New Earth ( New Earth ) New Earth was a planet colonised by the New Earth Empire . Astronomical data . New Earth was located in the M87 galaxy , 50 , 000 light - year s away from the original Earth according to the Tenth Doctor . ( TV : " Gridlock " ) It was chosen for colonisation because it had had an orbit , size , atmosphere and terrain similar to Earth . New Earth had at least two large moons or planets in its vicinity , visible in the sky . Apple - grass grew on the planet . Landmarks of New Earth included New New York , which was actually the fifteenth New York , and the New New York Hospital , a hospital run by the Sisters of Plenitude . ( TV : " New Earth " ) There was also a New Atlantic and a New New Jersey somewhere on the planet , as well as Fire Island . ( TV : " Gridlock " ) History . After the destruction of Earth by the sun ' s expansion in the year 5 , 000 , 000 , 000 , one group of posthuman survivors , called the Arcadian s , became nostalgic towards Earth and created a " big revival movement " to preserve old Earth ' s ways . They recreated Earth on 28 , 000 Earth - like planets , including New Earth . ( TV : " New Earth " , PROSE : " The Book of the War " ) According to another account , this happened at least before 4 , 999 , 999 , 740 , when New Earth was the capital of the New Earth Empire . ( COMIC : " Agent Provocateur " ) Dorcas Lethebridge - Stuart was one of the founders of New Earth . ( PROSE : " Legacies " ) In 5 , 000 , 000 , 012 , Helen Clay started the Testimony Foundation , designed to save people from death . The Foundation would take people near death and implant their memories into glass bodies , allowing them to live as a glass person ( " TV " : " Twice Upon a Time " ) . In the year 5 , 000 , 000 , 023 , the Tenth Doctor and Rose Tyler visited the New New York Hospital on New Earth when the Doctor received a plea to go there on the psychic paper from the Face of Boe . After learning of the two ' s arrival , Cassandra O ' Brien . Δ17 overrode the hospital lift and made Rose descend to the hospital basement , where she had been hiding out since the destruction of Earth . There , Cassandra took over Rose ' s body using a psychograft . After the Doctor and Cassandra discovered that the Sisters of Plenitude at the hospital were growing humans to cure all viruses and diseases , Cassandra released some of these diseased humans onto the Sisters , and they in turn freed the others and began to attack the hospital . The Doctor , with the help of Cassandra in Rose ' s body , released a medicine to cure the humans . The remaining Sisters were arrested by the NNYPD and Cassandra passed into the body of her clone , Chip , before dying in the arms of her past self . ( TV : " New Earth " ) In 5 , 000 , 000 , 029 , a deadly , airbourne virus mutated from an addictive mood drug and spread across New Earth . The New New York Undercity was sealed off to protect the population , and New Earth was placed under a quarantine set to last one - hundred years . The virus subsequently wiped out the entire population of New Earth , save Novice Hame , the Face of Boe and those in the New New York undercity , within seven minutes flat , and eventually perished itself . In 5 , 000 , 000 , 053 , the Doctor and Martha Jones arrived in the undercity . Martha was kidnapped and trapped in the Motorway , an underground traffic route that was supposed to take people to the surface . Since above - ground was sealed off , the Motorway was essentially an endless circuit of traffic . The Doctor met the Face of Boe one last time . Boe died by using his life energy to open the roof of the motorway so that mankind could live on the surface once more . ( TV : " Gridlock " ) In that same year , Rose - the - Cat piloted the TARDIS to New Earth , where she caught a fish . ( COMIC : " A Rose by Any Other Name " ) Behind the scenes . New Earth appears in the online game " Doctor In A Dash " as the setting of Level 2 where , as with all levels , the Doctor ' s TARDIS ( the player ) races against a Dalek flying saucer , a Judoon rocket , and a Slitheen craft to find a Space - Time Manipulator . The cars of New New York act as obstacles to the ships . New Earth was the base location for a series of levels in " Worlds in Time " , an online multi - player game featuring the Eleventh Doctor . We at TARDIS wikia have qualified the game as a role - playing adventure due to the customisable nature of the playable companion , and thus we do not judge the game as valid .