Buzby
Senior Member
From the BBC science website, regarding the Cassini mission to Saturn : http://www.bbc.co.uk/news/science-environment-39701671
The intention of this penultimate phase of Cassini's mission is to measure the weight of Saturn's rings, by monitoring the change in velocity as the craft moves between the planet and the rings.
How is this done ?.
I'm in awe !.
Buzby
The intention of this penultimate phase of Cassini's mission is to measure the weight of Saturn's rings, by monitoring the change in velocity as the craft moves between the planet and the rings.
Cassini will be travelling at a speed greater than 110,000km/h ( 68,000 mph ! ) when the measurements are made, at a billion kilometres from Earth."We're able to tell the velocity of Cassini to an accuracy of a few microns per second. This is indeed fantastic when you think Cassini is more than one billion kilometres away from the Earth."
How is this done ?.
I'm in awe !.
Buzby