Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this year.

For the first time in history, we now have real, high-resolution images of Neptune that go beyond artist impressions and ...

The TNO, which are described as minor planets that orbit the sun at a greater distance than Neptune, were found on the edge ...

The object’s aphelion—the farthest point on the orbit from the sun—is more than 1,600 times that of Earth’s orbit,” Institute ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.