Orbital cellulitis is a rare complication of orbital fracture, and seems to be more common when paranasal sinus infection preexists or occurs within several weeks of the injury. Oral antibiotics given after the orbital injury may not prevent orbital cellulitis or abscess formation.
Marine debris is any man-made object that enters the coastal or marine environment. From the tiniest piece of plastic to giant free-floating fishing nets, ocean pollution causes many challenges for animals in the wild.
Space debris, also known as orbital debris, space junk and space waste, is the collection of manmade defunct objects in orbit around Earth. This includes spent rocket stages, old satellites and fragments from disintegration, erosion and collisions.anmade space debris has been dropping out of orbit at an average rate of about one object per day for the past 50 years. Variation in the average rate occurs as a result of the 11-year solar cycle, averaging almost three objects per day at solar maximum due to the heating (and expansion) of the Earth's atmosphere.