Large radial velocity surveys have been ongoing on these different instruments and have yielded a whole population of exoplanets of all kinds, from hot Jupiters to systems of Neptune-like objects to ...

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Studying young gas giant exoplanets' compositions and orbits could help us better understand how our own solar system's gas ...

Despite their overall similarities, asteroids are usually pretty distinct from one another. Vesta has a very different ...

Earth's last ice age ended around 11,700 years ago and a new study predicts the next one should be 10,000 years away. But the researchers say record rates of fossil fuel burning that are increasing ...

The permissible degree of eccentricity can be expressed by a plus and minus wall thickness tolerance. If you have any comments or questions about the glossary, please contact Dan Davis, ...

Natural cycles in Earth's rotational axis and its orbit around the sun drive climatic changes, and now researchers have ...

"Mission 7 broke new ground by showcasing the X-37B’s ability to flexibly accomplish its test and experimentation objectives across orbital regimes." Gen. Chance Saltzman, chief of space ...

They mapped changes in ice sheet volumes using data from fossilized deep-sea organisms, then compared this data to the Earth's oval-shaped orbit around the sun, a phenomenon called orbital ...

a phenomenon called orbital eccentricity. The authors found each glaciation period in the last 900,000 years followed a predictable pattern. Transitions between glacial and interglacial periods ...

The team compared the changes in orbital parameters to the glacial periods over the last 900,000 years. Eccentricity varies over 100,000-year cycles (and a second one over 400,000 years).