How did Jupiter and Saturn form? The answer may lie with the humble pebble
Thursday, August 20, 2015 - 06:00
in Astronomy & Space
After many decades of exploring the solar system, we still have much to learn about our closest celestial neighbours. One of the biggest remaining puzzles is how the giant gas planets managed to form in the early days of the solar system, with the leading theories suggesting that they could have formed by repeated collisions between objects about ten times smaller than our own moon.