The Norse creation myth as told by Thomas Bulfinch in The Age of Fable:
[Odin, Vili, and Vé] slew the giant Ymir, and out of his body formed the earth, of his blood the seas, of his bones the mountains, of his hair the trees, of his skull the heavens, and of his brain clouds, charged with hail and snow. Of Ymir's eyebrows the gods formed Midgard (mid earth), destined to become the abode of man.
Odin then regulated the periods of day and night and the seasons by placing in the heavens the sun and moon, and appointing to them their respective courses. As soon as the sun began to shed its rays upon the earth, it caused the vegetable world to bud and sprout. Shortly after the gods had created the world they walked by the side of the sea, pleased with their new work, but found that it was still incomplete, for it was without human beings.
The myth as told by Snorri Sturluson in the Gylfaginning of the Prose Edda:
[…] Then said Ganglere: What was done then by the sons of Bor [Odin, Vili, and Vé], since you believe that they were gods? Answered Har: About that there is not a little to be said. They took the body of Ymer [Ymir], carried it into the midst of Ginungagap and made of him the earth. Of his blood they made the seas and lakes; of his flesh the earth was made, but of his bones the rocks; of his teeth and jaws, and of the bones that were broken, they made stones and pebbles. Jafnhar remarked: Of the blood that flowed from the wounds, and was free, they made the ocean; they fastened the earth together and around it they laid this ocean in a ring without, and it must seem to most men impossible to cross it. Thride added: They took his skull and made thereof the sky, and raised it over the earth with four sides. Under each corner they set a dwarf, and the four dwarfs were called Austre (East), Vestre (West), Nordre (North), Sudre (South). Then they took glowing sparks, that were loose and had been cast out from Muspelheim, and placed them in the midst of the boundless heaven, both above and below, to light up heaven and earth. They gave resting-places to all fires, and set some in heaven; some were made to go free under heaven, but they gave them a place and shaped their course. In old songs it is said that from that time days and years were reckoned. Thus in the Prophecy of the Vala:
The sun knew not
Where her hall she had;
The moon knew not
What might he had;
The stars knew not
Thus it was before these things were made. Then said Ganglere: Wonderful tidings are these I now hear; a wondrous great building is this, and deftly constructed. How was the earth fashioned? Made answer Har: The earth is round, and without it round about lies the deep ocean, and along the outer strand of that sea they gave lands for the giant races to dwell in; and against the attack of restless giants they built a burg within the sea and around the earth. For this purpose they used the giant Ymer’s eyebrows, and they called the burg Midgard. They also took his brains and cast them into the air, and made therefrom the clouds, as is here said:
Of Ymer’s flesh
The earth was made,
And of his sweat the seas;
Rocks of his bones,
Trees of his hair,
And the sky of his skull;
But of his eyebrows
The blithe powers
Made Midgard for the sons of men.
Of his brains
All the melancholy
Clouds were made.
Then said Ganglere: Much had been done, it seemed to me, when heaven and earth were made, when sun and moon were set in their places, and when days were marked out; but whence came the people who inhabit the world? Har answered as follows: As Bor’s sons went along the sea-strand, they found two trees. These trees they took up and made men of them. The first gave them spirit and life; the second endowed them with reason and power of motion; and the third gave them form, speech, hearing and eyesight. They gave them clothes and names; the man they called Ask, and the woman Embla. From them all mankind is descended, and a dwelling-place was given them under Midgard. In the next place, the sons of Bor made for themselves in the middle of the world a burg, which is called Asgard, and which we call Troy. There dwelt the gods and their race, and thence were wrought many tidings and adventures, both on earth and in the sky. In Asgard is a place called Hlidskjalf, and when Odin seated himself there in the high-seat, he saw over the whole world, and what every man was doing, and he knew all things that he saw. His wife hight Frigg, and she was the daughter of Fjorgvin, and from their offspring are descended the race that we call asas, who inhabited Asgard the old and the realms that lie about it, and all that race are known to be gods. And for this reason Odin is called Alfather, that he is the father of all gods and men, and of all things that were made by him and by his might. Jord (earth) was his daughter and his wife; with her he begat his first son, and that is Asa-Thor. To him was given force and strength, whereby he conquers all things quick.
Norfe, or Narfe, hight a giant, who dwelt in Jotunheim. He had a daughter by name Night. She was swarthy and dark like the race she belonged to. She was first married to a man who hight Naglfare. Their son was Aud. Afterward she was married to Annar. Jord hight their daughter. Her last husband was Delling (Daybreak), who was of asa-race. Their son was Day, who was light and fair after his father. Then took Alfather Night and her son Day, gave them two horses and two cars, and set them up in heaven to drive around the earth, each in twelve hours by turns. Night rides first on the horse which is called Hrimfaxe, and every morning he bedews the earth with the foam from his bit. The horse on which Day rides is called Skinfaxe, and with his mane he lights up all the sky and the earth.
Then said Ganglere: How does he steer the course of the sun and the moon? Answered Har: Mundilfare hight the man who had two children. They were so fair and beautiful that he called his son Moon, and his daughter, whom he gave in marriage to a man by name Glener, he called Sun. But the gods became wroth at this arrogance, took both the brother and the sister, set them up in heaven, and made Sun drive the horses that draw the car of the sun, which the gods had made to light up the world from sparks that flew out of Muspelheim. These horses hight Arvak and Alsvid. Under their withers the gods placed two wind-bags to cool them, but in some songs it is called ironcold (ísarnkol). Moon guides the course of the moon, and rules its waxing and waning. He took from the earth two children, who hight Bil and Hjuke, as they were going from the well called Byrger, and were carrying on their shoulders the bucket called Sager and the pole Simul. Their father’s name is Vidfin. These children always accompany Moon, as can be seen from the earth.
Then said Ganglere: Swift fares Sun, almost as if she were afraid, and she could make no more haste in her course if she feared her destroyer. Then answered Har: Nor is it wonderful that she speeds with all her might. Near is he who pursues her, and there is no escape for her but to run before him. Then asked Ganglere: Who causes her this toil? Answered Har: It is two wolves. The one hight Skol, he runs after her; she fears him and he will one day overtake her. The other hight Hate, Hrodvitner’s son; he bounds before her and wants to catch the moon, and so he will at last.