A perfect example is when Hal Jordan was brought to the future to bring down a tyrannical government in space. It's not something Green Lanterns do often, and it's not easy because it take enormous amounts of willpower, but it can be done. That's right, a Green Lantern power ring can be used to travel through time. The Green Lantern Corps doesn't just have power over space, but also time. Sadly, Sinestro destroyed the new world, killing all 16 billion all over again, and this time, Kilowog couldn't save them. Later, Kilowog was able to find a new planet where he released them, alive again. During the 1985 crossover 'Crisis on Infinite Earths,' Bolovax Vik was destroyed, which would have meant Kilowog's race was exterminated, but he quickly captured the souls of all of his people inside his ring. In 'Green Lantern Corps' #218 (1987, written by Steve Englehart and art by Bill Willingham), Kilowog revealed the fate of that world. Kilowog came from the planet Bolovax Vik, home to 16 billion people, making it one of the most overpopulated planets in the universe. The best example of that came from the Green Lantern Kilowog, when he used his ring to preserve the population of his entire planet. It's actually a powerful object with dimensions that go beyond time and space, and abilities that are almost limitless. The Green Lantern power ring isn't just a hunk of metal. The modern Lanterns, whose rings are based more on science than magic, have explained that their rings' light merely pushes the molecules of a given surface or material apart, bringing them back together after the Lantern is finished passing through. When Scott first gained the power of the ring, one of his first tricks was to pass through 'the fourth dimension,' and walk through a wall to get some crooks by surprise. The Green Lantern Alan Scott actually did it first, way back in 1940's 'All-American Comics' #16, written by Bill Finger with art by Martin Nodell. If you're a Green Lantern fan, you may be wondering when you'd ever see him pass through objects. That also means any attacks like bullets will pass right through, but Green Lanterns usually prefer to make shields instead. Physical barriers are no match for the ring when it uses its power to turn the wearer intangible, able to literally walk through walls. Other superheroes like Martian Manhunter and the X-Men's Kitty Pryde have the power to pass through objects, but many readers don't know Green Lantern has the same power, to a degree.

Skyrim rings of power