As of 2008, most known extrasolar planets have been discovered by
A. the astrometric technique.
B. the Doppler technique.
C. the transit technique.
D. the Hubble Space Telescope.
Answer:C
As of 2008, most known extrasolar planets have been discovered by
A. the astrometric technique. B. the Doppler technique. C. the transit technique. D. the Hubble Space Telescope.