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Astronomers announce the discovery of trans-Neptunian object 2018 VG, the most distant object in the Solar System ever observed at a distance of ~120 ul=AU.
2018-12-17

2015 TH (previously known as V774104), a 100–400 kilometer asteroid, is announced as possibly the fourth most distant known Solar System object from the Sun at nearly 90 (±10) times Earth's distance from the Sun.
2018-03-13

NASA astronomers use the Hubble and Spitzer space telescopes in research implying that "hot Saturn" (high surface-atmosphere temperatures and gas giant-mass) exoplanet WASP-39b, located 700 light-years from Earth, has a large amount of water molecules in its atmosphere.
2018-03-1

After 20 years "floating" the Solar System, the "Cassini" space probe to the Saturn system ends the mission with a controlled fall into the atmosphere of the planet.
2017-09-15

Astronomers announce that 2014 UZ224 is the third most distant Solar System object known from our Sun, currently over 90 times the Earth's distance from the Sun (90.8 AU or 8.44 billion miles), after Eris (96.2 AU) and V774104 (~103 AU).
2016-10-11

Researchers from Konkoly Observatory in Budapest, Hungary, reveal that (225088) 2007 OR10 is the third largest dwarf planet in the Solar System.
2016-05-12

Astronomers announce the discovery of V774104, the most distant object yet found in the Solar System, a dwarf planet orbiting at three times the distance of Pluto.
2015-11-11

Astronomers announce that the newly discovered double star system WISE 1049-5319 is the third-closest neighbor to the Solar System.
2013-03-11

Alpha Centauri Bb, an exoplanet, is discovered orbiting around Alpha Centauri, the nearest star system to our Solar System.
2012-10-17

The Voyager 1 space probe becomes the first human-made object to successfully exit the Solar System and enter Interstellar space, and to an extent, becoming the first Interstellar probe, pioneering Interstellar exploration.
2012-08-25