Astronomy24 年
20 years ago, the discovery of Eris spelled doom for planet Pluto
When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...
来自MSN11 个月
Distant worlds Eris and Makemake unveil surprisingly active natures to the world's largest ...
The studies - both published in Icarus - look at something astronomers already knew: that Eris and Makemake ... Pluto was explored via the New Horizons flyby in 2015, and Voyager 2 swept by ...