SpaceX aims for night crew launch, Musk sidelined by virus A Falcon 9 SpaceX rocket with the Crew Dragon capsule is seen during a time exposure as it lifts off from pad 39A at the Kennedy Space Center in Cape Canaveral, Fla., Sunday, Nov. 15, 2020. Four astronauts are beginning a mission to the International Space Station. (AP Photo/John Raoux)
NASA Administrator Jim Bridenstine, Gwynne Shotwell, president and chief operating officer of SpaceX, and NASA Deputy Administrator Jim Morhard wave as NASA astronauts Mike Hopkins, Victor Glover, Shannon Walker, and Japan Aerospace Exploration Agency (JAXA) astronaut Soichi Noguchi, wearing SpaceX spacesuits, wave as they prepare to depart the Neil A. Armstrong Operations and Checkout Building for Launch Complex 39A to board the SpaceX Crew Dragon spacecraft for the Crew-1 mission launch, Sunday, Nov. 15, 2020, at NASA's Kennedy Space Center in Florida. (Joel Kowsky/NASA via AP)
The countdown clock is stopped at a three-hour built in hold as a SpaceX Falcon 9 rocket, with the company's Crew Dragon capsule attached, sits on the launch pad at Launch Complex 39A Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. Four astronauts will fly on the SpaceX Crew-1 mission to the International Space Station scheduled for launch on later today. (AP Photo/Chris O'Meara)
The countdown clock is stopped at a three-hour built in hold as a SpaceX Falcon 9 rocket, with the company's Crew Dragon capsule attached, sits on the launch pad at Launch Complex 39A Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. Four astronauts will fly on the SpaceX Crew-1 mission to the International Space Station scheduled for launch on later today. (AP Photo/Chris O'Meara)
A SpaceX Falcon 9 rocket with the company's Crew Dragon spacecraft onboard is seen on the launch pad at Launch Complex 39A as preparations continue for the Crew-1 mission, Sunday, Nov. 15, 2020, at NASA's Kennedy Space Center in Cape Canaveral, Florida. (Joel Kowsky/NASA via AP)
Japan Aerospace Exploration Agency astronaut Soichi Noguchi reacts as he leaves the Operations and Checkout Building with fellow crew members for a trip to Launch Pad 39-A and planned liftoff on a SpaceX Falcon 9 rocket with the Crew Dragon capsule on a six-month mission to the International Space Station Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. (AP Photo/John Raoux)
Japan Aerospace Exploration Agency astronaut Soichi Noguchi waves to family members as he leaves the Operations and Checkout Building with fellow crew members for a trip to Launch Pad 39-A and planned liftoff on a SpaceX Falcon 9 rocket with the Crew Dragon capsule on a six-month mission to the International Space Station Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. (AP Photo/John Raoux)
Members of Japan Aerospace Exploration Agency astronaut Soichi Noguchi pose for a photo as the astronauts leave the Operations and Checkout Building for a trip to Launch Pad 39-A and planned liftoff on a SpaceX Falcon 9 rocket with the Crew Dragon capsule on a six-month mission to the International Space Station Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. (AP Photo/John Raoux)
A SpaceX Falcon9 rocket, with the Crew Dragon capsule attached, lift's off from Kennedy Space Center's Launch Complex 39-A Sunday Nov. 15, 2020, in Cape Canaveral, Fla. Four astronauts are beginning a mission to the international Space Station. (AP Photo/Chris O'Meara)
NASA astronauts, from left, Shannon Walker, Victor Glover, and Michael Hopkins and Japan Aerospace Exploration Agency astronaut Soichi Noguchi leave the Operations and Checkout Building on their way to launch pad 39A for the SpaceX Crew-1 mission to the International Space Station at the Kennedy Space Center in Cape Canaveral, Fla., Sunday, Nov. 15, 2020. (Photo/John Raoux)
A SpaceX Falcon9 rocket, with the Crew Dragon capsule attached, lift's off from Kennedy Space Center's Launch Complex 39-A Sunday Nov. 15, 2020, in Cape Canaveral, Fla. Four astronauts are beginning a mission to the international Space Station. (AP Photo/John Raoux)
Japan Aerospace Exploration Agency astronaut Soichi Noguchi waves to family members as he leaves the Operations and Checkout Building with fellow crew members for a trip to Launch Pad 39-A and planned liftoff on a SpaceX Falcon 9 rocket with the Crew Dragon capsule on a six-month mission to the International Space Station Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. (AP Photo/John Raoux)
Astronauts, from left, Victor Glover, Michael Hopkins, Shannon Walker, and Japan Aerospace Exploration Agency astronaut Soichi Noguchi wave to family members as they leave the Operations and Checkout Building for a trip to Launch Pad 39-A and planned liftoff on a SpaceX Falcon 9 rocket with the Crew Dragon capsule on a six-month mission to the International Space Station Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. (AP Photo/John Raoux)
NASA astronaut Victor Glover reacts to family members as leaves the Operations and Checkout Building with fellow crew members for a trip to Launch Pad 39-A and planned liftoff on a SpaceX Falcon 9 rocket with the Crew Dragon capsule on a six-month mission to the International Space Station Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. (AP Photo/John Raoux)
NASA astronaut Michael Hopkins reacts to friends as he leaves the Operations and Checkout Building with fellow crew members for a trip to Launch Pad 39-A and planned liftoff on a SpaceX Falcon 9 rocket with the Crew Dragon capsule on a six-month mission to the International Space Station Sunday, Nov. 15, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. (AP Photo/John Raoux)
NASA astronaut Shannon Walker leaves the Operations and Checkout Building on her way to launch pad 39A for the SpaceX Crew-1 mission to the International Space Station at the Kennedy Space Center in Cape Canaveral, Fla., Sunday, Nov. 15, 2020. (Photo/John Raoux)
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A Falcon 9 SpaceX rocket with the Crew Dragon capsule is seen during a time exposure as it lifts off from pad 39A at the Kennedy Space Center in Cape Canaveral, Fla., Sunday, Nov. 15, 2020. Four astronauts are beginning a mission to the International Space Station. (AP Photo/John Raoux)