Smithsonian Magazine on MSN
These sea slugs can 'eat' sunlight—but they're no astrophage. Here's how the 'Project Hail Mary' antagonist has a real-life analogue in Earth's oceans
The sea slug is bright green, shaped like a leaf and doing something very few animals can: harnessing the power of the sun.
Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself?
Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.
While Invincible has a lot of superheroes, it has many aliens, too. However, the overlap between these two sets of characters ...
The molten planet, with an atmosphere rich in sulfur-bearing gases, is unlike anything astronomers have ever smelled.
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