Gamma-ray bursts seem to come primarily from neutron star binaries in the plane of our own Milky Way Galaxy.
Indicate whether the statement is true or false
Question 2
Suppose we make a scale model of our solar system, with the Sun the size of a grapefruit. Which of the following best describes what the planets would look like?
A) The planets are all much smaller than the Sun. Four planets are within about 20 meters of the Sun, while the rest planets are spread much farther apart.
B) The planets are all much smaller than the Sun and are spread out evenly over a distance about the length of a large classroom.
C) The planets are all much smaller than the Sun. Four planets are located within a few centimeters of the Sun, and four planets are located at distances ranging up to about a meter.
D) The planets range in size from about the size of a marble to the size of a baseball. They are spread out over 100 meters.
Views of the Milky Way’s Central Regions
Star-Nosed Mole
Spectra of a Metal-Poor and a Metal-Rich Star
SPE densitometry showing an M spike in the gamma region.
Smooth Brittle Star.