'False Positive': These Exoplanets Are Actually Stars

Thousands of exoplanets have been discovered, but researchers now learned that several of them aren't actually planets. Using updated measurement methods, they found that the objects are actually stars. Exoplanets are the planets outside our solar system, whether free-floating or orbiting a star. Thousands of them have been discovered since they were first spotted in the 1990s. So far, almost 5,000 exoplanets have been confirmed, while 5,000 more are planetary candidates, or the ones that may be planets but haven't been confirmed, the Massachusetts Institute of Technology (MIT) noted.