Tag Archives: closest

It is notoriously difficult for transplant patients around the world to secure life-saving donor organs, thanks to limited supply, long waitlists, and complex qualification criteria. While some biomedical researchers hope to mitigate this problem by reviving dead tissue and 3D printing human organs, a favored strategy, xenotransplantation, involves taking an …

Just 5.96 light-years from Earth sits Barnard’s Star, a red dwarf with a fifth of the Sun’s diameter and even less of its mass. Considered a solitary star for its lack of stellar companions, Barnard’s Star is notoriously lonely—signs of any exoplanets in its orbit have come and gone without …