At 11:05 p.m. (EDT) on March 22 the Atlas V rocket successfully lifted off from Cape Canaveral Air Force Station, Florida.
Included in the 7,500 pounds of cargo aboard the Orbital ATK Cygnus spacecraft are numerous science payloads to support experiments in biology, biotechnology, physical science and Earth science.
From NASA Press release, 03/23/2016:
Orbital ATK’s fifth cargo delivery flight under its Commercial Resupply Services contract with NASA launched at 11:05 p.m. EDT Tuesday on a United Launch Alliance Atlas V rocket from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. The Cygnus is scheduled to arrive at the orbiting laboratory Saturday, March 26.
LEARN MORE (Link to full NASA press release)
Image source: NASA TV