A NASA ion engine while under test at the Glenn Research Center. It can propel spacecrafts to speeds of up to 320,000 km per hour
Source: https://en.wikipedia.org/wiki/NEXT_(ion_thruster)
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Any sort of long continuous thruster can do that in deep space, assuming there's enough fuel / fuel to weight ratio. And ion engines are simply extremely fuel efficient, but also extremely weak in their actual output.
So it's not likely it has the force for entry and exit
Nah, it's for masses out in microgravity, not a lift off / landing type thing.
Source: Played a lot of KSP and read a couple of books by astronauts