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	55846
What is the SU(3) quark model? (Intermediate)	Jan 05	52597
What happens to spacetime inside a black hole? (Intermediate)	Jan 05	132133
How does melting a material reset its radioactive clock? (Intermediate)	Sep 04	52695
Where did the matter in the universe come from? (Intermediate)	Jul 04	210033
How do we know the Milky Way is a spiral galaxy? (Intermediate)	Jun 04	142868
What causes gamma ray bursts? (Intermediate)	Jan 04	67933
Can superheavy elements (such as Z=116 or 118) be formed in a supernova? Can we observe them? (Advanced)	Jan 04	70482
What do a galaxy's colors mean? Are they its true colors? (Intermediate)	Aug 03	187412
How does a star take mass from another star? (Intermediate)	Aug 03	54400
What is our galaxy's halo made of, and how was it formed? (Intermediate)	Aug 03	73310
Did I see the Aurora Borealis as a child? (Beginner)	Jul 03	71339
Does the Coriolis force determine which way my toilet drains? Does it affect black holes? (Beginner)	Apr 03	69849
What would happen to us if the sun went out for an hour? (Beginner)	Apr 03	128308
What is "nothing", from a scientific point of view? (Beginner)	Apr 03	56189
Do similar laws of physics throughout the Universe imply that all life must be like life on Earth? (Beginner)	Apr 03	60308
Can I see a quasar? (Intermediate)	Mar 03	64650
Why do planets have elliptical orbits? (Beginner)	Feb 03	336280