A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

Scientists say studying objects like Ammonite, despite their immense distance, offers valuable insight into the solar ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

A pellet of plutonium 238, illuminated by the glow of its own radioactivity. NASA and other space agencies use this material in radioisotope power sources for interplanetary missions to the solar ...

The orbit of 2023 KQ 14 (in red) compared to the orbits of the other three sednoids (in white). 2023 KQ 14 was discovered near its perihelion at a distance of 71 astronomical units (71 times the ...

The outer reaches of our Solar System continue to reveal a complex dynamical environment where the interplay of gravitational forces shapes the orbits of a myriad of distant bodies. Research in this ...

In June 1983, newspaper headlines declared that NASA’s Pioneer 10 spacecraft had left the solar system, crossing beyond the orbit of Neptune. It was the common view of the time: All of the solar ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

In 2015, a NASA spacecraft snapped spectacular photographs of Pluto, forever changing humanity’s view of that world. On Tuesday that same probe, New Horizons, will provide a closeup of the farthest ...