Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

Hunted nearly to extinction during 20th century whaling, the Antarctic blue whale, the world's largest animal, went from a population size of roughly 200,000 to little more than 300. The most recent ...

An international team led by researchers in Japan and Europe has discovered a new multi-planet system around a sun-like star, ...

For spinning spheres, centrifugal force is maximized at the equator, where the rotational speed is highest. The amount of the ...

A small asteroid burned up in Earth's atmosphere off the coast of California just hours after being discovered and before ...

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With eight billion people, we use a lot of the Earth's resources in ways that are likely unsustainable. Klaus Hubacek, ...

"Although the apple-size species, named Bathydevius caudactylus ... which is the largest habitat on Earth and accounts for 70 ...

The Roman Coronagraph Instrument, designed to block starlight, will help scientists detect faint light from exoplanets.

A team combined compositional data of primitive bodies like Kuiper Belt objects, asteroids and comets with new solar data sets to develop a revised solar composition that potentially reconciles ...

Astronomers have been curious about the makeup of Ceres, the largest object in the asteroid belt, ever since its discovery by ...