- You may be looking for the article on Jordan - the son of Rembrandt, brother of Aaron and a member of the Brotherhood of Guardians.
Jordann was an Echidna scientist, the the husband of Kayla-La and the great-great-grandfather of Edmund and Dimitri. His is primarily remembered for discovering the White Comet on a collision course with Echidnaopolis while charting the Alpha Quadrant.
Lifting Echidnaopolis into the sky
Roughly 600 years ago, he discovered the White Comet hurling towards Mobius while charting the Alpha Quadrant with his wife. His wife then created the idea to use the Chaos Emeralds to lift Echidnaopolis into the sky and avoid destruction. (StH: #34)
When Chaos Knuckles went back and time to change history, one of the things he did was destroy the White Comet. This was witnessed by both Jordann and Kayla-La, who were left astonished. Chaos Knuckles undid this change however when Echidnaopolis was destroyed from a massive earthquake. (StH: #101)