Asteroid

Rare double asteroid scoots by Earth

Findings from three major world observatories confirm that a very rare binary asteroid came within a cosmic whisker of Earth on June 21, 2017 The near-Earth asteroid (actually two asteroids) passed within 3.7 million of our planet for the first time in 170 years before heading out into deep space.

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Dawn gets up close with Ceres

As NASA's Dawn deep space mission to Ceres draws to its conclusion, the spacecraft is maneuvering into its closest orbit yet to the dwarf planet by executing a series of extended correction burns that will send it on a spiraling trajectory to bring it to within 30 miles of the surface.

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