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A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow the search for potentially habitable planets beyond Earth.

More than just a walk, the American Cancer Society Relay For Life brings together passionate supporters who embody the American Cancer Society vision to end cancer as we know it, for everyone. This ...

The conflict in Iran and the recent shuttering of Spirit Airlines may increase flight costs this year. Airfare can be one of the most expensive parts of traveling. Apps make it easy to track trends in ...

Getting four knocks in one day is memorable for even the best hitters. But getting a hit of each kind -- a single, double, triple and homer -- in the same game? That's something special. How special?

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The National Postal Museum's website offers a variety of online activities for kids of all ages, including how to make your own time capsule!