Space.com Watch Live Monday! SpaceX to Launch US Spy Satellite @ 7 am ET 2017-04-30T08:00:00.000000000-04:00 On Monday, May 1, SpaceX will launch the classified satellite NROL-76 for the U.S. National Reconnaissance Office and you can watch it live here. Liftoff is set for 7 a.m. EDT (1100 GMT). Rocket Sensor Glitch Scrubs SpaceX's First Spy Satellite Launch 2017-04-30T07:22:00.000000000-04:00 SpaceX has pushed back its first launch of a U.S military satellite for Monday (May 1) after a sensor issue triggered a 24-hour delay on Sunday (April 30). The Late Heavy Bombardment: A Violent Assault on Young Earth 2017-04-29T12:18:00.000000000-04:00 Debris from space bombarded Earth billions of years ago and may have delivered water to the hot, young planet. SpaceX Breaks Up US Spy Satellite Launch Monopoly | Video 2017-04-29T10:09:00.000000000-04:00 When the private spaceflight company launches the National Reconnaissance Office (NRO) satellite, designated NROL-76, a 10-year stretch where every U.S. military and national security satellite was launched by United Launch Alliance (ULA) will end. Watch SpaceX Launch a Military Spy Satellite for 1st Time Sunday 2017-04-29T07:15:00.000000000-04:00 Breaking a 10-year monopoly by United Launch Alliance (ULA), SpaceX will launch a satellite into orbit on a classified mission this morning (April 28) from Kennedy Space Center in Florida. Braille Guide Gives Users a Feel for 2017 Solar Eclipse 2017-04-29T07:07:00.000000000-04:00 A new tactile guide lets everyone learn more about the upcoming 2017 total solar eclipse — even people who won't be able see it. 'Grand Finale' at Saturn Begins: Cassini Spacecraft's 1st Ring Dive in Pictures 2017-04-29T07:00:00.000000000-04:00 On April 26, 2017, NASA's Cassini spacecraft swooped through the space between Saturn and its rings. Here are the first photos from the epic encounter. Watch Astronauts Play Ping-Pong with Water in Ultra-HD 2017-04-29T07:00:00.000000000-04:00 In the first live 4k video stream from the International Space Station on Wednesday (April 26), NASA astronauts Peggy Whitson and Jack Fischer wowed viewers by playing with water in zero-G. The First 100 Days: What Trump Has Done on Space So Far 2017-04-28T12:00:00.000000000-04:00 The Trump administration has already moved aggressively in a number of areas, such as tax policy, health care, immigration and environmental regulation. But it hasn't done a lot regarding space science and exploration. 'We Don't Planet' Episode 1: What's the Structure of the Sun? 2017-04-28T12:00:00.000000000-04:00 Learn all about the structure of the sun in the first episode of the astrophysics video-explainer series "We Don't Planet."