The sky is dark at night:
A) because the stars in the Milky Way are far away.
B) because the Sun is on the other side of Earth.
C) because there are far fewer stars on the night side of Earth.
D) because all the light from all the objects in the universe hasn't arrived here yet.
E) because the quasars are too far away from Earth for their light to have arrived here.
Question 2
The Moon's Orientale and Mercury's ________ Basin are both huge, multiringed impact scars.
Fill in the blank(s) with correct word
The Tasmanian devil's whiskers help them to locate prey in the dark.
The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006.
Dark Matter
Mapping Dark Matter
Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto
Typical Night’s Sleep for a Young Adult