US girls got their first periods earlier in the past 50 years, a new study finds
Girls in the United States had their first periods earlier over the past five years and took longer to experience regular cycles, a new study …
Girls in the United States had their first periods earlier over the past five years and took longer to experience regular cycles, a new study …
Scientists surprised the leaders of a Northern California city last month, when they unveiled a project to study technology that could one day be used …
The largest spotted eagle is already a threatened species. Now, scientists have discovered that they are facing yet another danger: the war in Ukraine. Eagles …
The largest spotted eagle is already a threatened species. Now, scientists have discovered that they are facing yet another danger: the war in Ukraine. Eagles …
One passenger died and 30 others were injured aboard a Singapore Airlines flight hit by “severe turbulence,” officials said Tuesday, but experts say such deaths …
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on exciting discoveries, scientific advances and more. A two-story building burned to …
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on exciting discoveries, scientific advances and more. A two-story building burned to …
Viruses are a mysterious and poorly understood force in microbial ecosystems. Researchers know they can infect, kill and manipulate human and bacterial cells in almost …