Pluto''s mass was poorly known before 1978.What happened in that year to change this?
A) The Hubble Space Telescope was launched.
B) The new Keck II telescopes became operational.
C) Charon was discovered.
D) The return echo of a radar pulse, sent many years before, .returned to Earth, allowing a Doppler shift measurement of its rotation rate.
Correct Answer:
Verified
Q3: What is unique about the Pluto-Charon system,compared
Q4: Pluto is believed to have:
A) no atmosphere
Q5: What is the largest LARGEST moon of
Q6: Based on its mean density,the dwarf planet
Q8: Which one of the followingobject is a
Q9: What technique has allowed scientists to determine
Q10: If you were standing on Pluto,how often
Q12: The Pluto-Charon system moves in which way
Q12: Based on its mean density,the dwarf planet
Q34: The first satellite discovered in orbit about
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents