A Ph.D. student and his supervisor have developed a simple way to test for active life on Mars and other planets using equipment already on the Mars Curiosity rover and planned for future use on ...

An immunoglobulin test checks how well your immune system works. Learn why you might need this test.

Think you might be pregnant? Consider taking a home pregnancy test. But before you do, learn how pregnancy tests work, when to take one, and how accurate they are.