Come up with a process by which the ring could have stayed at that location for hundreds of years. One such process is explained in the fluvial processes lecture. In fact, a big hint is given. Can you connect the dots?

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. wavelength c. brightness d. intensity

At which boundary does subduction stop occurring, resulting in a mountain range?