Caltech / R. Hurt (IPAC)
Outside of Neptune's past, something odd happens to the orbits of a bunch of cosmic rocks that roam around the sun. Something, scientists say, can only be described by the presence of a giant planet ̵
1; the so-called "Planet nine".
This is confused astronomers for years and now there is another candidate for space volatility, which is not a planet at all. which exist in the gap between Neptune and the rest of the cosmos. Some TNTs share unusual, highly elliptical orbits and are grouped in one direction. It is assumed that the planet is up to four times wider than the Earth that rotates lonely at the edges of the dark space, influencing the TNOs.
The new study, published January 21, which will be published in the Astronomical Journal, outlined an alternative explanation for this strange phenomenon and suggests that grouped orbits may not be the result of Planet Nine. A team from the University of Cambridge and the American University of Beirut believes that the disk of "small ice bodies" with "a combined mass that is ten times larger than Earth's," is responsible for the mysterious orbits. the hypothesis is fascinating, but if there is a hypothesis about the ninth planet, so far she has avoided discovery, "said Anthran Sephilian, a co-author of the new study. "We wanted to see if there could be another, less dramatic and perhaps more natural cause of the unusual orbits we see in some TNOs."
Astronomers were fascinated by the idea that a giant planet could lie outside of Neptune, right at the end of our space neighborhood. The first hypothesis was proposed in 2014 because of its gravitational attraction to distant TNOs, and as more and more remote sites were discovered, the evidence that their orbits were caused by the overwhelming Earth seems to accumulate. Even the deviations seen in NASA's Cassini spacecraft may have hinted at its existence. an ice debris disk that exists outside of Neptune is large enough, he would easily explain the eccentric orbits of TNOs previously reported because of their combined gravitational effects. In both cases – the planet or the disk – the sad truth is that we can not even see our place in the solar system. But that means that the Planet-ninth is not necessarily on the ground because Sephilian and Toma do not exclude that both the giant disk and the super-Earth exist together. things may be true – there may be a massive disk and a ninth planet, "Cephilian said.
And this is not the first time that the alternative theory is open. In June 2018, a group of researchers suggested that the cause of these strange orbits might even be a gang of asteroids hanging in the distant corners of space that throw comets at us . the great mysteries of the solar system continue …
CES 2019: See all of CNET's coverage for the biggest technology show of the year.
NASA is 60 years old: The space agency has taken humanity away from everyone else and has planned to continue.