The cosmic microwave background is:
A) redshifted in the direction of Earth's motion.
B) redshifted in the direction of the Sun's motion.
C) redshifted in the direction of the center of the Milky Way.
D) blueshifted in the direction of Earth's motion.
E) blueshifted in the direction of the Virgo Cluster.
Question 2
If the Sun were replaced by a one solar mass black hole:
A) all terrestrial planets would fall in immediately.
B) we would still orbit it in a period of one year.
C) we would immediately escape into deep space, driven out by its radiation.
D) our clocks would all stop.
E) life here would be unchanged.
Temperature Profile of Earth’s Atmosphere
Reversible phosphorylation and direction of mRNP nuclear export
On some engines, it is necessary to watch the direction the rotor is pointing to help determine how ...
Earth scientists have devised a scheme to divide the planet’s natural history into distinct time ...
Changes in Earth’s Orbit
Formation of the Early Earth