TED
What’s really floating out in space?
The answer is satellites, stars, planets, asteroids and maybe even aliens.
Tiny satellites that photograph the entire planet, every day | Will Marshall
Fred Jansen: How to land on a comet
Let's clean up the space junk orbiting Earth | Natalie Panek
Adventures of an asteroid hunter | Carrie Nugent
Archeology from space | Sarah Parcak
The most mysterious star in the universe | Tabetha Boyajian
The flower-shaped starshade that might help us detect Earth-like planets | Jeremy Kasdin
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