NASA’s Artemis II mission, the first crewed mission to orbit the Moon since the Apollo program, successfully launched on April 1st. The Space Launch System (SLS) rocket and Orion spacecraft lifted off from Kennedy Space Center in Florida at 6:35 p.m. EDT, carrying a crew of four astronauts.

Historic Launch and Initial Challenges

The launch was met with cheers as the SLS rocket began its ascent. Following a successful launch, NASA leaders celebrated the milestone during a post-launch news conference. However, they also acknowledged some initial issues encountered after the crew reached Earth orbit.

Communication and System Issues

Approximately 51 minutes into the flight, a communication issue temporarily prevented mission control in Houston from hearing the crew. Additionally, astronauts will need to utilize backup waste management systems due to a malfunction with the primary toilet.

Astronauts Prepare for Lunar Flyby

The four-member crew – NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, along with Canadian Space Agency astronaut Jeremy Hansen – are now focused on acclimating to the zero-gravity environment during the first two days of the mission.

Mission Timeline and Key Events

Following launch, key steps included stretching the 63-foot solar arrays to generate power for the trip to the Moon, and an apogee raise burn to adjust the spacecraft’s orbit. These maneuvers are crucial for preparing the Orion spacecraft for deep-space operations.

Weather and Launch Preparations

Prior to launch, engineers addressed a sensor issue on the launch abort system, performing a confidence test to ensure its functionality. Weather conditions were initially favorable, with a 90% chance of favorable conditions.

Safety Protocols

NASA’s flight termination system (FTS), a critical safety feature, was also a focus of attention. Engineers resolved a communication issue with the FTS, ensuring the ability to safely abort the mission if necessary.

Crew and Public Viewing

The astronauts spent time with family before heading to Launch Complex 39B in the Astrovan, enjoying movie clips like “Top Gun” and “Point Break” along the way. Large crowds gathered at viewing locations, including the Max A. Brewer Bridge, to witness the historic event.

Rocket Performance and Sensory Experience

The SLS rocket’s launch produced an intense display of power, turning night into day. The sound reached 136 decibels a mile from the pad, rattling windows and being felt physically by observers.

Ongoing Fueling and Solar Activity

Fueling of the SLS rocket with cryogenic propellants began early on April 1st, with Artemis launch director Charlie Blackwell-Thompson giving the “go” to begin. NASA’s Solar Dynamics Observatory also captured images of a solar flare on March 29th.