NASA: Humankind’s First Close-up look on Icy Remnants of Solar System Formation

We have whole new data from the NASA’s New Horizons mission which is helping us decode the mystery of how planets in our solar systems were formed.

The New Horizon spacecraft provided first look at one of the icy remnants of solar system formation in the region beyond Neptune’s orbit. It flew past Kuiper Belt object Arrokoth (2014 MU69) on 1st January 2019.

Alan Stern, New Horizons Principal Investigator said, “eb is the most distant, most primitive and most pristine object ever explored by spacecraft, so we knew it would have a unique story to tell. It’s teaching us how planetesimals formed, and we believe the result marks a significant advance in understanding overall planetesimal and planet formation.”

Lori Glaze, director of NASA’s Planetary Science Division said that this feat is very exciting and has made this mission a very successful and history-making one. She also added that this knowledge is going to remold our understanding of how planetary bodies were formed.

The data was transferred from more than 4 billion miles away from Earth which was gathered from the shape, size, geology, color and composition of the stellar object.

The object looks like a snowman as it has a small spherical top on a big spherical bottom.

The result of this endeavor is that the century-long debate of whether planets were formed with a violent accumulation of stellar objects or gently coming together, has ended. The data from Arrokoth shows that planets were formed with matter gently clumping together. This is a rare thing to happen in the space-science domain, to have a debate settled.

Dr. Alan Stern, study’s lead researcher, found this feat to be of “stupendous magnitude.” He told BBC News, “There was the prevailing theory from the late 1960s of violent collisions and a more recent emerging theory of gentle accumulation. One is dust and the other is the only one standing.”

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