The makers of the Bafta-winning documentary want to preserve the underwater ecosystem it features.
Drones capable of 90mph are being raced in a league which supporters say is close to the big time.
Thousands of viewers contacted the BBC to say they felt the amount of coverage was excessive.
The Friends cast reunited after almost 17 years last week. Here's all we know about the one-off show.
The US tech giant is buying artificial intelligence firm Nuance, best known for developing Apple's Siri
Iran blames Israel, but was this a cyber attack or physical act of sabotage?
The man allegedly wanted to bomb an Amazon data centre to wipe out 70% of the online world.
Smith says he's "compelled" to move filming elsewhere because of Georgia's "regressive" voting laws.
Ofcom says the station will not be penalised after a presenter charged musicians £200 to play songs.
The tool is being tested by Google's Android operating system, reports suggest.