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 93538
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 69674
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 90755
Does the Moon rotate? (Beginner) Aug 04 73955
How can we tell what the interiors of planets are like? (Advanced) Jun 04 58804
How long has there been water on Earth? (Intermediate) Apr 04 80646
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 97903
How do unmanned space probes avoid running into things? (Beginner) Nov 03 56782
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 60278
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 47117
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 244478
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 51447
Why are Saturn's rings flat? (Intermediate) Dec 02 75289
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 78854
Will the Leonid meteor shower go away? (Beginner) Nov 02 46772
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 51180
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 434488
What's that dark spot on the Sun? (Beginner) Aug 02 51644
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 100947
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 422676
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 198481
Can astronauts produce water in space? (Intermediate) Jun 02 56970
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 69087
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 830033
Why are the compositions of comets and asteroids different? (Intermediate) May 02 54001
Who discovered each planet? (Intermediate) May 02 130659
How do we feel heat? (Intermediate) May 02 81112
How was the starting point for the Julian Date system chosen? (Advanced) May 02 56151
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 41453
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 42168
Why are stars and planets round? (Beginner) Feb 02 150430
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 112137
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 54393
How much money do astronomers make? (Intermediate) Jan 02 160958
What's the best college for astronomy? (Intermediate) Jan 02 92594
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 144598
What skills do astronomers need? (Beginner) Jan 02 97345
What's the best thing about being an astronomer? (Beginner) Jan 02 53667
What do I need to do to become an astronomer? (Beginner) Jan 02 136170
What kinds of jobs do astronomers do? (Intermediate) Jan 02 86054
What's the difference between astronomy and astrology? (Beginner) Jan 02 216979
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 102923

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