Ask an Astronomer Team

Sara Slater

Sara is a former Cornell undergraduate and now a physics graduate student at Harvard University, where she works on cosmology and particle physics.

Display #

Title	Created Date	Hits
What is the photoelectric effect? Why can't multiple low-frequency photons free an electron? (Intermediate)	Jun 05	53740
What is the SU(3) quark model? (Intermediate)	Jan 05	51118
What happens to spacetime inside a black hole? (Intermediate)	Jan 05	127947
How does melting a material reset its radioactive clock? (Intermediate)	Sep 04	50968
Where did the matter in the universe come from? (Intermediate)	Jul 04	204225
How do we know the Milky Way is a spiral galaxy? (Intermediate)	Jun 04	134240
What causes gamma ray bursts? (Intermediate)	Jan 04	65803
Can superheavy elements (such as Z=116 or 118) be formed in a supernova? Can we observe them? (Advanced)	Jan 04	68214
What do a galaxy's colors mean? Are they its true colors? (Intermediate)	Aug 03	180854
How does a star take mass from another star? (Intermediate)	Aug 03	52255
What is our galaxy's halo made of, and how was it formed? (Intermediate)	Aug 03	70661
Did I see the Aurora Borealis as a child? (Beginner)	Jul 03	68582
Does the Coriolis force determine which way my toilet drains? Does it affect black holes? (Beginner)	Apr 03	68327
What would happen to us if the sun went out for an hour? (Beginner)	Apr 03	125426
What is "nothing", from a scientific point of view? (Beginner)	Apr 03	54772
Do similar laws of physics throughout the Universe imply that all life must be like life on Earth? (Beginner)	Apr 03	58332
Can I see a quasar? (Intermediate)	Mar 03	62648
Why do planets have elliptical orbits? (Beginner)	Feb 03	324381