The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

For lovers of newly identified space objects, July has indeed been an exciting month. Last week, astronomers described ...

The other object is 2014 NX 65, which is definitely not resonant with Uranus but might have an inner 3:2 resonance with ...

Astronomers have discovered "Ammonite," a mysterious object on the solar system’s edge whose unusual orbit challenges current ...

Harvard & Smithsonian has discovered a rare object far beyond Neptune, from a class known as trans-Neptunian objects, th ...

An international team of astrophysicists, led by Northwestern University and the University of Leicester in England, has ...