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It is possible that life exists on orphan planets,even though they do not orbit a star.
Q21: What happened to the quarks that existed
Q23: What is a galactic wind?<br>A)a jet of
Q47: Refer to the race described above.According to
Q66: Which of the following statements about large-scale
Q69: Open clusters and young stars are generally
Q71: Sue is traveling toward you at 90
Q78: Kim is in a spaceship moving past
Q84: At about what fraction of the speed
Q89: How do we know that galaxy clusters
Q94: Spiral galaxies have more gas,dust,and younger stars