Earth’s rotation is slowing as melting ice moves across the planet. New research says it’s driven by climate change and is ...

If you were to imagine all of Earth's history as just one day, as in Carl Sagan's cosmic calendar, humans wouldn't arrive until the last few seconds before midnight. A few hundred thousand years of ...

Earth is often imagined as a stable world, ancient, solid, and mostly unchanging beneath the surface. In reality, the planet ...

Earth’s orbit around the Sun is not circular, but an ellipse that is slightly elongated with an eccentricity of 0.017. (An eccentricity of 0 is a circle, while the dwarf planet Pluto has a relatively ...

NASA-supported scientists have provided new information about how the early Earth may have acquired some elements necessary ...

In September 1933, American meteorologist Joseph Kincer asked a simple question: is the climate changing? So began the effort to understand the scope of humanity’s interference with the climate. By ...

SETI research often involves hunting for technosignatures—evidence of technology from distant civilizations. But how detectable is Earth to others with technology similar to our own? In a recent SETI ...

Nearly 5 billion years ago, a dense cloud of gas and dust occupied this corner of the Milky Way. The planets we know today, including Earth, were nowhere to be found. Scientists think that a nearby ...