The two planets orbit the star of Teegarden, an ancient star only 12 light-years from Earth. ("Only" is relative – 12 light-years equals 70,540,000,000,000 miles.) Research on the planets and their sun, published in the journal Astronomy and Astrophysics, shows that Teegarden's star appears to be stable without major solar flares or other violent actions activity that could jeopardize the life potential of the two promising candidates.
If the estimated orbital and rotational velocities are accurate and there are no unexpected factors in the solar system that interfere with astronomers' other calculations, the two planets of Teegarden could harbor rocky environments and flowing, puddling water. But all these assumptions are estimates, not first-hand observations. The discoveries of the Tegardian planet are part of a larger effort by astronomers to locate potentially life-sustaining planets to refine and learn about observation and research technologies such as high-performance telescopes.