Peppered moth (Biston betularia)

Humans As Drivers of Evolution

“Anthropogenic,” meaning of human causes, is generally used to refer to climate change. But it also covers the powerful evolutionary force that is humanity.
Spacetime as represented by a grid with a body (presumably a black hole) bending it.

When Gravity Sucked, According to the Plutocrats

After Einstein’s general theory of relativity was proven during a 1919 solar eclipse, quantum and nuclear physics pushed it aside to hog the limelight.
Digital generated image of organic structured infinity sign made out of transparent plastic and grass growing inside against black background.

Know This About Net Zero

The term "net zero" remains ill-defined among the public. So what is it? Why is it necessary, and how does it fall short of solving all our climate woes?
Sand dunes and ocean at Padre Island's North Beach, Texas

The Shifting Sands of Hurricane Resilience

Sand dunes act as shock absorbers during hurricanes, both when the storms hit and while reestablishing roots (literally) in the aftermath.
A photograph of Cyanea pohaku from The indigenous trees of the Hawaiian Islands (1913)

Cyanea Pohaku: The Plant Discovered Right Before Extinction

Cyanea pohaku, the extinction of which can be traced to human interventions in the environment, was gone before we had a chance to really study it.
This artist concept depicts "multiple-transiting planet systems," which are stars with more than one planet.

To Find a New World, Watch How a Planet Dances with Its Star

Finding a tiny planet around bright stars dozens or hundreds of light-years from Earth is extremely difficult.
The continent of Antarctica, circa 2006

Inventing Antarctica

We're only just getting to know "the Ice."
This composite image contains X-ray data from Chandra (green and blue) that show heated material in the center of a shell generated by a supernova explosion. Optical data from Hubble show the glowing pink rim, which is ambient gas being shocked by the blast wave from the supernova, as well as the surrounding star field. The Type Ia supernova that resulted in the creation of this remnant would have been visible from Earth some 400 years ago.

How Stars Die

Nothing in this Universe is eternal—not even the stars.
How Mars may have looked about four billion years ago

How Mars Lost Its Magnetic Field—and Then Its Oceans

Chemical changes inside Mars's core caused it to lose its magnetic field. This, in turn, caused it to lose its oceans. But how?
Coal mining, Anthracite Region of Pa. Loaded cars being placed on cage to be raised to surface. Post card from between circa 1930 and circa 1945.

When Did Americans Start Using Fossil Fuel?

The nineteenth-century establishment of mid-Atlantic coal mines and canals gave America its first taste of abundant fossil fuel energy.