To reach Earth’s closest star system, Alpha Centauri, scientists are building a laser-powered spacecraft. To pull off interstellar travel, a spacecraft must be very light; therefore, it’s essential to ...

This fanciful yet scientifically guided tale describes a visit to the Moon, and is considered by many the first work of ...

Kepler was observing planets beyond our Solar System as part of its Observation Campaign 19, which began on August 29. For 27 days it observed thousands of stars, looking for dips in light as ...

If this were indeed the case, then Brahe might have unwillingly given the part of his data that led Kepler to his correct model of the solar system. Kepler is believed to have said that he would ...

A major focus of its mission is the study of exoplanets—planets outside our solar system. By observing transiting ... said they had no reason to believe the three-planet model of the Kepler-51 system ...

The researchers said they had no reason to believe the three-planet model of the Kepler-51 system was inaccurate, and they successfully used the model to predict the transit time of Kepler-51b in ...

Even though everything in the solar system revolves around ... which could also help astronomers model the conditions before ...