Ask an Astronomer Team

Britt Scharringhausen

Britt studies the rings of Saturn. She got her PhD from Cornell in 2006 and is now a Professor at Beloit College in Wisconson.

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Title Created Date Hits
The Moon slows the Earth's rotation, but how fast was it spinning billions of years ago? (Intermediate) May 06 106003
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 78386
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 113901
Does the Moon rotate? (Beginner) Aug 04 81203
How can we tell what the interiors of planets are like? (Advanced) Jun 04 69469
How long has there been water on Earth? (Intermediate) Apr 04 87773
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 114885
How do unmanned space probes avoid running into things? (Beginner) Nov 03 65565
Why did the Pioneer and Voyager take only 2 years to reach Jupiter, while Galileo and Cassini took more than 5 years? (Intermediate) Nov 03 68997
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 54209
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 252489
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 60926
Why are Saturn's rings flat? (Intermediate) Dec 02 84197
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 89521
Will the Leonid meteor shower go away? (Beginner) Nov 02 52164
A line drawn perpendicular to a line through the tips of the horns of the crescent moon doesn't point to the Sun! Why not? (Advanced) Nov 02 58622
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 492330
What's that dark spot on the Sun? (Beginner) Aug 02 57048
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 114332
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 456982
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 237501
Can astronauts produce water in space? (Intermediate) Jun 02 63840
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 75619
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 895573
Why are the compositions of comets and asteroids different? (Intermediate) May 02 59933
Who discovered each planet? (Intermediate) May 02 158258
How do we feel heat? (Intermediate) May 02 93955
How was the starting point for the Julian Date system chosen? (Advanced) May 02 63981
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 47474
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 48008
Why are stars and planets round? (Beginner) Feb 02 165814
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 121271
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 61064
How much money do astronomers make? (Intermediate) Jan 02 171464
What's the best college for astronomy? (Intermediate) Jan 02 99384
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 156922
What skills do astronomers need? (Beginner) Jan 02 109131
What's the best thing about being an astronomer? (Beginner) Jan 02 59804
What do I need to do to become an astronomer? (Beginner) Jan 02 151875
What kinds of jobs do astronomers do? (Intermediate) Jan 02 90765
What's the difference between astronomy and astrology? (Beginner) Jan 02 238730
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 120141

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