Named 2017 OF201, the newly-discovered trans-Neptunian object is one of the most distant visible objects in our Solar System and is likely large (about...
Altjira, also known as 2001 UQ18, is located in the outer reaches of the Solar System, 6 billion km (3.7 billion miles) away, or 44 times the distance...
Astronomers have imaged planetesimal belts in 74 planetary systems as part of the REsolved ALMA and SMA Observations of Nearby Stars (REASONS) survey.
This...
A duo of planetary scientists from Brown University and the SETI Institute has found that the Kuiper Belt object (486958) Arrokoth, which was the target...
Kuiper Belt objects (KBOs) are thought to be the dominant source of interplanetary dust particles in the outer Solar System due to both collisions between...
The icy dwarf planets Eris and Makemake have surfaces bearing methane ice of unknown origin. According to an analysis of data from the NASA/ESA/CSA James...
The trans-Neptunian dwarf planet Eris is tidally locked to its small moon Dysnomia. Recently obtained bounds on the mass of Dysnomia demonstrate that Eris...
The 5-km-long mounds that dominate the appearance of the larger lobe of Kuiper Belt object (486958) Arrokoth are similar enough to suggest a common origin,...
New high-resolution images of the Fomalhaut A system from the NASA/ESA/CSA James Webb Space Telescope show three debris belts extending out to 23 billion...
Astronomers with the SKYSURF project have searched through 200,000 archival images from the NASA/ESA Hubble Space Telescope and made tens of thousands...
The dwarf planet Haumea resides in the Kuiper Belt beyond the orbit of the outermost planet Neptune.
An artist’s conception of Haumea, its moons Hi’iaka...
The Kuiper Belt object Arrokoth was the target of the January 1, 2019 flyby by NASA’s New Horizons mission.
Three prominent features on Arrokoth now...
Nicknamed ‘Farfarout’ and officially designated 2018 AG37, the newly-confirmed planetoid has a very elongated orbit that takes it out to 175 AU (astronomical...
Non-marine animals (amphibians, reptiles, birds and mammals) have apparently experienced at least 10 distinct episodes of intensified extinctions over...
A trans-Neptunian object designated 2014 WC510 is, in fact, a close binary system, according to an analysis of data obtained by the Research and Education...
Amir Siraj and Professor Avi Loeb from the Department of Astronomy at Harvard University have developed a new method to search for primordial black holes...
Our Solar System contains a large population of icy bodies stretching well beyond the orbit of Neptune. These objects are remnants from the early formation...
Pluto is thought to possess a subsurface ocean beneath its thick ice shell. It has generally been assumed that the dwarf planet formed out of cold material...
In 2016, Caltech astronomers Konstantin Batygin and Mike Brown proposed a strange alignment of icy Kuiper Belt objects (KBOs) on the outskirts of the Solar...
