For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are ...

Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

Pluto isn't alone—it's part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn't achieved gravitational dominance in its region, the International Astronomical ...

NASA and ESA monitor asteroid 2024 YR4, which has a 1.2% chance of impacting Earth in 2032. Learn about Near-Earth Objects ...

NASA’s New Horizons mission changed our understanding of the outer solar system. After its famous Pluto flyby, it traveled ...

Uranus has the craziest tilt in your Solar System. Its tilt is about ninety-eight degrees. That means its north pole is ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

Beautiful photos of the six planets aligned in the night sky have emerged online. Mars, Jupiter, Uranus, Neptune, Venus and Saturn are all currently lined up in a row and will be visible in the night ...

Computer simulations in 2005 suggest that Charon could have formed as the result of a hypothetical violent collision, when a large Kuiper Belt object struck Pluto at a high speed, destroying itself ...

Some are narrow rings, as in the canonical picture of a ‘belt’ like our Solar System’s Edgeworth-Kuiper belt. But a larger number ... the belts’ vertical thickness – that unobservable objects as large ...

In addition, the objects in the rings would become smaller and smaller over time due to collisions. In the solar system, the Kuiper Belt is a ring-shaped structure consisting of various large ...