Lisa Messeri

Nota: Este archivo abarca los artículos publicados por el autor desde el 1 de abril de 2009. Para fechas anteriores realice una búsqueda entrecomillando su nombre.

Yesterday, the European Southern Observatory announced that astronomers have detected a planet the size of Earth orbiting our nearest star, Proxima Centauri. We discover hundreds of “exoplanets” every year, but this one is different: It orbits its star at just the right distance so that, in theory, it’s possible it could sustain life. This detection of a “goldilocks” planet so close to our own marks a significant achievement for exoplanet astronomy, the young field devoted to the search for and study of planets orbiting stars other than our sun.

The European Southern Observatory’s news release explains that Proxima Centauri, unlike the other two stars in its system, is a red dwarf, smaller and cooler than our sun.…  Seguir leyendo »