Fun Space Facts & Theories! (#3)

Content is accurate as of October 8th, 2025.
Remember to always do your own research, regardless of if you think its true, debated, untrue, or biased. And never use A.I for information nor for summaries/searching.

Number 1:
Asteroids in the asteroid belt are on average roughly ~600,000 miles or ~965,000km apart in the Asteroid Belt where the largest and most metal-rich asteroid is, Vesta, as well as the only dwarf planet (Ceres) in the Asteroid Belt is, which is also the closest dwarf planet to the Sun. Asteroids in the belt provide no reasonable harm to spacecraft due to said average distance and impacts are rare but do happen. (Source: Startalk, EarthSky, the YouTuber "Digital Hourglass'" song named "The Last Real Solar System Song")

Number 2:
Mercury has two immensely large craters. The Mercurian crater "Caloris Planitia" or "Caloris (Impact) Basin" is a 1,550-kilometer (963-mile) wide crater in diameter that is basically the equivalent of a vast plains biome that would stretch a bit less than halfway across the United States of America's width if on Earth and would be wider than "The Great Plains" in the USA from East to West. Caloris Planitia is named after the Latin word for "Heat" ("Calor") due to the Sun passing directly overhead of the crater on Mercury's closest approach to the Sun ("perigee"/"periapsis") on its orbit.
The second-largest crater on Mercury is "Rembrandt." Rembrandt Crater is a 716-kilometer (444-mile) wide crater in diameter and is named after the Dutch painter Rembrandt Harmenszoon van Rijn.
These craters however are not as near to the largest crater in the Solar System, which belongs to Mars' "Utopia" impact basin/crater at ~3,300 kilometers (~2,100 miles) in width. (Source: Wikipedia, NASA)

Number 3:
One of the first four asteroids to be found to have rings is a Centaur-class asteroid (orbits between 5 and 30 Astronomical Units) and this specific Centaur-class asteroid, "10199 Chariklo," orbits the Sun between Saturn and Uranus with an orbital period of ~62 years. It is the largest-known Centaur class at 250 kilometers or 160 miles in diameter.
The two icy sets of rings it carries are under study on how they're stable enough (due to the fact that they should be actively decaying and gone within a few million years) and unstable, however there could be potential (and currently unseen) small "shepherd moons" that could be stabilizing the two sets of rings of 10199 Chariklo. 10199 Chariklo is named after the Greek mythological nymph known as "Chariclo," who is the wife of Chiron in said mythology.

Number 4:
The music artist "Sleeping at Last" wrote and composed a song called "Saturn" which was also combined and released into an extended version of the song as a track for NASA's Cassini probe (amongst the ESA's "Huygens" Saturnian moon's "Titan" immobile lander.)
The track name in full is called "September 15th, 2017: Cassini - The Grand Finale" named after the NASA Jet Propulsion Laboratory's animation & designation of the Cassini probe's "Grand Finale" of disintegrating in the atmosphere of Saturn to avoid crash landing and forward-contaminating any moons of Saturn.
The "Grand Finale" track from Sleeping at Last is available on YouTube as a music video with mission radio transmissions sound clips, footage, and animations from NASA's JPL team and footage/photographs from the construction, launch, mission, and end of the Cassini-Huygens mission.