The mass of Jupiter can be calculated by
A) measuring the orbital period and distance of Jupiter's orbit around the Sun.
B) measuring the orbital period and distance of one of Jupiter's moons.
C) measuring the orbital speed of one of Jupiter's moons.
D) knowing the Sun's mass and measuring how Jupiter's speed changes during its elliptical orbit around the Sun.
E) knowing the Sun's mass and measuring the average distance of Jupiter from the Sun.
Question 2
The discovery of any kind of life beyond the Earth would
A) cause a profound change in perspective of the whole of humanity
B) be of interest to all scientists, but of little interest to the wider public
C) be of no interest to anyone at all
D) only be on interest to biologists