KNOWLEDGE TO GAIN

IN AN INCREDIBLE FEAT  of remote engineering, NASA has fixed one of the most intrepid explorers in human history.  Voyager 2 , currently some  11.5 billion miles  from Earth, is back online and resuming its mission to collect scientific data on the solar system and the interstellar space beyond. On Wednesday, February 5 at 10:00 p.m. Eastern,  NASA's Voyager Twitter  account gave out the good news:  Voyager 2  is not only stable, but is back at its critical science mission. "My twin is back to taking science data, and the team at @NASAJPL is evaluating the health of the instruments after their brief shutoff," the account tweeted. Voyager 2  is sister craft to  Voyager 1 . Both have been traveling through the solar system — and now beyond it — for the last four decades. Together, they have  transformed our understanding  of our stellar neighborhood and are already revealing unprecedented information about the  interstellar space  beyond the Sun's sphere of influence. N