Search results for Trans Neptunian Object

Astronomy Jul 13, 2017

New evidence in support of the Planet Nine hypothesis

Last year, astronomers announced the existence of an unknown planet in our solar system. However, this hypothesis was subsequently called into question as biases in the observational data were detected. Now, Spanish astronomers ...

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 Apr 12, 2017

ALMA investigates 'DeeDee,' a distant, dim member of our solar system

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have revealed extraordinary details about a recently discovered far-flung member of our solar system, the planetary body 2014 UZ224, more informally ...

Space Exploration Feb 22, 2017

A geophysical planet definition

In 2006, during their 26th General Assembly, the International Astronomical Union (IAU) adopted a formal definition of the term "planet". This was done in the hopes of dispelling ambiguity over which bodies should be designated ...

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 ...

Astronomy Dec 13, 2016

Dark Energy Survey discovers potential new dwarf planet

Thanks to scientists on the Dark Energy Survey (DES), the solar system just got another member.

Astronomy Oct 24, 2016

Kepler has caught hundreds of asteroids

Previously, the Kepler space telescope looked straight out from the solar system in a direction almost perpendicular to the ecliptic and the plane of the planets. This way, it could observe the same spot all year long, as ...

Astronomy Aug 29, 2016

Hunt for ninth planet reveals new extremely distant solar system objects

In the race to discover a proposed ninth planet in our Solar System, Carnegie's Scott Sheppard and Chadwick Trujillo of Northern Arizona University have observed several never-before-seen objects at extreme distances from ...

Astronomy Aug 17, 2016

Beyond Neptune, a chunk of ice is orbiting the sun in the wrong direction

Beyond the orbit of Neptune, the farthest recognized-planet from our sun, lies the mysteries population known as the Trans-Neptunian Object (TNOs). For years, astronomers have been discovering bodies and minor planets in ...

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