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After 500–600 million years (about 4 billion years ago) Jupiter and Saturn fell into a 2:1 resonance: Saturn orbited the Sun once for every two Jupiter orbits. [47] This resonance created a gravitational push against the outer planets, possibly causing Neptune to surge past Uranus and plough into the ancient Kuiper belt. [69]
This model posits that, 4.6 billion years ago, the Solar System was formed by the gravitational collapse of a giant molecular cloud spanning several light-years. Many stars, including the Sun, were formed within this collapsing cloud. The gas that formed the Solar System was slightly more massive than the Sun itself.
1.3 billion Eukaryotic life dies out on Earth due to carbon dioxide starvation. Only prokaryotes remain. [83] 1.5 billion Callisto is captured into the mean-motion resonance of the other Galilean moons of Jupiter, completing the 1:2:4:8 chain. (Currently only Io, Europa and Ganymede participate in the 1:2:4 resonance.) [93] 1.5–1.6 billion
Once every 53.5 days, NASA's Juno probe screams over Jupiter's cloud, capturing stunning images in the process. NASA's $1 billion Jupiter probe just sent back dazzling new photos of the giant ...
While NASA workers were sipping coffee on Wednesday morning, the agency's Juno probe was screaming over the cloud tops of Jupiter at 130,000 miles per hour. NASA's $1 billion Jupiter probe has ...
The closest well-measured approach was Scholz's Star, which approached to ~ 50,000 AU of the Sun some ~70 thousands years ago, likely passing through the outer Oort cloud. [267] There is a 1% chance every billion years that a star will pass within 100 AU of the Sun, potentially disrupting the Solar System. [268]
Based on Jupiter's composition, researchers have made the case for an initial formation outside the molecular nitrogen (N 2) snow line, which is estimated at 20–30 AU (3.0–4.5 billion km; 1.9–2.8 billion mi) from the Sun, and possibly even outside the argon snow line, which may be as far as 40 AU (6.0 billion km; 3.7 billion mi).
Traveling above Jupiter at more than 130,000 miles per hour, NASA's $1 billion Juno probe took its ninth set of stunning flyby images on October 24.. But the sun slipped between the giant planet ...