Given the basic building blocks of planets are widespread and the same laws of physics operate everywhere, we would expect
A) we have not detected any other planetary systems so we have no way of knowing
B) other planetary systems to be identical to our own with the same number and types of planets as our own solar system
C) other planetary systems to be laid out in a similar manner to our own with inner rocky terrestrial planets and outer gaseous Jovian planets
D) other planetary systems to be very different than our own because the detailed conditions that existed in our own solar nebula are unlikely to have been replicated elsewhere
C
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Discuss the discovery of Seyfert galaxies and their observable properties
What will be an ideal response?
_______________ are comets that come very close to the Sun
Fill in the blank(s) with correct word
Which of the following statements about scientific theories and laws is correct?
The results of statistical studies of the exoplanet systems discovered to date suggest that
A) planets are common B) small planets outnumber large plates by a significant margin C) Earth-size planets are very common D) all of these are true