[DOC] [TLE] Is Pluto or Neptune farthest from the Sun? - StarChild - NASA [PAR] Pluto last crossed inside Neptune's orbit on February 7, 1979, and temporarily 
became the 8th planet from the Sun. Pluto will cross back over Neptune's orbit 
again on February 11, 1999 to resume its place as the 9th planet from the Sun for 
the next 228 years. Diagram of Pluto's and Neptune's orbit, on a distance scale in
... [DOC] [TLE] Pluto to become most distant planet - JPL - NASA [PAR] What's the significance of February 11, 1999 for Pluto? On February 11, Pluto will 
move farther from the Sun than Neptune, regaining its status as ... Unlike the 
other planets in our solar system, Pluto has a highly elliptical orbit, completing its
... [DOC] [TLE] Space Today Online -- Exploring the Solar System Planet Pluto [PAR] It's one of the most mysterious objects in our Solar System because it's the 
farthest ... In 1999, it crossed Neptune's path to again become the Solar System's 
most ... the spacecraft then will fly on to pass by one or more of the icy asteroid-
sized ... The 2006 New Horizons blastoff from Earth is the last launch opportunity 
for... [DOC] [TLE] Will Pluto Ever Hit Neptune? - Live Science [PAR] Feb 27, 2013 ... Since Pluto's orbit intersects Neptune's orbit, will Pluto ever crash into Neptune or 
become one of Neptune's ... From 1979 to 1999, Pluto was the eighth planet from 
the sun. ... Our Solar System: Facts, Formation and Discovery. [DOC] [TLE] List of Solar System probes - Wikipedia [PAR] This is a list of space probes that have left Earth orbit organized by their planned 
destination. ... For a list of landers only, see Landings on other planets. ... 12 
Uranus probes; 13 Neptune probes; 14 Pluto probes; 15 Comet probes ... Flyby: 
The probe flies by an astronomical body, but does not orbit it; Orbiter: Part of a 
probe... [DOC] [TLE] Neptune - Wikipedia [PAR] Neptune is the eighth and farthest known planet from the Sun in the Solar System
. In the Solar .... Soon, Neptune became the internationally accepted name. ... 
known planet, except for a 20-year period between 1979 and 1999 when ..... The 
long orbital period of Neptune means that the seasons last for forty Earth years. [DOC] [TLE] Formation and evolution of the Solar System - Wikipedia [PAR] The formation of the Solar System began 4.6 billion years ago with the 
gravitational collapse of ... Some planets will be destroyed, others ejected into 
interstellar space. .... Several simulations of our young Sun interacting with close-
passing stars over .... Beyond Neptune, the Solar System continues into the 
Kuiper belt, the... [DOC] [TLE] The Solar System: Neptune | The Institute for Creation Research [PAR] Neptune is the only planet in our solar system that was known to exist before it 
was visually discovered. .... It is hard to imagine how such a process could last for 
billions of years, but is not a ... aligned with the rotation axis and does not pass 
through the center of the planet. ... This was the case between 1979 and 1999. [DOC] [TLE] Solar System Planets: Order of the 8 (or 9) Planets - Space.com [PAR] Jan 22, 2016 ... [The Evidence for 'Planet Nine' in Our Solar System (Gallery)] ... Venus, Earth, 
Mars, Jupiter, Saturn, Uranus, Neptune  and Planet Nine. ... This is because, 
while the first two are dominated by gas, while the last two have more ice. .... 11, 
1999, it crossed Neptune's path and once again became the solar... [DOC] [TLE] 10 Interesting Facts About Neptune - Universe Today [PAR] Perhaps it is because Neptune is the most distant planet from our Sun, ... When it 
was first discovered by in 1846, Neptune became the most distant planet in the 
Solar System. ... The last time this happened was in 1979, which lasted until 1999
. ... At the top of its clouds, temperatures on Neptune can dip down to 51.7 Kelvin

Question: In 1999 it will pass Neptune to become the last planet in our solar system
Answer: Pluto