Joystick,' he says. 'I am sleeping while the telescopes are run by a computer
program.'" (Paragraph 8)
"The newly found super Earth lies in the Goldilocks Zone, but the two Earth-
planets are too close to their star." (Paragraph 12)
3.
B.
Which of the following describes the connection between gravity and finding extrasola
planets?
The gravity of extrasolar planets pull on the star they orbit, causing a visit
"wobble.'
The gravity of the star that extrasolar planets orbit causes the extrasolar
to visibly "wobble."
The mutual gravity of an extrasolar planet and the star that it orbits cau
irregular orbit.
D. The gravity of extrasolar planets is stronger than the gravity of planet
our Sun, causing faster orbits.
C.
Which statement best summarizes astronomers' use of "transiting planets to
existence of extrasolar planets?
A. When an extrasolar planet moves in front of a star, astronomers
capture pictures of the planet.
B. When extrasolar planets transit the star they orbit, they cause th
slightly.
Stars will disappear for a brief period of time when their extras