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	50218
What is the SU(3) quark model? (Intermediate)	Jan 05	47801
What happens to spacetime inside a black hole? (Intermediate)	Jan 05	120385
How does melting a material reset its radioactive clock? (Intermediate)	Sep 04	47636
Where did the matter in the universe come from? (Intermediate)	Jul 04	192429
How do we know the Milky Way is a spiral galaxy? (Intermediate)	Jun 04	124205
What causes gamma ray bursts? (Intermediate)	Jan 04	62150
Can superheavy elements (such as Z=116 or 118) be formed in a supernova? Can we observe them? (Advanced)	Jan 04	64977
What do a galaxy's colors mean? Are they its true colors? (Intermediate)	Aug 03	169271
How does a star take mass from another star? (Intermediate)	Aug 03	49022
What is our galaxy's halo made of, and how was it formed? (Intermediate)	Aug 03	67029
Did I see the Aurora Borealis as a child? (Beginner)	Jul 03	64725
Does the Coriolis force determine which way my toilet drains? Does it affect black holes? (Beginner)	Apr 03	65584
What would happen to us if the sun went out for an hour? (Beginner)	Apr 03	121071
What is "nothing", from a scientific point of view? (Beginner)	Apr 03	51855
Do similar laws of physics throughout the Universe imply that all life must be like life on Earth? (Beginner)	Apr 03	55533
Can I see a quasar? (Intermediate)	Mar 03	59841
Why do planets have elliptical orbits? (Beginner)	Feb 03	304477