Mike McAleenan, launch weather officer, U.S. Air Force 45th Space Wing, gives a weather update to members of the news media during a prelaunch news conference on Dec. 3, 2019, for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station, at the agency’s Kennedy Space Center in Florida. NASA and industry leaders speak to members of the news media during the news conference. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

Dustin Cammack, NASA Communications, moderates a prelaunch news conference on Dec. 3, 2019, for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station, at the agency’s Kennedy Space Center in Florida. NASA and industry leaders speak to members of the news media during the news conference. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Shoichiro Mihara, mission manager for the Hyperspectral Imager Suite (HISUI) developed by the Japanese government, discusses the next-generation, hyperspectral Earth imaging system. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Paul Ferkul, an investigator for the Confined Combustion experiment, discuss the investigation which studies how fire spreads and behaves in confined spaces. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Se-Jin Lee, professor at the Jackson Laboratory and University of Connecticut School of Medicine, and principal investigator of Rodent Research-19 presents his research to members of the media. He discussed the research on molecular signaling pathways that influence muscle degradation to prevent skeletal muscle and bone loss during spaceflight, and enhance recovery following return to Earth. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Se-Jin Lee (at right) professor at the Jackson Laboratory and University of Connecticut School of Medicine, and principal investigator of Rodent Research-19, and Emily Germain-Lee, professor at the University of Connecticut School of Medicine and chief of endocrinology and diabetes, Connecticut Children’s Medical Center, present their research to members of the media. They discussed the research on molecular signaling pathways that influence muscle degradation to prevent skeletal muscle and bone loss during spaceflight, and enhance recovery following return to Earth. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Ya-Ting Liao, an investigator for the Confined Combustion experiment, discusses the investigation which studies how fire spreads and behaves in confined spaces. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Akira Iwasaki, professor at the University of Tokyo and principal investigator for the Hyperspectral Imager Suite (HISUI) developed by the Japanese government, discusses the next-generation, hyperspectral Earth imaging system. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Andres Martinez, principal investigator for AzTechSat-1, the first Mexican-developed nanosatellite to be launched from the space station, discusses how the investigation will demonstrate communication between a CubeSat and the GlobalStar Constellation satellite network in low-Earth orbit. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Rosa Reyna gonzales, student researcher for AzTechSat-1, the first Mexican-developed nanosatellite to be launched from the space station, discusses her role in the experiment and how the investigation will demonstrate communication between a CubeSat and the GlobalStar Constellation satellite network in low-Earth orbit. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Michael Roberts, interim chief scientist for the International Space Station U.S. National Laboratory, discusses the lab’s work in advancing science in space, and in developing partnerships that drive industrialization through microgravity research. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

Dustin Cammack, NASA Communications, far left, moderates a prelaunch news conference on Dec. 3, 2019, for SpaceX's 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station, at the agency’s Kennedy Space Center in Florida. Speaking to members of the news media are, from left, Bryan Dansbury, assistant program scientist, International Space Station Program Science Office at NASA; Jessica Jensen, director, Dragon Mission Management at SpaceX; and Mike McAleenan, launch weather officer, U.S. Air Force 45th Space Wing. The SpaceX Flacon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

Bryan Dansberry, assistant program scientist, International Space Station Program Science Office at NASA speaks to members of the news media during a prelaunch news conference on Dec. 3, 2019, for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station, at the agency’s Kennedy Space Center in Florida. NASA and industry leaders speak to members of the news media during the news conference. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. Emily Germain-Lee, professor at the University of Connecticut School of Medicine and chief of endocrinology and diabetes, Connecticut Children’s Medical Center, discussed her on molecular signaling pathways that influence muscle degradation to prevent skeletal muscle and bone loss during spaceflight, and enhance recovery following return to Earth. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

Members of the news and social media listen to a What's On Board Briefing on Dec. 3, 2019, for SpaceX's 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station at the agency's Kennedy Space Center in Florida. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

A What's on Board Briefing for SpaceX's 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station took place on Dec. 3, 2019, at the agency's Kennedy Space Center in Florida. Bryan Dansberry, assistant program scientist for NASA's International Space Station Program Science Office shares an overview of the research being conducted aboard the space station and how it benefits exploration and humanity. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

Jessica Jensen, director, Dragon Mission Management at SpaceX, speaks to members of the news media during a prelaunch news conference on Dec. 3, 2019, for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station, at the agency’s Kennedy Space Center in Florida. NASA and industry leaders speak to members of the news media during the news conference. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

Greg Harland, NASA Communications, moderates a What’s On Board Briefing for SpaceX’s 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station on Dec. 3, 2019, at the agency’s Kennedy Space Center in Florida. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

Dustin Cammack, NASA Communications, far left, moderates a prelaunch news conference on Dec. 3, 2019, for SpaceX's 19th Commercial Resupply Services (CRS-19) mission for NASA to the International Space Station, at the agency’s Kennedy Space Center in Florida. From left, are Bryan Dansberry, assistant program scientist, International Space Station Program Science Office at NASA; Jessica Jensen, director, Dragon Mission Management at SpaceX; and Mike McAleenan, launch weather officer, U.S. Air Force 45th Space Wing. The SpaceX Flacon 9 rocket and Dragon cargo module are scheduled to launch on Dec. 4, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.