The universe was created in a Big Bang 13.7 billion years ago, is still expanding today, and billions of years from now it might recollapse by its own gravity with a Big Crunch (or continue expanding forever, Big Chill). The Quran says that on the first day of creation, God made the heavens and the Earth meshed together, tight and compact (Big Bang), continues to expand it into the universe we know today and at the last day God will recompress it into its original state (Big Crunch). About the first day (Big Bang), Allah says:
[Quran 21.30] Do not those who disbelieve see that the heavens and the Earth were meshed together then We ripped them apart? And then We made of water everything living? Would they still not believe?
In the Quran the Heavens expanded from a single point.
Cosmologists just confirmed the existence of "Dark Energy", a mysterious repulsive force that acts in opposite to gravity. As the distance increases, the attractive gravitational force decreases but this mysterious repulsive force increases. This repulsive force is pushing galaxies apart; the greater the distance the greater the repulsion. Scientists today do not know what this "Dark Energy" is, but they know that it is causing the entire universe to expand at an increasing rate.
[Quran 51.47] And the heaven, We built it with craftsmanship and We are still expanding.