Though this system has hoodwinked astronomers with planetary signals before, researchers say they're confident they have detected three new #planets and confirmed another around Barnard's #Star.
After peering at Barnard's Star over 112 nights, scientists found compelling evidence of four particularly small #exoplanets, each just some 20 to 30 percent the size of Earth.
The planets are considerably smaller than Mars, which is about half Earth's size.
#astronomy
https://mashable.com/article/planets-discovery-barnards-star-cosmic-neighbor
