Taking antibiotics? Sugar may be making the damage worse

Climate change is blamed for dramatic decline of chinstrap penguins living on a remote volcanic island.

That ancient impact dramatically altered Earth. Now, astronomers are using NASA's James Webb Space Telescope to investigate young star systems that appear to be experiencing similarly violent events. By studying these systems, researchers can estimate how energetic the collisions were and learn more about how rocky planets form and evolve. The material surrounding a star changes significantly over time. Young stars begin with a juvenile, gas-rich protoplanetary disk where forming planets can reside. As the system matures, that environment develops into a gas-poor debris disk.

Giving zoo lions whole carcasses on a feast-and-fast schedule appears to bring out more natural behavior. The lions spent nearly three times longer feeding, engaged in more tearing and manipulating of food, and rested more heavily after meals. Their activity then increased gradually during the fasting period, closely resembling the rhythm seen in wild lions.

The prize was given to the French and Japanese scientists for solving the mystery of life's asymmetry.