Examples

What WikiFix found in the NASA Solar System

science.nasa.gov · 732 pages scanned · 57 places where pages disagree · a sample of 10

Reference pages on the planets, moons and 158 Solar System missions: dense with numbers, units, approximations, tables and dated mission histories.

Science and facts

In what year was Pluto reclassified as a dwarf planet?

2006
Pluto was long considered our ninth planet, but the International Astronomical Union reclassified Pluto as a dwarf planet in 2006.
– Pluto
…Pluto was reclassified as a dwarf planet in 2006 by the International Astronomical Union.
– Pluto: Facts
…the IAU reclassified Pluto as a dwarf planet in 2006.
– Pluto & Dwarf Planets
2016
Pluto was considered the ninth major planet in our solar system until the definition of “planet” was changed by the International Astronomical Union (IAU) in 2016.
– Hypothetical Planet X
WikiFix finding: "In what year was Pluto reclassified as a dwarf planet?" – one page says "2006", one page says "2016". Options to pick an answer, ask the page owner, or ignore.

What material is the Europa Clipper electronics vault made of?

Aluminum-zinc alloy
Europa Clipper's electronics are enclosed in a vault with walls made of 1/3-inch thick (9.2-mm) sheets of aluminum-zinc alloy to protect the electronics from Jupiter’s intense radiation.
– Meet Europa Clipper
Titanium and aluminum
The vault walls – made of titanium and aluminum – will act as a radiation shield against most of the high-energy atomic particles…
– Europa Clipper Mission Overview

The vault is what shields the spacecraft's electronics from Jupiter's radiation.

WikiFix finding: "What material is the Europa Clipper electronics vault made of?" – one page says "Aluminum-zinc alloy", one page says "Titanium and aluminum". Options to pick an answer, ask the page owner, or ignore.

How long is Apophis relative to an NFL football field?

A little longer than one NFL football field
Apophis is little longer than an NFL football field, and it's about the height of the Eiffel Tower.
– Apophis Exploration
A little longer than three NFL football fields
Apophis is little longer than three NFL football fields and about the height of the Eiffel Tower.
– Apophis Facts

The Facts page gives its long axis as at least 1,480 feet (450 meters).

WikiFix finding: "How long is Apophis relative to an NFL football field?" – one page says "A little longer than one NFL football field", one page says "A little longer than three NFL football fields". Options to pick an answer, ask the page owner, or ignore.

What is the diameter of the Caloris basin on Mercury?

960 miles (1,550 kilometers)
Very large impact basins, including Caloris (960 miles or 1,550 kilometers in diameter)… were created by asteroid impacts on the planet's surface early in the solar system's history.
– Mercury: Facts
1,550 miles (2,500 kilometers)
Perhaps the most impressive surface feature was the Caloris basin, characterized by a set of concentric rings and ridges and about 1,550 miles (2,500 kilometers) in diameter.
– Mariner 10

On the Mercury page, 1,550 is the width in kilometers; the Mariner 10 page gives it in miles.

WikiFix finding: "What is the diameter of the Caloris basin on Mercury?" – one page says "960 miles (1,550 kilometers)", one page says "1,550 miles (2,500 kilometers)". Options to pick an answer, ask the page owner, or ignore.

What vehicle will deliver the VIPER rover to the Moon?

Astrobotic's Griffin lander and SpaceX's Falcon Heavy
The VIPER rover will be delivered to the Moon by Astrobotic's Griffin lander and SpaceX's Falcon Heavy launch vehicle as part of NASA's Commercial Lunar Payload Services, or CLPS, initiative.
– VIPER In Depth
A Blue Origin Blue Moon MK-1 lander
On September 19, 2025, NASA announced that VIPER and its instruments will be delivered to Mons Mouton by a Blue Origin Blue Moon MK-1 lander as part of task order CS-7.
– VIPER

The VIPER page dates the Blue Origin announcement to Sept. 19, 2025; the In Depth page still names Griffin.

WikiFix finding: "What vehicle will deliver the VIPER rover to the Moon?" – one page says "Astrobotic's Griffin lander and SpaceX's Falcon Heavy", one page says "A Blue Origin Blue Moon MK-1 lander". Options to pick an answer, ask the page owner, or ignore.

What is the width of the Chicxulub Crater?

180 miles (300 km)
It created the 180-mile-wide (300-kilometer-wide) Chicxulub Crater on the Yucatan Peninsula.
– Meteors and Meteorites: Facts
112 miles (180 km)
Another impact site, the Chicxulub Crater off the coast of the Yucatan Peninsula in Mexico, is buried by ocean sediments today. The crater is 112 miles wide (180 kilometers)…
– Asteroid Facts

The same two pages also give Arizona's Meteor Crater two widths: 0.6 miles on one, 0.75 on the other.

WikiFix finding: "What is the width of the Chicxulub Crater?" – one page says "180 miles (300 km)", one page says "112 miles (180 km)". Options to pick an answer, ask the page owner, or ignore.

What is the length of a day on Venus in Earth days?

About 247 Earth days
One day on Venus, a complete rotation, is about 247 Earth days long.
– VERITAS Overview
243 Earth days
For one thing, your “day” would be 243 Earth days long — longer even than a Venus year (one trip around the Sun), which takes only 225 Earth days.
– Venus: Facts

Both mean one full rotation of the planet.

WikiFix finding: "What is the length of a day on Venus in Earth days?" – one page says "About 247 Earth days", one page says "243 Earth days". Options to pick an answer, ask the page owner, or ignore.

How many spacecraft are in the Mars Relay Network?

Five
The Mars Relay Network — or MRN — refers to five Mars orbiters that, in addition to their own science observations, relay data from the Curiosity and Perseverance Mars rovers to Earth.
– Mars Odyssey
Four
The Mars Relay Network — or MRN — refers to four Mars orbiters that, in addition to their own science observations, relay data from the Curiosity and Perseverance Mars rovers to Earth.
– Mars Relay Network

The relay network page records that NASA ended MAVEN's mission on June 3, 2026.

WikiFix finding: "How many spacecraft are in the Mars Relay Network?" – one page says "Five", one page says "Four". Options to pick an answer, ask the page owner, or ignore.

What is the average orbital speed of the solar system around the Milky Way?

450,000 mph (720,000 kph)
Our solar system is moving with an average velocity of 450,000 miles per hour (720,000 kilometers per hour).
– Sun: Facts
515,000 mph (829,000 kph)
Our solar system orbits the center of the Milky Way galaxy at about 515,000 mph (829,000 kph).
– Solar System: Facts
WikiFix finding: "What is the average orbital speed of the solar system around the Milky Way?" – one page says "450,000 mph (720,000 kph)", one page says "515,000 mph (829,000 kph)". Options to pick an answer, ask the page owner, or ignore.

What is the Latin word for the Sun?

solis
Our planetary system is called “the solar system” because we use the word “solar” to describe things related to our star, after the Latin word for Sun, "solis."
– Solar System: Facts
sol
The Latin word for Sun is “sol,” which is the main adjective for all things Sun-related: solar.
– Sun: Facts
The Latin word for Sun is “sol,” which is the main adjective for all things Sun-related: solar.
– Sun

Sol is the word; solis means "of the Sun."

WikiFix finding: "What is the Latin word for the Sun?" – one page says "solis", one page says "sol". Options to pick an answer, ask the page owner, or ignore.

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