It almost sounds like something from a comic strip: A total supermoon lunar eclipse, also known as a blood moon.<br />But this is for real - and it's happening Sunday night through Monday.<br />What's actually happening is a confluence of three things.<br />The moon will be full and in its closest point in its orbit around the Earth, making it a so-called supermoon, according to Dr. David Wolf, a former NASA astronaut and "extraordinary scientist in residence" for The Children's Museum.<br />In addition to this, a lunar eclipse will occur.<br />In other words, the Earth will line up directly with the sun and moon, directly between the two, Wolf said.<br />So the "moon will completely fall in the shadow of the Earth," he said.<br />The last time this happened was in 1982.<br />The next time this will happen will be 2033.
