The trans-Neptunian object Arrokoth, also known as Ultima Thule, which NASA's space probe New Horizons passed on New Year's Day 2019, may have changed its shape significantly in the first 100 million years since its formation. ...
Collaborative observations with NASA's New Horizons mission have been ongoing at the Subaru Telescope since May 2020. Hyper Suprime-Cam (HSC), the wide field camera mounted on the prime focus of the Subaru Telescope, is used ...
Five years ago today, NASA's New Horizons spacecraft made history. After a voyage of nearly 10 years and more than 3 billion miles, the intrepid piano-sized probe flew within 7,800 miles of Pluto. For the first time ever, ...
Astronomers this month released the largest collection of sharp, detailed images of debris disks around young stars, showcasing the great variety of shapes and sizes of stellar systems during their prime planet-forming years. ...
The accretion of new material during Pluto's formation may have generated enough heat to create a liquid ocean that has persisted beneath an icy crust to the present day, despite the dwarf planet's orbit far from the sun ...
Is it time to head back to Neptune and its moon Triton? It might be. After all, we have some unfinished business there.
Far beyond the orbits of the planets are the hazy outlines of the heliosphere, the magnetic bubble in space that we call home. This flexible cosmic bubble stretches and shrinks in response to the sun's gasps and sighs.
For the first time, a spacecraft has sent back pictures of the sky from so far away that some stars appear to be in different positions than we'd see from Earth.
Planet Nine is a theoretical, undiscovered giant planet in the mysterious far reaches of our solar system.
There are eight classical planets in our solar system, from speedy Mercury to distant Neptune. There are also numerous dwarf planets, such as Pluto and Ceres. While we continue to find more dwarf planets, there are some hints ...
