NASA has created a 3D reconstruction of ancient water channels below the surface of Mars, revealing evidence of a catastrophic flood in the last 500 million years.
YouTube is reportedly planning to start selling subscriptions to some channels this year, and is in talks with video producers about the idea.
After four years' wrangling, Cablevision and AMC Networks have settled their legal case against Dish Network, and Dish has started broadcasting AMC's channels once again.
YouTube's jumping into original programming with both feet, with the launch of 100 new channels.
The channels on Mars widely supposed to have been created by flowing water have a completely different origin, says a Texas Tech University professor.
Google's reported to be planning major changes to YouTube to help it compete with broadcast and cable television services.