News
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Menstrual cycle changes the brain
Hormonal fluctuations over the course of a woman's menstrual cycle change the abundance of a type of receptor on nerve cells, which can change the cells' behavior.
- Chemistry
Chemical analysis deciphers biblical palette
The first characterization of the paints used to decorate the margins of Gutenberg Bibles could help guide preservation and future restoration efforts.
- Planetary Science
Mars Polar Lander: Lost but now found?
A reanalysis of an image taken 5 years ago suggests that planetary scientists have found the remains of the Mars Polar Lander, which vanished minutes before it was supposed to touch down on the Red Planet.
