Robert Lightfoot, NASA’s Acting Administrator, to Retire as Trump’s Nominee Is Stalled Mr. Lightfoot has filled in since the end of the Obama administration, and the agency has never gone this long without a leader confirmed by the Senate. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Antarctica Is Melting More Than Twice as Fast as in 2012Raccoon Scales 25-Story Tower in St. Paul and Becomes a SensationRussia is working on a LASER CANNON to OBLITERATE space debrisVolcano eruption EXTINCTION: Ancient eruptions wiped out life on Earth - SHOCK CLAIMTrilobites: Listen to the Sounds of Narwhals That Have Been Elusive to ScienceBlack holes DO NOT exist - they are WORM HOLES claims shock study