New meteorite data suggest the orbits of the giant planets abruptly changed about 60 million to 100 million years after the solar system started forming.
What are the hints that 'Planet Nine' may exist on edge of our solar system? - Quora
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Planets without stars might have moons suitable for life
Mercury has a massive solid inner core
Astronomers Believe They're Witnessing The Birth Of A New Planet
Jupiter Could Make Earth Hospitable, Scientists Say
Flashes in Venus' atmosphere might be meteors, not lightning
Saturn says 'cheese
Giant planet 'destabilization' may have coincided with the birth of Earth's moon
Abu Hureyra, Syria, Part 3: Comet airbursts triggered major climate change 12,800 years ago that initiated the transition to agriculture – ScienceOpen
Saturn's rings and tilt might have come from one missing moon
Impact from a space rock may have helped shape Pluto's heart