{
    "count": 31,
    "next": null,
    "previous": null,
    "results": [
        {
            "id": 10564,
            "url": "https://svs.gsfc.nasa.gov/10564/",
            "result_type": "Produced Video",
            "release_date": "2010-02-03T00:00:00-05:00",
            "title": "Hubble IMAX: Educator Resources",
            "description": "Table of Contents+ Build a Robotic Arm+ Communication Station+ Images from Hubble Simulation  Build a Robotic Arm || See a robotic arm at work in the \"Servicing Mission 4 Essentials\" site at http://www.nasa.gov/mission_pages/hubble/servicing/SM4/main/SM4_Essentials.html. || build_a_mission_tool_272861main_ess_2astronauts_arm_600x400.jpg (600x400) [240.0 KB] || build_a_mission_tool_272861main_ess_2astronauts_arm_600x400_web.png (320x213) [344.6 KB] || ",
            "hits": 37
        },
        {
            "id": 10229,
            "url": "https://svs.gsfc.nasa.gov/10229/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "HST SM4 ACS Repair EVA",
            "description": "Advanced Camera for Surveys (ACS) produced many of the most popular and dramatic images from the Hubble Space Telescope over the last few years, but in January 2007 the instrument had a serious power failure which caused the three observing channels, the Wide Field Channel, The Solar Blind Channel and the High Resolution channel, to cease operation. The Solar Blind Channel was returned to service in February 2007. This animation shows how the Servicing Mission 4 astronauts will attempt to repair the Advanced Camera for Surveys by replacing the CCD electronics box in the Wide Field Channel and power this box with a replacement low voltage power supply. If this repair is successful, ACS will again provide the most sensitive images available at visible and near-infrared wavelengths. || ",
            "hits": 40
        },
        {
            "id": 10230,
            "url": "https://svs.gsfc.nasa.gov/10230/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "HST SM4 STIS Repair EVA",
            "description": "Space Telescope Imaging Spectrograph (STIS), the most versatile spectrograph ever to fly on Hubble, ceased operations in August 2004 due to failure of its power supply. In order to restore STIS to operational status, astronauts may attempt an on-orbit replacement of one electronics board inside one of its main electronics boxes. The Cosmic Origins Spectrograph (COS) that will be added during Servicing Mission 4, and STIS are highly complementary and would work effectively together to provide a full set of spectroscopic tools for astrophysical research. The STIS instrument's accomplishments include determining the atmospheric composition of an exoplanet as well as spectra and images at ultraviolet and visible wavelengths of the Universe from our solar system out to cosmological distances. || ",
            "hits": 21
        },
        {
            "id": 10231,
            "url": "https://svs.gsfc.nasa.gov/10231/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "HST SM4 Battery Module Replacement EVA",
            "description": "Battery Modules.  The six batteries currently on board the observatory are all original equipment. After more than 17 years of continuous operation the batteries are degrading. In the current condition, the Hubble electrical power system requires careful management of system state of charge to assure adequate power margins for all operational scenarios. This will become more difficult, and will start to constrain operations. The replacement of the two Hubble battery modules (each containing three batteries) will rejuvenate the electrical power system. This, combined with the power system enhancements made in Servicing Mission 3B, will result in ample power margins for the remainder of Hubble's lifetime. || ",
            "hits": 10
        },
        {
            "id": 10232,
            "url": "https://svs.gsfc.nasa.gov/10232/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "HST SM4 COS Installation EVA",
            "description": "Cosmic Origins Spectrograph (COS) will be the most sensitive ultraviolet spectrograph ever flown on Hubble. COS will probe the \"cosmic web\" - the large-scale structure of the universe whose form is determined by the gravity of dark matter and is traced by galaxies and intergalactic gas. COS will explore how the \"cosmic web\" evolved from ancient times. COS will also sample the chemical content and physical state of gas in distant galaxy halos, providing important insight into the building process of early galaxies and the production of elements heavier than hydrogen and helium over cosmic time. Required to accomplish these goals is the extraordinary sensitivity of COS's far-ultraviolet channel—a factor more than 30 times greater than that of previous spectroscopic instruments for the detection of extremely low light levels. A two-fold enhancement will be offered by COS's near-ultraviolet channel. To install the COS instrument into the Hubble Space Telescope, he Servicing Mission 4 astronauts will remove the Corrective Optics Space Telescope Axial Replacement (COSTAR) instrument (installed during Servicing Mission 1 in 1993, to correct for Hubble's spherical aberration) and then install COS in its place. || ",
            "hits": 34
        },
        {
            "id": 10233,
            "url": "https://svs.gsfc.nasa.gov/10233/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "HST SM4 WFC3 Installation EVA",
            "description": "Wide Field Camera 3 (WFC3) will have a broad range of inquiry, from early and distant galaxies beyond Hubble's current reach, to more nearby galaxies with \"stories to tell\" about their star formation histories, to the planets in our solar system. Along the way, \"dark energy\" will be seriously probed by WFC3. The instrument's key feature is its ability to span the electromagnetic spectrum from the near ultraviolet through the optical (to which our eyes are sensitive), and into the near infrared. WFC3 is the only Hubble instrument with this \"panchromatic\" capability. WFC3's strengths complement those of the Advanced Camera for Surveys (ACS) should it be repaired. Working together these two instruments could create the greatest era in the spectacular history of Hubble imaging. The Servicing Mission 4 astronauts will remove the Wide Field Planetary Camera 2 (WFPC2) installed during Servicing Mission 1 in 1993 and install the WFC3 in its place. || ",
            "hits": 14
        },
        {
            "id": 10234,
            "url": "https://svs.gsfc.nasa.gov/10234/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "HST SM4 RSU / Gyroscope Replacement EVA",
            "description": "Hubble was designed to use three of six onboard gyroscopes to meet its very precise pointing requirements, with the other three held as spares. Gyros have limited lifetimes, and three of the six (all installed in late-1999) are currently working. Following a thorough analysis and testing by engineers, it was determined that Hubble could operate productively on two gyros. After the implementation of three new control modes in Hubble's main computer, and major changes to Hubble's planning and scheduling system at the Space Telescope Science Institute, two-gyro operations began in 2005. By operating on two gyros, with the other gyro turned off (until needed), it is expected that Hubble can continue science operations through the end of 2008. With SM4 scheduled for mid-2008, a fresh set of six new gyros is needed to make the most of Hubble's new science instruments and lifetime peak performance through 2013. Each Rate Sensing Unit (RSU) contains two gyroscopes. Astronauts will replace all three RSUs giving Hubble a full compliment of six new gyroscopes. || ",
            "hits": 23
        },
        {
            "id": 10235,
            "url": "https://svs.gsfc.nasa.gov/10235/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "HST SM4 Hubble Deploy",
            "description": "Animation showing the release of the Hubble Space telescope after the completion of Servicing Mission 4. || ",
            "hits": 43
        },
        {
            "id": 10327,
            "url": "https://svs.gsfc.nasa.gov/10327/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "Astronaut Touches Hubble Animation",
            "description": "Animation of astronaut's gloved hand touches the side of the Hubble Space Telescope. Reflected in the telescope's aft shroud are the two EVA astronaut's images. || ",
            "hits": 21
        },
        {
            "id": 10328,
            "url": "https://svs.gsfc.nasa.gov/10328/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "Fine Guidance Sensor Installation EVA Animation",
            "description": "Hubble uses three Fine Guidance Sensors for steady pointing and measurement. Astronauts will exchange one of these optical sensors with a refurbished unit that has enhanced, on-orbit alignment capability during Hubble Space Telescope Servicing Mission 4. || ",
            "hits": 17
        },
        {
            "id": 10329,
            "url": "https://svs.gsfc.nasa.gov/10329/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "HST SM4 Rendezvous and Capture Sequence",
            "description": "Animation sequence of the Hubble Space Telescope and space shuttle Atlantis rendezvous and capture sequence for Servicing Mission 4. || ",
            "hits": 30
        },
        {
            "id": 10330,
            "url": "https://svs.gsfc.nasa.gov/10330/",
            "result_type": "Produced Video",
            "release_date": "2008-08-22T00:00:00-04:00",
            "title": "New Outer Blanket Layer (NOBL) Installation EVA Animation",
            "description": "A NOBL consists of stainless steel panels covered with a protective Multi-Layer Insulation (MLI) thermal coating. These panels fit over existing, degraded insulation on Hubble's exterior surface, to control Hubble's internal temperature. The NOBL will be permanently mounted. || ",
            "hits": 30
        },
        {
            "id": 10271,
            "url": "https://svs.gsfc.nasa.gov/10271/",
            "result_type": "Produced Video",
            "release_date": "2008-08-19T00:00:00-04:00",
            "title": "HST SM4 - Change Out Animation",
            "description": "Animation shows the change out of instruments and hardware planned during the Hubble Servicing Mission 4. The instrument change out order in the animation order is as follows: 1. Battery replacement  2. Wide Field Planetary Camera replaced with new Wide Field Camera 3 (WFC3) 3. Rate Sensor Units replaced (contain 2 gyros each) 4. COSTAR instrument replaced with new Cosmic Origins Spectrograph (COS)  5. Advanced Camera for Surveys (ACS) repair (circuit boards replaced and new power box added)  6. Space Telescope Imaging Spectrograph repair (cover removed, circuit board replaced, new main electronics box cover added)  7. Fine Guidance Sensor replaced 8. Soft Capture Mechanism added || ",
            "hits": 22
        },
        {
            "id": 10214,
            "url": "https://svs.gsfc.nasa.gov/10214/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "Slow Look at HST 2",
            "description": "A close-up look at HST on orbit || ",
            "hits": 36
        },
        {
            "id": 10215,
            "url": "https://svs.gsfc.nasa.gov/10215/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST Video Wipe",
            "description": "HST as a video transition wipe || HST moves from left to right.  (Frame sequence includes alpha channel) || HSTvideoWipe_0001100012_print.jpg (1024x576) [53.9 KB] || HSTvideoWipe_00011_web.png (320x180) [233.0 KB] || HSTvideoWipe_00011_thm.png (80x40) [15.1 KB] || HSTvideoWipe.webmhd.webm (960x540) [135.9 KB] || HSTvideoWipe.mov (1280x720) [352.8 KB] || 1280x720_16x9_30p (1280x720) [4.0 KB] || ",
            "hits": 28
        },
        {
            "id": 10216,
            "url": "https://svs.gsfc.nasa.gov/10216/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST Fly-By",
            "description": "An animation of the Hubble Space Telescope in orbit as it passes by the camera and slowly fades into the distance. || ",
            "hits": 48
        },
        {
            "id": 10217,
            "url": "https://svs.gsfc.nasa.gov/10217/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST Zoom-Way-Out",
            "description": "An animation of the Hubble Space Telescope in orbit where the camera zooms out to show how tiny Hubble is in relation to Earth and then how small Earth is in relation to space. Companion animation is Cosmic Origins Spectrograph: Large Scale Structure of the Universe. || ",
            "hits": 44
        },
        {
            "id": 10220,
            "url": "https://svs.gsfc.nasa.gov/10220/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "Wide Field Camera 3: Seeing in Different Wavelengths (no labels)",
            "description": "The Wide Field Camera 3 (WFC3) allows Hubble to peer ever further into the mysteries of the cosmos — in several wavelengths. This animation shows the wide variety of features and objects WFC3 can observe at different wavelengths. || ",
            "hits": 21
        },
        {
            "id": 10221,
            "url": "https://svs.gsfc.nasa.gov/10221/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "Wide Field Camera 3: Seeing in Different Wavelengths (with labels)",
            "description": "The Wide Field Camera 3 (WFC3) allows Hubble to peer ever further into the mysteries of the cosmos — in several wavelengths. This animation shows the wide variety of features and objects WFC3 can observe at different wavelengths. || ",
            "hits": 13
        },
        {
            "id": 10222,
            "url": "https://svs.gsfc.nasa.gov/10222/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "Wide Field Camera 3: Redshift",
            "description": "The Wide Field Camera 3 (WFC3) gives Hubble greater sensitivity in Infrared wavelengths, thus enabling it to see objects more distant than instruments currently on board. || ",
            "hits": 17
        },
        {
            "id": 10223,
            "url": "https://svs.gsfc.nasa.gov/10223/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "Cosmic Origins Spectrograph: Large Scale Structure of the Universe",
            "description": "The Cosmic Origins Spectrograph (COS) instrument will be placed in the Hubble Space Telescope during Service Mission 4. It's primary science objectives are the study of the origins of large scale structure in the Universe, the formation and evolution of galaxies, the origin of stellar and planetary systems, and the cold interstellar medium. This animation zooms out from our Milky Way galaxy to show the cosmic web, or large scale structure of the Universe. || ",
            "hits": 68
        },
        {
            "id": 10224,
            "url": "https://svs.gsfc.nasa.gov/10224/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST Advance Camera For Surveys Repair Scenario",
            "description": "Hubble's Advanced Camera for Surveys (ACS) was responsible for many of Hubble's most impressive images of deep space. In January 2007, ACS experienced an electrical short that put two of its three cameras out of commission. ACS contains a trio of cameras: the wide field camera, the high-resolution camera, and the solar blind camera. Each performed a specific function.This animation depicts the procedure planned to repair ACS. Astronauts will remove 4 circuit boards from inside the instrument, install a redesigned pack containing new circuit boards and then re-route the power going to the instrument. || ",
            "hits": 12
        },
        {
            "id": 10225,
            "url": "https://svs.gsfc.nasa.gov/10225/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST Advance Camera For Surveys Power Flow",
            "description": "Hubble's Advanced Camera for Surveys (ACS) was responsible for many of Hubble's most impressive images of deep space. In January 2007, ACS experienced an electrical short that put two of its three cameras out of commission. ACS contains a trio of cameras: the wide field camera, the high-resolution camera, and the solar blind camera. Each performed a specific function.This animation depicts the power flow before and after the SM4 crew services the instrument on orbit. || ",
            "hits": 9
        },
        {
            "id": 10226,
            "url": "https://svs.gsfc.nasa.gov/10226/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST SM4 Orbital Replacement Unit Carrier - ORUC",
            "description": "An animation of a rotating Orbital Replacement Unit Carrier as prepped for the Hubble Space Telescope Servicing Mission 4. This carrier will be placed in space shuttle Atlantis's cargo bay. || ",
            "hits": 29
        },
        {
            "id": 10227,
            "url": "https://svs.gsfc.nasa.gov/10227/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST SM4 Multi-Use Lightweight Equipment Carrier (MULE)",
            "description": "An animation of a rotating Multi-Use Lightweight Equipment Carrier (MULE) as prepped for the Hubble Space Telescope Servicing Mission 4. This carrier will be placed in space shuttle Atlantis's cargo bay aft of the Flight Support system. || ",
            "hits": 12
        },
        {
            "id": 10228,
            "url": "https://svs.gsfc.nasa.gov/10228/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST SM4 Super Lightweight Instrument Carrier (SLIC)",
            "description": "An animation of a rotating Super Lightweight Instrument Carrier (SLIC) as prepped for the Hubble Space Telescope Servicing Mission 4. This carrier will be placed in space shuttle Atlantis's cargo bay aft of the airlock and forward of the ORUC. This carrier made of composite material supports the enclosure holding the Wide Field Camera 3 among other things. SLIC's lightweight enables the space shuttle to carry more instruments and equipment. || ",
            "hits": 6
        },
        {
            "id": 10237,
            "url": "https://svs.gsfc.nasa.gov/10237/",
            "result_type": "Produced Video",
            "release_date": "2008-05-20T00:00:00-04:00",
            "title": "HST SM4 — Astronauts Close HST Doors for Last Time",
            "description": "Animation showing the Hubble Servicing Mission Servicing Mission 4 crew closing Hubble's aft doors for the last time. Astronaut gives camera 'thumbs-up' sign. || ",
            "hits": 15
        },
        {
            "id": 10210,
            "url": "https://svs.gsfc.nasa.gov/10210/",
            "result_type": "Produced Video",
            "release_date": "2008-05-19T00:00:00-04:00",
            "title": "Servicing Mission 4: Atlantis Cargo Bay Carrier Fly-Over",
            "description": "An animated look at the SM4 shuttle bay carrier configuration. The camera pauses at each of the main carrier systems. No labels. || ",
            "hits": 33
        },
        {
            "id": 10211,
            "url": "https://svs.gsfc.nasa.gov/10211/",
            "result_type": "Produced Video",
            "release_date": "2008-05-19T00:00:00-04:00",
            "title": "Shuttle Atlantis with HST From Out of the Sun",
            "description": "Animation of the space shuttle Atlantis with the Hubble Space Telescope berthed in its cargo bay. || ",
            "hits": 31
        },
        {
            "id": 10212,
            "url": "https://svs.gsfc.nasa.gov/10212/",
            "result_type": "Produced Video",
            "release_date": "2008-05-19T00:00:00-04:00",
            "title": "HST Out and Around",
            "description": "A close-up look at HST on orbit || ",
            "hits": 49
        },
        {
            "id": 10213,
            "url": "https://svs.gsfc.nasa.gov/10213/",
            "result_type": "Produced Video",
            "release_date": "2008-05-19T00:00:00-04:00",
            "title": "Slow Look at HST 1",
            "description": "A close-up look at HST on orbit || ",
            "hits": 36
        }
    ]
}