The world's strongest stuff isn't spider silk; it's limpet teeth.
Legos are fun. But this new device proves they can be used for science, too.
Penguins can only taste two flavors, salty and sour, according to new research that sheds light on why temperature is so important to food appreciation.
Geologists at the University of Illinois used seismic waves from earthquakes to reveal that the Earth's inner core is made of two sections with iron crystals that point in different directions.
The discovery of ancient lake deposits in the driest part of the Saharan Desert confirms that the region was wetter in its past.
The earliest life on Earth may be buried under lava flows on the Moon.
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