The Van Allen probe's mission was meant to last two years, but ended up going for nearly seven.
NASA’s 1,323-pound Van Allen Probe A will re-enter Earth’s atmosphere soon. Most of the spacecraft will burn up, but some components may survive, with low risk to humans.
In the study of lunar eclipses, NASA’s research into the varying shades and hues of a total lunar eclipse provides fascinating insights into the impact of this astronomical event on Earth’s atmosphere ...
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A New York Times analysis of satellite imagery and verified videos shows damage to more than a dozen American military sites ...
A newly discovered comet is rapidly brightening and could become visible from Earth — if it survives an extreme close encounter with the sun on April 4.