Researchers noted the spacecraft, launched 35 years ago, was hit with more cosmic rays on August 25, 2012, suggesting a change in environment. NBC’s Brian Williams reports.March 20, 2013
UP NEXT
Republicans shouting during SOTU took Biden's 'bait': Full Panel
10:24
Biden brings ‘the receipts’ on GOP Social Security plans to Wisconsin and Florida after SOTU
05:13
Chuck Todd: Biden’s Wisconsin trip is ‘fitting first stop’ after ‘soft-launching’ 2024 bid
03:30
President Erdogan visits Turkish earthquake victims
01:20
Trump White House requested 'derogatory' Chrissy Teigen tweet be evaluated
01:50
Bomb threat cleared in courthouse for Murdaugh trial