Live broadcasts
Webcast: What Happens When You Fall Into a Black Hole?
What happens if you fall into a black hole? According to Einstein's general theory of relativity, the fall would be…
Watch Live: Commercial Antares Rocket Launches to Space Station
UPDATE: Orbital Sciences successfully launched its Cygnus cargo spacecraft aboard its Antares rocket at 10:58 a.m. EDT Wednesday from the…
Watch LADEE Launch Live!
NASA’s heading back to the Moon, and you can see the launch – either live with your own eyes if…
Watch Live: Celebrating One Year on Mars with Curiosity
NASA and the Jet Propulsion Laboratory are hosting a live webcast on Tuesday, August 6 starting at 14:45 UTC (10:45…
Watch Live: Soyuz Fast-Track Launch to the Space Station
Three new International Space Station crew members are set to launch aboard the Soyuz TMA-09M spacecraft from the Baikonur Cosmodrome…
Watch Live: Emergency ISS Spacewalk to Fix Coolant Leak
Free live streaming by Ustream Astronauts on the International Space Station doing an unplanned "emergency" spacewalk to fix an ammonia…
Watch Live Hangout: TESS and the Search for Exoplanets
Last month, NASA announced plans to launch the Transiting Exoplanet Survey Satellite (TESS) in 2017. This is a satellite that…
Watch Live Webcast of Comet PANSTARRS
UPDATE: The webcast has been moved to March 16 at 17:00 UTC (1 pm EDT) due to bad weather in…
Cosmic Rays and Exploding Stars
Scientists have known about cosmic rays for a century. But these high-energy subatomic particles, which stream through space at nearly…
Space Station Astronauts Hangout with Earthlings (and Universe Today!)
It's not often that people on Earth get to hangout with astronauts in space, but today NASA held the first-ever…