For the first time since the space shuttle program retired in 2011, astronauts will launch to space from Kennedy Space Center.

Teams are expected to liftoff from the pad 39A at 4:33 p.m. EST on SpaceX's Falcon 9 rocket and Crew Dragon capsule. NASA astronauts Bob Behnken and Doug Hurley will be the first humans to launch on a commercial spacecraft as they head on a 19-hour journey to the International Space Station where they will stay approximately one to four months.

President Donald Trump and Vice President Mike Pence will be at KSC for the launch, along with at least half a dozen current and former astronauts and a small press corps.

NASA is asking people to watch the launch from home due to the coronavirus pandemic. Here's how to watch the launch online and on television:

NASA webcast

NASA will begin broadcasting live views of Crew Dragon and its Falcon 9 rocket atop Pad 39A of the Kennedy Space Center in Florida at 12 p.m. EST and will have continuous coverage through Friday, May 28.

The broadcast is available on NASA's website, and on the NASA TV channel. NASA is also holding a virtual #launchAmerica event with video tours.

Here's a full list of the NASA streams available: 

NASA Live NASA App for iOS and Android YouTube  Twitter Facebook LinkedIn Roku Pluto TV Satellite Galaxy 13

SpaceX webcast

SpaceX is offering a launch webcast beginning about 4 hours before liftoff. The livestream will also be available on YouTube.

Florida Today

Full coverage kicks off at 11:30 a.m. Wednesday at and will feature in-depth coverage, photos, charts and more. Viewers can ask the space team — Emre Kelly, Antonia Jaramillo and Rachael Joy — questions and strike up a conversation. The outlet will also be hosting NASA's live webcast of the launch.

'Launch America: Mission to Space Live' National Geographic & ABC News

ABC News and the National Geographic Channel will provide two days of coverage for SpaceX's Demo-2 launch on "Launch America: Mission to Space Live," starting at 3 p.m. EST on launch day.

You'll be able to watch it live on ABC News Live, the National Geographic Channel and YouTube TV. 

Discovery Channel/Science Channel

Discovery and the Science Channel will host a three-hour multiplatform simulcast called called "Space Launch Live: America Returns to Space," beginning Wednesday at 2 p.m. EST. The program will feature Katy Perry, TV and internet personality Adam Savage, former NASA engineer and YouTube sensation Mark Rober and other surprise celebrity guests. The stream can also be watched online using Discovery Go.

Spacefest at Home with Neil DeGrasse Tyson

Even in the event that the launch is postponed, astrophysicist Neil deGrasse Tyson and the American Museum of Natural History in New York City will hold Spacefest at Home Wednesday. The celebration will begin at 11 a.m. EST and run through the launch during which Tyson, astrophysicist Jackie Faherty, and Museum Curator Michael Shara will provide commentary.

Space for Humanity webinar

The space exploration advocacy group Space for Humanity will hold a Zoom webinar on launch day starting at 3:30 p.m. EST. The event, hosted by space journalist Sarah Cruddas, will feature astronauts, celebrities, and experts. 

Follow N'dea Yancey-Bragg on Twitter: @NdeaYanceyBragg