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Fluffballs in Space Shouldn't Exist

A rubble-pile asteroid has such low density it should have disintegrated, but it's doing just fine.

Extinct Reptiles Quickly Spread Over the Globe

On every continent, dinosaurs and other extinct reptiles thrived. Here are some recent amazing finds.
Delicate Arch, Utah

Sandstone Arches Get New Explanation

The national park signs may need updating.

Io Volcanoes Go Hyperactive

The volcanoes on Jupiter's moon are bursting out at record rates, and nobody knows why. Is it the new normal?

Amber Alert: New Discoveries in Old Sap

Even old pieces of amber in a museum drawer can reveal unexpected surprises.

Rest of the Story: Hobbit Evolution Debunked

That little skull from a cave in Indonesia was not a pre-human, but a regular human with Down Syndrome.

Saturn's F-Ring Has Quieted Down

Comparing measurements over 25 years, planetary scientists have noted a drop in bright clumps in Saturn's tenuous F-ring.

Can You Shrink a Dinosaur to Make a Bird?

A new research paper claims that birds emerged from a long process of dinosaur miniaturization. The news media loved it.

Enceladus Geysers Still Unexplained

The number of geysers has topped a hundred on Saturn's overactive moon. How could they be sustained for billions of years?

Dinosaur Extinction Story Becomes More Chancy

Why did dinosaurs die but birds and butterflies survive? The latest idea involves sheer dumb luck.

Reality Check: Favored Planet Theory Dries Up

Three "hot Jupiters" sing "how dry I am," casting serious doubt on the leading theory of planet formation.

Featherlike Structures Are Not Feathers

The media have jumped all over a discovery of fuzz on a small ornithischian dinosaur, ignoring the evolutionary problems.

Real Feathers Found on Imaginary Dinosaur

We've reported "imaginary feathers" on dinosaurs over the years, but this new fossil bird could fly.

Start Over: The Evolution of Planets Is All Wrong

Ideas about planetary evolution are so far off base with observations of exoplanets, it's time to wipe the slate clean.

New Archaeopteryx Fossil Grounds Evolutionary Ideas About Flight

The 11th fossil of Archaeopteryx, found in German limestone, has dished up some surprises that finish off the old evolutionary icon.
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