Amazon unveiled new details of its HQ2 project, which will include 22-story buildings in Arlington, Virginia, inspired by the shape of a double helix.

The proposed height for Amazon's HQ2 Helix Building is about 13 feet taller than FAA regulations allow that close to Washington Reagan National Airport.

Little after the conclusion to season two, Syfy has announced that Helix is not returning. The season two finale - which aired on April 10 - will now serve as permanent closure to the science ...