Scientists at NASA's Goddard Space Flight Center in Greenbelt, Md. are in the early stages of working out the best design for a sample-collecting comet harpoon.", "items": [], "extra_data": {} }, { "id": 350401, "url": "https://svs.gsfc.nasa.gov/10813/#media_group_350401", "widget": "Video player", "title": "", "caption": "", "description": "The Comet Nucleus Sample Return mission will collect subsurface samples from a comet and return them to Earth. Comets and asteroids are leftover remnants from the early solar system and by studying samples from these objects, we can learn more about the formation of our solar system and may find clues to the origin of life on Earth.
For complete transcript, click here.", "items": [ { "id": 325264, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 480525, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010800/a010813/G2011-054_Comet_Nucleus_Sample_Return_Mission-MASTER_youtube_hq.00077_print.jpg", "filename": "G2011-054_Comet_Nucleus_Sample_Return_Mission-MASTER_youtube_hq.00077_print.jpg", "media_type": "Image", "alt_text": "The Comet Nucleus Sample Return mission will collect subsurface samples from a comet and return them to Earth. 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This design is the most promising.", "items": [ { "id": 325284, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 480545, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010800/a010813/Harpoon_Tip.jpg", "filename": "Harpoon_Tip.jpg", "media_type": "Image", "alt_text": "Many designs have been tested for penetration depth in several different material. This design is the most promising.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 325283, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 480544, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010800/a010813/Harpoon_Tip_web.png", "filename": "Harpoon_Tip_web.png", "media_type": "Image", "alt_text": "Many designs have been tested for penetration depth in several different material. 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