Page 2 - Eric Agol News Today

 E-Mail IMAGE: This illustration shows three possible interiors of the seven rocky exoplanets in the TRAPPIST-1 system, based on precision measurements of the planet densities. Overall the TRAPPIST-1 worlds have remarkably... view more  Credit: NASA/JPL-Caltech A new international study led by astrophysicist Eric Agol from the University of Washington has measured the densities of the seven planets of the exoplanetary system TRAPPIST-1 with extreme precision, the values obtained indi...

TRAPPIST-1 Family of Planets: Rocky Through and Through? Precise measurements reveal that the exoplanets have remarkably similar densities, which provides clues to their composition Measuring the mass and diameter of a planet reveals its density, which can give scientists clues about its composition. Scientists now know the density of the seven TRAPPIST-1 planets with a higher precision than any other planets in the universe, other than those in our own solar system. Credit: NASA/JPL-Caltech. T...

Artist’s depiction of the TRAPPIST-1 star and its seven worlds.NASA/JPL-Caltech/R. Hurt (IPAC) The TRAPPIST-1 star system is home to the largest batch of roughly Earth-size planets ever found outside our solar system. Discovered in 2016 some 40 light-years away, these seven rocky siblings offer a glimpse at the tremendous variety of planetary systems that likely fill the universe. A study accepted by the Planetary Science Journal shows that the planets share similar densities. That could mean...

Artist’s depiction of the TRAPPIST-1 star and its seven worlds.NASA/JPL-Caltech/R. Hurt (IPAC) The TRAPPIST-1 star system is home to the largest batch of roughly Earth-size planets ever found outside our solar system. Discovered in 2016 some 40 light-years away, these seven rocky siblings offer a glimpse at the tremendous variety of planetary systems that likely fill the universe. A study accepted by the Planetary Science Journal shows that the planets share similar densities. That could mean...