We’re joining forces with our colleagues at Spaceflight Now to provide live coverage of the New Horizons spacecraft’s flyby of 2014 MU69 — also known as Ultima Thule — in the Kuiper Belt a billion miles beyond Pluto. Text updates will appear automatically below. Follow us on Twitter.
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Primordial asteroid impacts a possible solution to “faint young Sun paradox”
In the first billion years of Earth’s history, the planet was bombarded by primordial asteroids, while a faint Sun provided much less heat. A Southwest Research Institute-led team posits that this tumultuous beginning may have ultimately fostered life on Earth, particularly in terms of sustaining liquid water.
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NASA’s new planet-hunting satellite begins climb into science orbit
Looping back near Earth for the first time since its launch one week ago, NASA’s Transiting Exoplanet Survey Satellite fired its thrusters early Wednesday to begin boosting its orbit toward the moon for a May 17 gravity assist maneuver that will help catapult the probe into its unique science orbit.