Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t ...

Fleets of satellites interfere with snapshots taken by Earth-bound observatories. But a new study suggests these orbiters ...

Scientists say modern life overloads our Stone Age stress systems, driving chronic illness and calling for nature-rich ...

Around 56 million years ago, Earth suddenly got much hotter. Over about 5,000 years, the amount of carbon in the atmosphere ...

University of Alberta geochemists have discovered a missing piece to one of the great mysteries of science—the origin of life ...

This year marks the 55th anniversary of Earth Day celebrating nature and this beautiful planet we live on. The first Earth Day was celebrated in 1970, when 20 million people attended inaugural events ...

For millennia, humans evolved beneath open skies, surrounded by forests, rivers and the rhythms of the natural world. This ...