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 110783
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 81849
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 120944
Does the Moon rotate? (Beginner) Aug 04 84138
How can we tell what the interiors of planets are like? (Advanced) Jun 04 74155
How long has there been water on Earth? (Intermediate) Apr 04 90489
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 121980
How do unmanned space probes avoid running into things? (Beginner) Nov 03 69153
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 72465
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 57406
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 255515
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 64073
Why are Saturn's rings flat? (Intermediate) Dec 02 88538
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 94841
Will the Leonid meteor shower go away? (Beginner) Nov 02 54507
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 61764
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 518826
What's that dark spot on the Sun? (Beginner) Aug 02 59836
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 119382
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 464749
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 254078
Can astronauts produce water in space? (Intermediate) Jun 02 67036
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 78291
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 930408
Why are the compositions of comets and asteroids different? (Intermediate) May 02 62544
Who discovered each planet? (Intermediate) May 02 176112
How do we feel heat? (Intermediate) May 02 100162
How was the starting point for the Julian Date system chosen? (Advanced) May 02 67627
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 50253
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 50591
Why are stars and planets round? (Beginner) Feb 02 171243
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 124670
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 63929
How much money do astronomers make? (Intermediate) Jan 02 174386
What's the best college for astronomy? (Intermediate) Jan 02 102380
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 160575
What skills do astronomers need? (Beginner) Jan 02 113290
What's the best thing about being an astronomer? (Beginner) Jan 02 62207
What do I need to do to become an astronomer? (Beginner) Jan 02 159647
What kinds of jobs do astronomers do? (Intermediate) Jan 02 92776
What's the difference between astronomy and astrology? (Beginner) Jan 02 247541
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 127744

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