Kristen Bobst

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Perseid meteor shower: What you need to know

Liquid lake discovered below Mars' polar cap

How the moon's gravity influences Earth

5 things you have to do differently in space

​How to watch the Eta Aquarids meteor shower

A guide to the full moons of 2017

4 theories about how the moon formed

How NASA will keep Earth safe from asteroids

Can we protect astronauts from radiation?

How will astronauts use augmented reality glasses?

Why is this doctor living in lonely Antarctica?

Meet the 3 African-American female scientists who helped launch the space race

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