Technicians place the second stage of a Delta II rocket onto a transport trailer inside NASA Hangar 836 at Vandenberg Air Force Base in California in preparation to launch the Joint Polar Satellite System spacecraft in 2017. JPSS-1 is part of the next-generation environmental satellite system, a collaborative program between the National Oceanic and Atmospheric Administration (NOAA) and NASA. To learn more about JPSS-1, visit http://www.jpss.noaa.gov.

Technicians offload the second stage of a Delta II rocket from a transport trailer inside NASA Hangar 836 at Vandenberg Air Force Base in California in preparation to launch the Joint Polar Satellite System spacecraft in 2017. JPSS-1 is part of the next-generation environmental satellite system, a collaborative program between the National Oceanic and Atmospheric Administration (NOAA) and NASA. To learn more about JPSS-1, visit http://www.jpss.noaa.gov.

Packed in its shipping container, the Sentinel-6B spacecraft, a collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), arrives by truck at the entrance NASA’s Building 836 at Vandenberg Space Force Base in California on Monday, Aug. 18, 2025. The second of two spacecraft that constitutes the Sentinel-6/Jason-CS (Continuity of Service) mission, Sentinel-6B will measure sea surface height and provide crucial information to help improve coastal planning, enabling local and state governments to make informed decisions about protecting coastal infrastructure, real estate, and energy sites. Launch is targeted for no earlier than November on a SpaceX Falcon 9 from Vandenberg.

Packed in its shipping container, the Sentinel-6B spacecraft, a collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), arrives by truck at the entrance NASA’s Building 836 at Vandenberg Space Force Base in California on Monday, Aug. 18, 2025. The second of two spacecraft that constitutes the Sentinel-6/Jason-CS (Continuity of Service) mission, Sentinel-6B will measure sea surface height and provide crucial information to help improve coastal planning, enabling local and state governments to make informed decisions about protecting coastal infrastructure, real estate, and energy sites. Launch is targeted for no earlier than November on a SpaceX Falcon 9 from Vandenberg.

Packed in its shipping container, the Sentinel-6B spacecraft, a collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), arrives by truck at the entrance NASA’s Building 836 at Vandenberg Space Force Base in California on Monday, Aug. 18, 2025. The second of two spacecraft that constitutes the Sentinel-6/Jason-CS (Continuity of Service) mission, Sentinel-6B will measure sea surface height and provide crucial information to help improve coastal planning, enabling local and state governments to make informed decisions about protecting coastal infrastructure, real estate, and energy sites. Launch is targeted for no earlier than November on a SpaceX Falcon 9 from Vandenberg.

Wrapped in protective coverings, ground support equipment for the Sentinel-6B spacecraft, a collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), arrives by truck to NASA’s Building 836 at Vandenberg Space Force Base in California on Monday, Aug. 18, 2025. The second of two spacecraft that constitutes the Sentinel-6/Jason-CS (Continuity of Service) mission, Sentinel-6B will measure sea surface height and provide crucial information to help improve coastal planning, enabling local and state governments to make informed decisions about protecting coastal infrastructure, real estate, and energy sites. Launch is targeted for no earlier than November on a SpaceX Falcon 9 from Vandenberg.

Wrapped in protective coverings, ground support equipment for the Sentinel-6B spacecraft, a collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), arrives by truck to NASA’s Building 836 at Vandenberg Space Force Base in California on Monday, Aug. 18, 2025. The second of two spacecraft that constitutes the Sentinel-6/Jason-CS (Continuity of Service) mission, Sentinel-6B will measure sea surface height and provide crucial information to help improve coastal planning, enabling local and state governments to make informed decisions about protecting coastal infrastructure, real estate, and energy sites. Launch is targeted for no earlier than November on a SpaceX Falcon 9 from Vandenberg.

Packed in its shipping container, the Sentinel-6B spacecraft, a collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), arrives by truck at the entrance NASA’s Building 836 at Vandenberg Space Force Base in California on Monday, Aug. 18, 2025. The second of two spacecraft that constitutes the Sentinel-6/Jason-CS (Continuity of Service) mission, Sentinel-6B will measure sea surface height and provide crucial information to help improve coastal planning, enabling local and state governments to make informed decisions about protecting coastal infrastructure, real estate, and energy sites. Launch is targeted for no earlier than November on a SpaceX Falcon 9 from Vandenberg.

Ground support equipment for the Sentinel-6B spacecraft, a collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), is offloaded inside NASA’s Building 836 at Vandenberg Space Force Base in California on Monday, Aug. 18, 2025. The second of two spacecraft that constitutes the Sentinel-6/Jason-CS (Continuity of Service) mission, Sentinel-6B will measure sea surface height and provide crucial information to help improve coastal planning, enabling local and state governments to make informed decisions about protecting coastal infrastructure, real estate, and energy sites. Launch is targeted for no earlier than November on a SpaceX Falcon 9 from Vandenberg.

VANDENBERG AIR FORCE BASE, Calif. – The Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, is suspended midair during its transfer from its transportation trailer to a transportation hardware cradle in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – The Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, rests on a transportation hardware cradle in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California awaiting installation on the pad. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – The Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, is lowered onto a transportation hardware cradle in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – The Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, is lifted from its transportation trailer in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – A mobile crane is enlisted to lift NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, from its transportation trailer in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – Workers prepare to lift the Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, from its transportation trailer in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – Workers secure the Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, onto a transportation hardware cradle in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – Workers steady the Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, as it is lifted from its transportation trailer in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – The Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, is lowered onto a transportation hardware cradle in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – The truck transporting the Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, backs toward the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – It's mission accomplished for the transportation trailer that delivered NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, to the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – Preparations are underway to offload the Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, into the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – Half of the fairing for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, is towed from the Building 836 hangar to Space Launch Complex 2 on Vandenberg Air Force Base in California. Operations have begun to hoist the sections of the fairing into the Delta II launcher's environmental enclosure, or clean room, at the top of the pad's tower. The fairing will protect OCO-2 during launch aboard a United Launch Alliance Delta II rocket from Space Launch Complex 2 in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin

VANDENBERG AIR FORCE BASE, Calif. – The Delta first-stage booster for NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, is suspended above its transportation trailer in the Building 836 hangar at Space Launch Complex 2 on Vandenberg Air Force Base in California. OCO-2 is scheduled to launch aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Randy Beaudoin