The First Trimester Screen is a new, optional non-invasive evaluation that combines a maternal blood screening test with an ultrasound evaluation of the fetus to identify risk for specific chromosomal abnormalities, including Down Syndrome Trisomy-21 and Trisomy-18.
According to NASA, the next total lunar eclipse will be on January 31, 2018, and will be seen in Asia, Australia and North America. Penumbral lunar eclipses will occur on March 23, 2016, September 16, 2016, and February 11, 2017. Penumbral eclipses are more difficult to observe because only part of the moon is eclipsed.
Editor's note: The next lunar eclipse will be a total lunar eclipse on Sept. 27. It will occur while the moon is at perigee, making it a rare Supermoon Blood Moon lunar eclipse. Such an event won't happen again until 2033. The moon shows its full face to Earth once a month. Well, sort of. In fact, when things are perfectly aligned and the moon would be 100 percent full, there is a lunar eclipse, so in reality the moon is never perfectly full. And sometimes â once in a blue moon â it is full twice in a month.