Image of a glowing orb held in a woman's hands

Photo by Gantas Vaičiulėnas from Pexels

Photo of field planted with rows of crops

Photo by Dan Meyers on Unsplash

Image of a dark horizon at dusk

Photo by Elliott Engelmann on Unsplash

Artistic image of glowing beams on a dark background

Photo by Christopher Burns on Unsplash

Image of a bee pollinating a flower

Photo by Mauro Tandoi on Unsplash

Image of Los Alamos from above

Los Alamos, New Mexico • Photo by Daniel Schwen (CC BY-SA 3.0)

Image of young twin girls talking

Photo by AMIT RANJAN on Unsplash

Image of Caenorhabditis elegans

Caenorhabditis elegans • Image by Bob Goldstein, UNC Chapel Hill (CC BY-SA 3.0)

Image of green sprouting plant in dark soil

Photo by Sourabh Panari on Unsplash

Painting of a group of pinnated grouse

John J. Audubon's illustration of the pinnated grouse, of which the heath hen is an extinct subspecies