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At the Edge of the Solar System, a Distant World Challenges Our Understanding of Planetary Frontiers
The object’s aphelion – the farthest point on the orbit from the Sun – is more than 1,600 times that of the Earth’s orbit,” said Sihao Cheng of the Institute for Advanced Study, discussing the ...
The solar system officially has a new, extraordinarily dwarf member: “suggests it may be more populated than we thought”
A new member of the solar system has been detected, the second-largest of its kind, suggesting there may be more like it ...
Scientists Say They’ve Found a Dwarf Planet Very Far From the Sun
The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...
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We May Find the Ninth Planet in Our Solar System This Year
Pluto was long considered the ninth planet of the solar system, but changes to the definition of planet got it kicked out of ...
In what order did the planets in our solar system form?
Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...
ABC News1mon
Could our solar system have 9 planets after all? Astronomers may have confirmed possible existence.
Our solar system may have a ninth planet after all ... Two deep infrared surveys taken 23 years apart measured the object's orbital motion. In 1983, the Infrared Astronomy Satellite surveyed ...
NBC News1mon
Tatooine-like planet outside the solar system may orbit twin stars
A new Tatooine-like planet outside the solar system may orbit two failed stars ... In a new analysis, researchers found that the brown dwarfs’ motion was changing — a quirk that’s ...