A NASA Spacecraft Reaches An Exciting First

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After a pit stop at the asteroid Vesta, the NASA spacecraft Dawn ended its seven-and-a-half year, 3.1 billion mile journey to the dwarf planet Ceres.

Ceres is the largest object in the stretch between Mars and Jupiter, and scientists say objects like it have a lot to tell us about how our solar system came together--and maybe even how Earth got covered in water.


Kelly Beatty, a senior editor for Sky and Telescope. He tweets @NightSkyGuy.


Sky and Telescope: Dawn Orbiter Reaches Dwarf-Planet Ceres

  • "If the best things in life are worth waiting for, then it's been totally worth it for the team of scientists and engineers involved in NASA's Dawn mission."

The Dawn Mission

  • NASA's official mission page.

This segment aired on March 6, 2015.


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