Search results for Sedna

Astronomy Oct 2, 2018

New extremely distant solar system object found during hunt for Planet X

Carnegie's Scott Sheppard and his colleagues—Northern Arizona University's Chad Trujillo, and the University of Hawaii's David Tholen—are once again redefining our Solar System's edge. They discovered a new extremely ...

Astronomy Aug 9, 2018

Impact of a stellar intruder on our solar system

The solar system was formed from a protoplanetary disk consisting of gas and dust. Since the cumulative mass of all objects beyond Neptune is much smaller than expected and the bodies there mostly have inclined, eccentric ...

Astronomy Jun 4, 2018

Collective gravity, not Planet Nine, may explain the orbits of 'detached objects'

Bumper car-like interactions at the edges of our solar system—and not a mysterious ninth planet—may explain the dynamics of strange bodies called "detached objects," according to a new study.

Astronomy May 18, 2017

Hubble spots moon around third largest dwarf planet

The combined power of three space observatories, including NASA's Hubble Space Telescope, has helped astronomers uncover a moon orbiting the third largest dwarf planet, catalogued as 2007 OR10. The pair resides in the frigid ...

Astronomy Apr 19, 2017

Our discovery of a minor planet beyond Neptune shows there might not be a 'Planet Nine' after all

Ever since enthusiasm started growing over the possibility that there could be a ninth major planet orbiting the sun beyond Neptune, astronomers have been busy hunting it. One group is investigating four new moving objects ...

Astronomy Feb 21, 2017

New data about two distant asteroids give a clue to the possible 'Planet Nine'

The dynamical properties of these asteroids, observed spectroscopiccally for the first time using the Gran Telescopio CANARIAS, suggest a possible common origin and give a clue to the existence of a planet beyond Pluto, the ...

Space Exploration Oct 12, 2016

New dwarf planet found in our solar system

(Phys.org)—A team of space scientists at the University of Michigan has discovered a dwarf planet that is approximately half the size of Pluto and twice as far from the sun. The sighting was reported by NPR, which interviewed ...

Astronomy Jul 21, 2016

Newly discovered solar system objects resonate with Neptune

The search for distant solar system objects has found two more small worlds far outside the orbit of Neptune. The new objects are located beyond the Kuiper Belt, which is a belt of small icy objects just beyond Neptune, of ...

Space Exploration Jun 13, 2016

Extreme trans-Neptunian objects lead the way to Planet Nine

In the race towards the discovery of a ninth planet in our solar system, scientists from around the world strive to calculate its orbit using the tracks left by the small bodies that move well beyond Neptune. Now, astronomers ...

Space Exploration Mar 14, 2016

Kuiper Belt objects point the way to Planet 9

On January 20th, 2016, researchers Konstantin Batygin and Michael E. Brown of Caltech announced that they had found evidence that hinted at the existence of a massive planet at the edge of the Solar System. Based on mathematical ...

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