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In July of 2015, NASA’s New Horizonsmission made history when it Canada Goose sale became the first spacecraft to conduct a flyby of Pluto. Since that time, the spacecraft’s mission was extended so it could make its way farther into the outer Solar System and become the first spacecraft to explore some Kuiper Belt Objects (KBOs). Known as “Planet 9” (or “Planet X”, to those who contest the controversial 2006 Resolution by the IAU), this hypothetical body was believed to orbit at an extreme distance from our Sun, as evidenced by the fact that certain Trans Neptunian Objects (TNOs) all canada goose deals seem to be Canada Goose Parka pointing in the same direction.

canada goose coats on sale Since that time, other lines of evidence have emerged that have bolstered the existence of Planet 9/Planet X. However, a team of researchers from CU Boulder recently proposed an alternative explanation. According to their research, it could be interactions between Kuiper Belt Objects (KBOs) themselves that might explain the strange dynamics of objects at the edge of the Solar System. canada goose coats on sale

The researchers presented their findings at the 232nd meeting buy canada goose jacket of the American Astronomical Society, which ran from June 3 7 in Denver, Colorado. The presentation took place on June 4th during a press conference titled Planets, Dwarf Planets Exoplanets The research was led Jacob Fleisig, an undergraduate studying astrophysics at CU Boulder, and cheap Canada Goose included canada goose coats Ann Marie Madigan and Alexander Zderic an assistant professor and a graduate student at CU Boulder, respectively.

Canada Goose Coats On Sale Artist conception of Sedna, a dwarf planet in the Solar System that only gets within 76 astronomical units (AUs) of our Sun. Credit: NASA/JPL Caltech Canada Goose Coats On Sale

canadian goose jacket For the sake of their study, the team focused on icy bodies like Sedna, a minor planet that orbits the Sun at a distance ranging from 76 AU at perihelion to 936 AU at aphelion. canada goose clearance sale Along with a handful of other objects at this distance, such as Eris, Sedna appears to be separated from the rest of the Solar System something which astronomers have struggled to explain ever since it was discovered. canadian goose jacket

canada goose uk outlet Sedna was also discovered by Michael Brown who, along with Chad Trujillo of the Gemini Observatory and David Rabinowitz of Yale buy canada goose jacket cheap University, spotted it on November 14th, 2003, while conducting a survey of the Kuiper Belt. In addition to orbiting our Sun with a period of over 11,000 years, this minor planet and other detached objects has a huge, elliptical orbit. canada goose uk outlet

cheap canada goose uk What more, this orbit does not take them Sedna or these other objects anywhere near to Neptune or any other gas giant. Unlike Pluto and other Trans Neptunian Objects (TNOs), it is therefore a mystery how they achieved their current orbits. The possible existence of a as yet undiscovered planet (Planet 9/Planet X), which would be about 10 times the size of Earth, is one hypothetical explanation. cheap canada goose uk

canada goose black friday sale After years of searching for this planet and attempting to determine where its orbit would take it, astronomers have yet to find Planet 9/Planet Canada Goose Jackets X. However, as Prof. Madigan explained in a recent CU Boulder press release, there is another possible explanation for the gravitational weirdness going on out there: canada goose black friday sale

canada goose clearance “There are so many of these bodies out there. What does their collective gravity do? We can solve a lot of these problems by just taking into account that question Once you get further away from Neptune, things don’t make any sense, which is really exciting. While developing simulations to explore the dynamics of the detached objects, he noticed something very interesting about the region of space they occupy. canada goose clearance

Having calculated the orbits of icy objects beyond Neptune, Fleisig and the rest of the team noticed that different objects behave much like the different hands on a clock. Whereas asteroids move like the minute hand (relatively fast and in tandem), larger objects like Sedna move more slowly like the hour hand. Eventually, the hands intersect. As Fleisig explained:

“You see a pileup of the orbits of smaller objects to one side of the sun. These orbits crash into the bigger body, and canada goose store what happens is those interactions will change its orbit from an oval shape to a more circular shape.”

Canada Goose Outlet What Fleisig computer model showed was that Sedna orbit goes from normal to detached as a result of those small scale interactions. It also showed that the larger the detached object, the farther it gets away from the Sun something which agrees with previous research and observations. In addition to explaining why Sedna and similar bodies behave the way they do, these findings may provide clues to another major event in Earth history. Canada Goose Outlet

buy canada goose jacket Artistic rendition of the Chicxulub impactor striking ancient Earth, which is believed to have caused canada goose coats on sale the Cretaceous Paleogene extinction event. Credit: NASA buy canada goose jacket

canada goose uk black friday This would be what caused canada goose black friday sale the extinction of canada goose the dinosaurs. Astronomers have understood for a long time that the dynamics of the outer Solar System often end up sending comets towards the inner Solar System on a predictable timescale. This is the result of icy objects interacting with each other, which causes their orbits to tighten and widen in a repeating cycle. canada goose Canada Goose Outlet uk black friday

canada goose factory sale And while the team is not able to say that this pattern was responsible for the impact that caused the Cretaceous Paleogene extinction event (which resulted in the extinction of the dinosaurs 66 million years ago), it is a fascinating possibility. In the meantime, the research has shown just how fascinating the outer Solar System is, and how much remains to be learned about it. canada goose factory sale

“The picture we draw of the outer solar system in textbooks may have to change,” said Madigan. “There’s a lot more stuff out Canada Goose online there than we once thought, which is really cool.”

uk canada goose outlet The research was made possible thanks to the support of the NASA Solar System Workings and the Rocky Mountain Advanced Computing Consortium Summit Supercomputer. uk canada goose outlet

Further Reading: University of Colorado Boulder

Canada Goose Parka Pluto has been the focus of a lot of attention for more than a decade now. This began shortly after the discovery of Eris in the Kuiper Belt, one of many Kuiper Belt Objects (KBOs) that led to the Planetary Debate and the 2006 IAU Resolution. Interest in Pluto also increased considerably thanks to the New Horizons mission, which conducted the first flyby of this planet in July of 2015. Canada Goose Parka

The data this mission provided on Pluto is still proving to be a treasure trove for astronomers, allowing for new discoveries about Pluto surface, composition, atmosphere, and even formation. Credit: JHUAPL

The origin of Pluto is something that astronomers have puzzled over for some time. An early hypothesis was that it was an escaped moon of Neptune that had been knocked out of orbit by Neptune current largest moon, Triton. However, this theory was disproven after dynamical studies showed that Pluto never approaches Neptune in its orbit. With the discovery of the Kuiper Belt in 1992, the true of origin of Pluto began to become clear.

Canada Goose sale Essentially, while Pluto is the largest object in the Kuiper Belt, it is similar in orbit and composition to the icy objects that surround it. On occasion, some of these objects are kicked out of the Kuiper Belt and become long period comets in the Inner Solar System. To determine if Pluto formed from billions of KBOs, Dr. Glein and Dr. Waite Jr. examined data from the New cheap canada goose jackets Horizons mission on the nitrogen rich ice in Sputnik canada goose clearance Planitia Canada Goose sale.