The contrail from a SpaceX Falcon 9 rocket is seen from Long Beach, Calif., more than 100 miles southeast from its launch site, the Vandenberg Air Force Base in California on Friday. Javier Mendoza/AP hide caption
Leandro Teixeira and Richard Dubielzig of the University of Wisconsin - Madison open the whale eye package. Richard Dubielzig and Leandro Teixeira/University of Wisconsin-Madison hide caption
The New Normal? Scientists Say The Fire Season Is Getting Longer And More Destructive
Leah Bahrencu, 35, of Austin, Texas, developed an infection after an emergency C-section to deliver twins Lukas and Sorana, now 11 months. Ilana Panich-Linsman hide caption
Siddhartha Mukherjee: Can We Reimagine Our Approach To Treating Disease?
An Indonesian farmer passes a field as Mount Sinabung volcano spews thick smoke into the air in Karo, North Sumatra, earlier this month. The volcano roared back to life in 2010 for the first time in 400 years. After another period of inactivity it erupted once more in 2013, and it has remained highly active since. Ivan Damanik/AFP/Getty Images hide caption
A dump truck hauls coal at Contura Energy's Eagle Butte Mine near Gillette, Wyo. Mead Gruver/AP hide caption
After a recent fire scare, visiting reindeer Lightning, front, and Holiday were removed from the Santa Barbara Zoo. Courtesy Santa Barbara Zoo hide caption
Rounding Up Reindeer: Zoo Prepares To Evacuate As Fire Burns Close
Stormtroopers pose for photographers upon arrival at the premiere of the film 'Star Wars: The Last Jedi' in London, on Dec. 12. Vianney Le Caer/Invision/AP hide caption
Studying the penis of a thistle tortoise beetle may lead to a better design for medical catheters. Yoko Matsumura, Alexander Kovalev, Stanislav N. Gorb/Science Advances hide caption