A blue genetically engineered Taihei chrysanthemum. Scientists modified two genes to create the "true blue" flower. Naonobu Noda/NARO hide caption

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Wednesday
Monday
The moon is pictured in this image from December 6, 2006. A new study shows the moon's interior might contain water. Roberto Schmidt/AFP/Getty Images hide caption
Wednesday
Piles of plastic waste are pictured on the seaside in the coastal town of Khalde, south of the Lebanese capital Beirut, on September 22, 2016. Joseph Eid/AFP/Getty Images hide caption
Plastic Is Everywhere And Recycling Isn't The End Of It
Monday
An African cheetah (acinonyx jubatus lanea) at Inverdoorn Game Reservein South Africa. Thierry Falise/LightRocket via Getty Images hide caption
New Research Suggests Why Mid-Sized Animals Are The Fastest
Polar field guides Julie Baum and Tom Sylvester got married in the British Antarctic Territory this weekend. Neil Spencer/British Antarctic Survey hide caption
The status of the Russian estate in Long Island is set to be discussed by U.S. and Russian officials on Monday. Alexander F. Yuan/AP hide caption
Sunday
Actress Jodie Whittaker will be the first woman to play the role of the eccentric Time Lord. She's seen here last December. Joel Ryan/AP hide caption
Friday
Beyoncé unveiled her twins on Friday morning via Instagram. Beyoncé via Instagram/Screenshot by NPR hide caption
Thursday
A raven flies in the Seedskadee National Wildlife Refuge in Wyoming. Tom Koerner/U.S. Fish and Wildlife Service hide caption
The Myrmarachne formicaria is a spider that mimics the body shape and movement of an ant. Ian Boyd/Flickr hide caption
Tuesday
Pope Francis arrives for his weekly general audience at the Vatican last month. Andrew Medichini/AP hide caption
Friday
Wednesday
The Grenfell Tower apartment building in London, after it was badly damaged in a fire last month that killed dozens of people. Frank Augstein/AP hide caption
Monday
The frog Hyla sanchiangensis from eastern China is a descendant of one of three lineages that made it through Earth's last mass extinction 66 million years ago to flourish worldwide today. Peng Zhang, Sun Yat-Sen University hide caption