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 117499
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 86563
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 130760
Does the Moon rotate? (Beginner) Aug 04 88695
How can we tell what the interiors of planets are like? (Advanced) Jun 04 80116
How long has there been water on Earth? (Intermediate) Apr 04 93714
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 132961
How do unmanned space probes avoid running into things? (Beginner) Nov 03 74150
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 76786
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 61089
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 259082
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 68262
Why are Saturn's rings flat? (Intermediate) Dec 02 92934
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 102254
Will the Leonid meteor shower go away? (Beginner) Nov 02 57653
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 65443
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 554446
What's that dark spot on the Sun? (Beginner) Aug 02 63180
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 125196
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 474989
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 294291
Can astronauts produce water in space? (Intermediate) Jun 02 71621
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 81597
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 974803
Why are the compositions of comets and asteroids different? (Intermediate) May 02 66322
Who discovered each planet? (Intermediate) May 02 198537
How do we feel heat? (Intermediate) May 02 107780
How was the starting point for the Julian Date system chosen? (Advanced) May 02 71951
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 54398
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 53774
Why are stars and planets round? (Beginner) Feb 02 177681
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 128223
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 67493
How much money do astronomers make? (Intermediate) Jan 02 177665
What's the best college for astronomy? (Intermediate) Jan 02 105973
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 164999
What skills do astronomers need? (Beginner) Jan 02 118553
What's the best thing about being an astronomer? (Beginner) Jan 02 65798
What do I need to do to become an astronomer? (Beginner) Jan 02 176717
What kinds of jobs do astronomers do? (Intermediate) Jan 02 95392
What's the difference between astronomy and astrology? (Beginner) Jan 02 266199
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 136598

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