The articles author is unclear on the definition of “lopsided” as merely spinning axially in a different direction than other planets in the same star system does not qualify as being “lopsided.” For Uranus to be lopsided, it would need to have a shape distinctly and significantly different from one side to the other, so much that one side was lower than the other. That is not the case. Like most solar planets, Uranus is an oblate spheroid. . . And is essentially the same on all opposite sides.
So much for scientific accuracy.
The giant impact from an Earth-size rock that knocked Uranus sideways may have also helped create the tilted planet's moons, a new study finds.
The poles along which Earth spins are mostly pointed the same way as the poles of the sun and nearly all the other planets of the solar system.
However, Uranus is an oddball in that its axis of spin is tilted by a whopping 98 degrees (relative to the plane of the solar system), meaning it essentially spins on its side.
No other planet in the solar system is tilted as much Jupiter is tilted by about 3 degrees, for example, and Earth by about 23 degrees.
Now, researchers in Japan suggest a giant cosmic impact may not only have knocked Uranus on its side, but also created most of the planet's moons.
[Photos of Uranus, a Tilted Planet]
https://www.space.com/39123-crash-that-tilted-uranus-made-moons.html