Earth

Salmon excavate streambed holes in which to lay eggs, setting off a chain of events that has surprisingly large geographical effects.

Earth’s magnetic field protects life and satellites from the sun’s harmful radiation, but this effect is far from constant

The supernatural ain't got nothing on our own Planet Earth

Halloween comes early to Rosetta Stones. Let's see what kind of goodies are in the bag!

The massive slabs of Earth’s crust might have started their journey more than 3.5 billion years ago

A new study hints that the most energetic particles ever seen come from far beyond the Milky Way.

As carbon dioxide levels rise, plants are sipping water more efficiently—which could come in handy in a drier future. Christopher Intagliata reports.

Geological processes send more meltwater from glaciers and ice sheets to Earth's mid-latitudes

When cattle graze the desert's natural landscape, birds face changes in food availability—and some species are unable to adapt. Jason Goldman reports.

Warmer water boosts fishes' demand for oxygen—and their bodies may shrink in response. Christopher Intagliata reports.

In 1998 an orange juice maker dumped 12,000 tons of orange peels on degraded pastureland in Costa Rica—transforming it into vine-rich jungle. Christopher Intagliata reports.

Astronomers Without Borders wants to share your used eclipse glasses with kids in other parts of the world for the 2019 total solar eclipse.