CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, a crane moves the Cosmic Origins Spectrograph, or COS, toward the Orbital Replacement Unit Carrier where it will be installed. The carrier will be placed in space shuttle Atlantis' payload bay for the Hubble servicing mission, STS-125, targeted to launch in mid-May. Installing the COS during the mission will effectively restore spectroscopy to Hubble’s scientific arsenal, and at the same time provide the telescope with unique capabilities. COS is designed to study the large-scale structure of the universe and how galaxies, stars and planets formed and evolved. It will help determine how elements needed for life such as carbon and iron first formed and how their abundances have increased over the lifetime of the universe. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians secure the Cosmic Origins Spectrograph, or COS, on the Orbital Replacement Unit Carrier. The carrier will be placed in space shuttle Atlantis' payload bay for the Hubble servicing mission, STS-125, targeted to launch in mid-May. Installing the COS during the mission will effectively restore spectroscopy to Hubble’s scientific arsenal, and at the same time provide the telescope with unique capabilities. COS is designed to study the large-scale structure of the universe and how galaxies, stars and planets formed and evolved. It will help determine how elements needed for life such as carbon and iron first formed and how their abundances have increased over the lifetime of the universe. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians help guide the Cosmic Origins Spectrograph, or COS, as it is lifted from a stand. The COS will be moved to and placed on the Orbital Replacement Unit Carrier that will be installed in space shuttle Atlantis' payload bay. The COS is part of the payload for the Hubble servicing mission, STS-125, targeted to launch in mid-May. Installing the COS during the mission will effectively restore spectroscopy to Hubble’s scientific arsenal, and at the same time provide the telescope with unique capabilities. COS is designed to study the large-scale structure of the universe and how galaxies, stars and planets formed and evolved. It will help determine how elements needed for life such as carbon and iron first formed and how their abundances have increased over the lifetime of the universe. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians oversee the lifting of the Cosmic Origins Spectrograph, or COS, from a stand. The COS will be moved to and placed on the Orbital Replacement Unit Carrier that will be installed in space shuttle Atlantis' payload bay. The COS is part of the payload for the Hubble servicing mission, STS-125, targeted to launch in mid-May. Installing the COS during the mission will effectively restore spectroscopy to Hubble’s scientific arsenal, and at the same time provide the telescope with unique capabilities. COS is designed to study the large-scale structure of the universe and how galaxies, stars and planets formed and evolved. It will help determine how elements needed for life such as carbon and iron first formed and how their abundances have increased over the lifetime of the universe. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians help with the lifting of the Cosmic Origins Spectrograph, or COS, from a stand. The COS will be moved to and placed on the Orbital Replacement Unit Carrier that will be installed in space shuttle Atlantis' payload bay. The COS is part of the payload for the Hubble servicing mission, STS-125, targeted to launch in mid-May. Installing the COS during the mission will effectively restore spectroscopy to Hubble’s scientific arsenal, and at the same time provide the telescope with unique capabilities. COS is designed to study the large-scale structure of the universe and how galaxies, stars and planets formed and evolved. It will help determine how elements needed for life such as carbon and iron first formed and how their abundances have increased over the lifetime of the universe. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, a crane lowers the Cosmic Origins Spectrograph, or COS, toward the Orbital Replacement Unit Carrier where it will be installed. The carrier will be placed in space shuttle Atlantis' payload bay for the Hubble servicing mission, STS-125, targeted to launch in mid-May. Installing the COS during the mission will effectively restore spectroscopy to Hubble’s scientific arsenal, and at the same time provide the telescope with unique capabilities. COS is designed to study the large-scale structure of the universe and how galaxies, stars and planets formed and evolved. It will help determine how elements needed for life such as carbon and iron first formed and how their abundances have increased over the lifetime of the universe. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, a crane places the Cosmic Origins Spectrograph, or COS, on the Orbital Replacement Unit Carrier where it will be installed. The carrier will be placed in space shuttle Atlantis' payload bay for the Hubble servicing mission, STS-125, targeted to launch in mid-May. Installing the COS during the mission will effectively restore spectroscopy to Hubble’s scientific arsenal, and at the same time provide the telescope with unique capabilities. COS is designed to study the large-scale structure of the universe and how galaxies, stars and planets formed and evolved. It will help determine how elements needed for life such as carbon and iron first formed and how their abundances have increased over the lifetime of the universe. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, the payload ground-handling mechanism, known as the PGHM, is retracted after installing the payloads in space shuttle Atlantis' payload bay, at right, for the STS-125 mission. The payload includes the Flight Support System, or FSS, carrier with the Soft Capture Mechanism; the Multi-Use Lightweight Equipment, or MULE, carrier with the Science Instrument Command and Data Handling Unit, or SIC&DH; the Orbital Replacement Unit Carrier, or ORUC, with the Cosmic Origins Spectrograph, or COS, and an IMAX 3D camera. Atlantis' crew will service NASA's Hubble Space Telescope for the fifth and final time. The flight will include five spacewalks during which astronauts will refurbish and upgrade the telescope with state-of-the-art science instruments. As a result, Hubble's capabilities will be expanded and its operational lifespan extended through at least 2014. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, the payload ground-handling mechanism, known as the PGHM, is retracted after installing the payloads in space shuttle Atlantis' payload bay for the STS-125 mission. Seen here are the service platforms of the PGHM. The payload includes the Flight Support System, or FSS, carrier with the Soft Capture Mechanism; the Multi-Use Lightweight Equipment, or MULE, carrier with the Science Instrument Command and Data Handling Unit, or SIC&DH; the Orbital Replacement Unit Carrier, or ORUC, with the Cosmic Origins Spectrograph, or COS, and an IMAX 3D camera. Atlantis' crew will service NASA's Hubble Space Telescope for the fifth and final time. The flight will include five spacewalks during which astronauts will refurbish and upgrade the telescope with state-of-the-art science instruments. As a result, Hubble's capabilities will be expanded and its operational lifespan extended through at least 2014. Photo credit: NASA/Kim Shiflett