Explore how Earth would appear without life. Studies from Universe Today and Cornell University reveal atmospheric signals, surface conditions, and implications for exoplanet observations.

Computer simulations suggest NASA’s Habitable Worlds Observatory could detect Earth-like exomoons around gas giant exoplanets through reflected starlight and lunar eclipses.

An earthquake typically sets off ruptures that ripple out from its underground origins. But on rare occasions, seismologists ...

Researchers used a pair of powerful supercomputers to simulate the potential trajectories of 1 million satellites in a ...

Science is a subject built on doing. Students learn chemistry through titrations, biology through dissections, physics through motion experiments, and earth science through field observations. That ...

Astronomers have searched the skies for signs of extraterrestrial technology for decades. These searchers since 1960 have ...

A conspiracy theory that spread on social media claims that gravity will disappear for seven seconds this August, and that NASA is aware that this will happen. A physics professor explains why this is ...

A new simulation shows large amounts of hydrogen in our planet’s core. And, what scientists found in 290-million-year-old vomit.

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has ...

Researchers estimate that about one billion years from now, the Sun’s brightness will be high enough to trigger a runaway greenhouse effect. That would cause the oceans to begin evaporating, water ...

Earth’s green center has been drifting steadily for decades, reflecting a change in where vegetation grows most intensely.

On a frigid orbit beyond Neptune, some of the solar system’s smallest worlds project a strange silhouette. Two rounded lobes, ...