A new look at TRAPPIST-1e, an Earth-sized, habitable-zone exoplanet

Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention of scientists. This planet orbits the star within the "Goldilocks zone"—a ...

Complex life developed nearly 1 billion years earlier than previously thought, study reveals

Complex life began to develop earlier, and over a longer span of time, than previously believed, a new study has revealed.
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An extra solar system planet once orbited next to Earth — and it may be the reason we have a moon

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...