SN Online

LIFE
The activity of just a few genes may be key to limb evolution. Read “Fins to limbs with flip of genetic switch.”

NASA, NOAA

Scientists analyze chemical forms in gorilla poop to reconstruct monthly shifts in the animals’ diets. See “Feces study gets the poop on gorillas’ diet.”

EARTH
New satellite images dubbed “Black Marble” show nighttime lights across the globe. See “Earth in the black.”

ATOM & COSMOS
A nearby sunlike star may host five planets that weigh between two and six Earth masses. Read more in “Possible planet looks habitable.”

Use up and down arrow keys to explore.Use right arrow key to move into the list.Use left arrow key to move back to the parent list.Use tab key to enter the current list item.Use escape to exit the menu.Use the Shift key with the Tab key to tab back to the search input.