Technicians working inside the Astrotech Space Operations facility near NASA's Kennedy Space Center look over the Kepler spacecraft soon after it arrived in Florida in preparation for launch. [Read ...
On Earth, plants are green thanks to our Sun’s light—but Kepler-186f orbits a cooler, redder star. Here’s why alien vegetation might evolve with deep red hues instead of green. Senate Democrats, ...
The first Earth-size planet orbiting a star in the “habitable zone” — the range of distance from a star where liquid water might pool on the surface of an orbiting planet.
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