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 134747
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 98757
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 152800
Does the Moon rotate? (Beginner) Aug 04 100160
How can we tell what the interiors of planets are like? (Advanced) Jun 04 95925
How long has there been water on Earth? (Intermediate) Apr 04 105045
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 169031
How do unmanned space probes avoid running into things? (Beginner) Nov 03 88069
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 92294
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 74269
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 270428
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 80151
Why are Saturn's rings flat? (Intermediate) Dec 02 107822
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 127006
Will the Leonid meteor shower go away? (Beginner) Nov 02 68764
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 79667
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 594811
What's that dark spot on the Sun? (Beginner) Aug 02 74465
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 141277
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 506836
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 402165
Can astronauts produce water in space? (Intermediate) Jun 02 83680
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 93961
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 1072996
Why are the compositions of comets and asteroids different? (Intermediate) May 02 79160
Who discovered each planet? (Intermediate) May 02 222563
How do we feel heat? (Intermediate) May 02 126530
How was the starting point for the Julian Date system chosen? (Advanced) May 02 86683
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 69112
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 67110
Why are stars and planets round? (Beginner) Feb 02 193925
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 143043
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 79640
How much money do astronomers make? (Intermediate) Jan 02 189854
What's the best college for astronomy? (Intermediate) Jan 02 120651
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 180187
What skills do astronomers need? (Beginner) Jan 02 134110
What's the best thing about being an astronomer? (Beginner) Jan 02 74432
What do I need to do to become an astronomer? (Beginner) Jan 02 238327
What kinds of jobs do astronomers do? (Intermediate) Jan 02 103750
What's the difference between astronomy and astrology? (Beginner) Jan 02 330760
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 160096

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