03 February 2017
Astronomers spot a possible dwarf planet on the edges of the Solar System
Astronomers have discovered a trans-Neptunian object (TNO) – most likely a dwarf planet – at the edges of the Solar System, making it the second-most distant TNO currently known. Known informally as “DeeDee” short for “distant dwarf” by the team ...
01 June 2018
Largest discovery of trans-Neptunian objects released
... full data set that includes the most accurate orbital data ever taken for a survey of trans-Neptunian objects (TNOs) this size. A trans-Neptunian object (TNO) is any minor planet in the Solar System that orbits the Sun at a greater average distance...
10 September 2021
Survey detects 461 Solar System objects not found before
... suggests is designed to help uncover the nature of dark energy, these objects are among a population of small bodies that orbit beyond Neptune called trans-Neptunian objects (TNOs). TNOs are classed as minor or dwarf planets and indeed Pluto is now...
13 March 2020
Over 100 new minor planets found in new astronomical survey
... searches for other undiscovered planets and for the hypothetical Planet Nine. The objects found in this bumper crop of discoveries are known as trans-Neptunian objects (TNOs). TNOs are any minor planet in the Solar System that orbits the Sun...
21 January 2019
Is this the end for Planet Nine?
... are much less affected by the known giant gas planets than for other less extreme trans-Neptunian objects (just regular TNOs). However for a group of them, at their points of closest approach to the Sun, something seems to be shepherding their...
27 February 2019
FarFarOut beats FarOut as most distant Solar System body ever seen
... Dr. Scott Sheppard and his colleagues last year is no longer the most distant object known about; it has been surpassed by FarFarOut – a newly discovered extreme Trans-Neptunian Object (eTNO) that is 140 AU away. The outer realm of the Solar System...
