"Twinkle, twinkle, little star" is a twisted sort of lullaby for astronomers, because the effect that enchants the casual stargazer blurs images taken by even the most powerful telescopes.
The exoplanets that scientists have identified so far are a pretty eclectic bunch — which is why astronomers were surprised when they realized that a newly spotted planet looked awfully familiar.
One of the experiments astronauts are tending to on the International Space Station could electrify space exploration.
If life on Earth is getting you down, maybe it's time to take a moment to think about the bigger picture — like the view of our planet from the International Space Station.
One new children's book takes readers on a journey to Pluto with NASA's New Horizons spacecraft.