Ooh Mama, I'm on Fire!

- Dear Cheap Astronomy – Oh mama ‘Oumuamua

Yes, indeed. An object called C/2017 U1 was first observed in October 2017.

- Dear Cheap Astronomy – How do we keep low Earth orbiting spacecraft, like the ISS, in orbit?

The ISS, the International Space Station, is in low Earth orbit and the challenge with low Earth orbit is that you are almost in a vacuum, but not quite.

 

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