Spaceflight Insider

News Archive / Tagged: Planet 9

  • Papers present evidence for super Earth in the outer solar system

    Laurel KornfeldMarch 1st, 2019

    Two new academic papers present new evidence that a large, as yet undiscovered planet is lurking in the outer solar system.

  • Brown dwarf discovered with the help of citizen scientists

    Ocean McIntyreJuly 20th, 2017

    Sometimes in science, when you search for one thing, you end up finding something completely different. Such is the case with the search for the thus far elusive Planet Nine and the citizen scientists who ended up finding a brown dwarf instead.

  • Website funded by NASA enables citizens to search for objects beyond Neptune

    Collin SkocikFebruary 26th, 2017

    With the groundbreaking discovery of seven Earth-sized planets orbiting the red dwarf TRAPPIST-1, readers might be interested to know that NASA has a website called "Backyard Worlds: Planet 9" – which allows everyday people to participate in the search for new worlds.

  • New Horizons could help us locate possible planets beyond Neptune

    Tomasz NowakowskiFebruary 10th, 2016

    The recent discovery of evidence of a giant planet lurking in the outskirts of the Solar System made by Caltech astronomers has re-ignited the discussion about the existence of planets beyond Neptune. We could be really on the verge of confirming the presence of a hypothetical ‘Planet Nine’ and NASA’s New Horizons spacecraft, our messenger to Pluto and trans-Neptunian objects might have the final word in this debate.

  • Scientists find evidence of ‘Planet Nine’

    Jim SharkeyJanuary 22nd, 2016

    Two scientists from Caltech have discovered evidence of a giant planet with a bizarre, elongated orbit in the outer Solar System. The object, dubbed "Planet Nine" by the scientists, has a mass of about 10 times that of Earth and orbits the Sun at an average distance of approximately 20 times farther away than does Neptune; it would take this new planet between 10,000 and 20,000 years to make one orbit around the Sun.