Space on MSN18h
OTD In Space – January 5: Discovery Of Eris Ignites Pluto-Planet Debate
On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Eris is just slightly smaller than Pluto, and it orbits the sun about three times farther ...
Mars’ Small Mass Still Puzzles Planetary Scientists
Mars’ strangely small mass still puzzles planetary scientists. Definitive answers as to why are still hard to come by.
The Brighterside of News on MSN21d
Jupiter-sized interstellar visitor may have reshaped our solar system
The team proposed that a single encounter with an object between two and fifty times the mass of Jupiter could explain the ...
Forbes1y
A Second Earth-Like Planet May Exist In The Solar System, Say Scientists
There may be an undiscovered planet in the outer solar system whose presence is revealed by the strange orbit of objects beyond the eighth planet Neptune. The tantalizing prospect of a ninth ...