{"id": "Zqx1C4XNLbw", "uploader": "UiO Realfagsbiblioteket", "uploader_id": "realfagsbiblioteket", "uploader_url": "http://www.youtube.com/user/realfagsbiblioteket", "channel_id": "UCynaukrA8wxvJOcyFQJN3Jg", "channel_url": "http://www.youtube.com/channel/UCynaukrA8wxvJOcyFQJN3Jg", "upload_date": "20150408", "license": null, "creator": null, "title": "Rosseland Lecture 2015 - Making, baking and breaking: Dust in the interstellar medium", "alt_title": null, "thumbnail": "https://i.ytimg.com/vi/Zqx1C4XNLbw/hqdefault.jpg", "description": "This year\u2019s Rosseland Lecture was held by Anja C. Andersen, associate Professor at Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen.\n\nDust grains are found everywhere in the space between the stars in galaxies. They are responsible for the formation of molecular hydrogen and for absorbing and re-emitting about 50% of the energy from all galaxies, as well as providing an effective coolant for star formation. Although important in various astrophysical processes, the origin and consequently the chemical make-up and emission properties of dust grains is largely unknown. 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