took notice. And so did scientists involved in the search for extraterrestrial ...