"The data from the termination shock encounter will be a treasure trove for space physicists worldwide who are eager to ...

The close encounter was "a historic first of its type for a Japanese private, commercial lunar lander," according to ispace.

The annual event celebrates the discovery of the little planet with a big heart and other scientific advances at Flagstaff, ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating and sometimes ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...

NASA’s New Horizons mission changed our understanding of the outer solar system. After its famous Pluto flyby, it traveled even farther to meet an object called Arrokoth. This mysterious Kuiper Belt ...

Ultima Thule, at 4 billion miles (about 6.4 billion km) from the Sun and 1 billion miles (about 1.6 billion km) from Pluto, will be the most distant object ever directly explored, according to NASA.

The cost of cable continues to rise, but streaming services aren't getting much cheaper, either. Before you pony up even more cash to subscribe to yet another platform, stop and consider all of ...

6, 2006, Pluto and the others were formally recategorized ... Eris will reach perihelion in 2257. Plans for a flyby mission are being considered, with the most ideal launch opportunities in ...