Triton isn’t just any moon – it’s one of the most mysterious objects in the entire solar system. In this video, we explore ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

A new planet was possibly discovered beyond the planet Neptune. Researchers from the Institute for Advanced Study's School of Natural Sciences have announced the discovery of a new dwarf planet at ...

Astronomers have recently spotted one such object — a newly confirmed dwarf planet, named 2017 OF201, drifting far beyond Neptune’s orbit. The object is about 700 kilometres wide and lies ...

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune. It is the "clearest view ...

The TNO, which are described as minor planets that orbit the sun at a greater distance than Neptune, were found on the edge of our solar system. While there are plenty of other TNOs in the solar ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

Forget Planet 9 — that hypothetical giant in the distant realms of our solar system. Two University of Arizona planetary dynamicists say we should be looking closer in for a body about the size ...

But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit circumnavigates the sun once every 25,000 years, taking it ...

Webb Telescope Spots Infant Planets in Different Stages of Development ... five times as far as our solar system's outermost planet Neptune. The planet is surrounded by a disk of small-grained ...

The five dwarf planets recognized by the International ... the massive size of 2017 OF201's orbit compared to those of Neptune and Pluto. Institute for Advanced Study Cheng and his colleagues ...

Welcome to the universe of parallel playgrounds—where seesaws hover in anti-gravity capsules, and jungle gyms coil like strands of DNA on planets unexplored.