Inflammatory bowel disease refers to a number of disorders that cause chronic inflammation of the digestive tract. 1  Crohn's disease and ulcerative colitis are most common; their symptoms include: 2  swelling and sores along the tissue lining the digestive tract; 3  abdominal pain; 4  frequent diarrhea; and, 5  rectal bleeding.
Depiction of the northern auroral oval from the Ovation site on July 15, 2013. Southern Canada and the northern fringe of the U.S. were under the oval with northern lights visible. The red âview lineâ shows how far south the aurora could be seen that night.
Where can you see the aurora borealis? The aurora borealis is normally only visible from within 20 degrees of latitude of the North Pole. In North America, most viewing opportunities are limited to those in Alaska or the extreme northern parts of Canada. However, solar flares and geomagnetic activity can vastly increase the size of the aurora borealis, making its lights much more active and visible to much of the United States.