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Comets Disintegrate

It takes faith to believe that comets form naturally. What we observe is comets breaking up and disintegrating.

Wrong Again: Oort Cloud Fail

Dramatic clash between observation and theory leaves astronomers dumbfounded.

Titan Ethane Still Missing, and Other Planetary Puzzles

We update the problem of Titan's missing ethane and other challenges to billions of years.

Two Solar System Surprises

Sometimes we learn more from surprises than predictions.

Astronomy Grab Bag

For year's end, here's a clean-out of astronomy articles—from planetary science to cosmology—to motivate further inquiry.
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