{"id": 813576458052452352, "lang": "en", "text": "Astronomer Vera Rubin, a pioneer in the study of dark matter, has died. Here\u2019s @LKrauss1 tribute on @sciam: https://t.co/S3gR9B3nA4", "urls": [{"url": "https://t.co/S3gR9B3nA4", "expanded_url": "https://blogs.scientificamerican.com/guest-blog/vera-rubin-1928-2016/"}], "user": {"id": 41712825}, "id_str": "813576458052452352", "source": "<a href=\"http://twitter.com\" rel=\"nofollow\">Twitter Web Client</a>", "deleted": false, "hashtags": [], "retrieved": "2017-05-27--22-48-27", "created_at": "Tue Dec 27 02:45:17 +0000 2016", "retweet_count": 51, "user_mentions": [{"id": 556151596, "name": "Lawrence M. Krauss", "screen_name": "LKrauss1"}, {"id": 14647570, "name": "Scientific American", "screen_name": "sciam"}], "favorite_count": 78, "legacy_imported": true}