The 2000s brought an increasing number of widely seen alien encounters. This led to widespread knowledge of alien life. Following the public revelation of alien life in the late 2000s suicide rates doubled. (TV: Children of Earth: Day One) In the following decade humanity continued to encounter more aliens and other supernatural events.
There were several attempted alien invasions, alien related actions, unspecified events, space time events and individual actions of Earth, into the atmosphere or surface by a multitude of races and species throughout this period.
The first half of the decade saw several "false alarms" of new Doctor Who TV and film productions.
Meanwhile, BBC Books continued its prolific lines of Doctor Who novels.
Telos Publishing obtained the licence to produce original novellas based upon Doctor Who.
Bernice Summerfield, no longer the star of her own Virgin Publishing novels, was featured in numerous novels, short stories and audio dramas produced by Big Finish.
The BBC experimented with new media, producing several Doctor Who webcasts consisting of original stories featuring original series cast members. In 2003, a webcast entitled Scream of the Shalka introduced Richard E Grant as the voice of the Ninth Doctor.
In late 2003, BBC Wales announced that it will be producing a new live-action Doctor Who series, with Christopher Eccleston as the Ninth Doctor (the Richard Grant version of the character was abandoned). The series debuted in the spring of 2005 and almost instantly reinstated Doctor Who as a national institution.
BBC Books discontinued its line of Eighth Doctor and Past Doctor novels in favour of a new line of hardcover fiction featuring the Ninth (and later the Tenth) Doctor.
Big Finish Productions obtained the licence to publish the Short Trips book series.
In 2008, Tennant announced his departure from Doctor Who. Matt Smith, a largely unknown actor at the time, was cast as the Eleventh Doctor at the age of 26; he later debuted in 2010.
After four extremely successful seasons under the watch of Russell T Davies, Doctor Who went on partial hiatus for 2009, producing a number of specials in lieu of a full season. This was to allow Davies to hand over production duties to Steven Moffat, and also pave the way for Tennant's departure.