A surprising number
The creation of a whole solar system in less than 200,000 years is something quite remarkable, since before it was thought that it would have taken much longer; some experts even estimated that this phase could have developed between one and two million years. Apparently, nothing could be further from the truth. This period of time is significantly shorter than expected.
“Previously, we didn’t really know the period of formation of our solar system,” said LLNL cosmochemist Greg Brennecka, lead author of the paper published in the journal Science. “This work shows that this collapse, which led to the formation of the solar system, happened very quickly, in less than 200,000 years.” If we equate it with the development time of a human pregnancy, it is as if the gestation had lasted only 12 hours instead of nine months. “This was a quick process,” says Brennecka.
Thus, our solar system was formed about 4.5 billion years ago from the collapse of a dense cloud of interstellar gas and dust.
How many new secrets will our solar system hide? It is clear that we still have much to discover … For example, why is the configuration of the planets in our solar system so atypical?