This graphic shows how variations in the position of Earth in relation to the Sun — ranging from periapsis (the closest point in its orbit) to apoapsis (the farthest point) — cause small changes in ...

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Today, April 22nd, is the annual celebration of this one planet that we get to call home. It’s also a great opportunity to pause and think about the role that the environment — and consumers’ ...

Bioluminescence is a chemical reaction where light is produced by organisms to hunt prey, defend against predators, and find mates. Most bioluminescent organisms are found in the ocean, but some can ...

The Pan-STARRS1 survey telescope on Maui has discovered an object that is headed for Earth’s orbit. This isn’t out of the ordinary except that this object is apparently not an asteroid. In fact, it ...

Venus and Earth are similar sizes and have similar gravity -- but Venus is bone dry and more than 10 times as hot as our home planet. Recent NASA research describes a key process that removes water ...