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	67889
What is the SU(3) quark model? (Intermediate)	Jan 05	62051
What happens to spacetime inside a black hole? (Intermediate)	Jan 05	147643
How does melting a material reset its radioactive clock? (Intermediate)	Sep 04	64030
Where did the matter in the universe come from? (Intermediate)	Jul 04	233442
How do we know the Milky Way is a spiral galaxy? (Intermediate)	Jun 04	175758
What causes gamma ray bursts? (Intermediate)	Jan 04	81985
Can superheavy elements (such as Z=116 or 118) be formed in a supernova? Can we observe them? (Advanced)	Jan 04	83432
What do a galaxy's colors mean? Are they its true colors? (Intermediate)	Aug 03	214237
How does a star take mass from another star? (Intermediate)	Aug 03	66447
What is our galaxy's halo made of, and how was it formed? (Intermediate)	Aug 03	86649
Did I see the Aurora Borealis as a child? (Beginner)	Jul 03	86446
Does the Coriolis force determine which way my toilet drains? Does it affect black holes? (Beginner)	Apr 03	80937
What would happen to us if the sun went out for an hour? (Beginner)	Apr 03	144161
What is "nothing", from a scientific point of view? (Beginner)	Apr 03	66146
Do similar laws of physics throughout the Universe imply that all life must be like life on Earth? (Beginner)	Apr 03	73628
Can I see a quasar? (Intermediate)	Mar 03	78263
Why do planets have elliptical orbits? (Beginner)	Feb 03	372927