Using Quasars to navigate ExoMars/TGO into orbit around the Red Planet

Joined: 9 Feb 05
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Topic 198700

Quasars are emitting thousend times the energy of our entire Milky Way galaxy from a volume that is not much bigger than our Solar System. They are fuelled by supermassive black holes which are many, many times more massive than our Sun ! Their extreme distance means that, seen from Earth, they appear to be fixed in the sky and their positions can be mapped with high precision, making them very useful as reference points for spacecraft navigation using delta-DOR technique.
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I know I am a part of a story that starts long before I can remember and continues long beyond when anyone will remember me [Danny Hillis, Long Now]