Eccentricity of the Earth's orbit around the Sun. The fluctuation between a nearly circular and elliptical orbit drives cyclic changes in the Earth's environment, including the global carbon cycle.

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida ...

Solar radiation received at low-latitude is principally affected by variations in the cumulative effect of eccentricity ... Pliocene-Pleistocene. Earth and Planetary Science Letters 220, 3-24 ...

Such an object with less than 0.25 eccentricity (a roughly circular orbit), therefore, would have an average altitude of 2,042 km (1,269 mi). The ISS is in a low Earth orbit. Credit: NASA Despite ...