Three planets remaining in 2014

Three planets remaining in 2014

2014

This image shows the location of the three planets remaining in 2014. Research published in 2014, led by Penn State astronomers, shows that two of the signals previously attributed to planets in the habitable zone actually are created by activity within the star itself. The outer (green) planet shown in the 2010 image now also is believed not to exist, based on work by other researchers since 2010. Blue indicates candidate planets in the habitable zone where conditions might be able to support life, orange indicates detections in the too-hot region that is too close to the star. 

Image: NASA/Penn State University