Stephen Hawking says humans need to leave Earth within the next 100 years or face extinction

Um, Elon Musk might want to hurry up and get us to Mars with his SpaceX program already.

Why, you ask? Stephen Hawking, a world-renowned physicist, says it's almost time for humans to bid farewell to their home planet.

In the upcoming BBC documentary Expedition New Earth, Hawking suggests humans have 100 years to colonize elsewhere or prepare for the extinction of our species.

Yikes.

Stephen Hawking through the years

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Stephen Hawking through the years
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Stephen Hawking through the years
PRINCETON, NJ - OCTOBER 10: Cosmologist Stephen Hawking on October 10, 1979 in Princeton, New Jersey. (Photo by Santi Visalli/Getty Images)
Stephen Hawking (born in 1942), British mathematician and scientist, 1989. (Photo by Jean-Regis Rouston/Roger Viollet/Getty Images)
Professor Stephen Hawking poses for a photograph in his office at the University of Cambridge in Cambridge, U.K, in April 1991. Hawking has written countless scientific papers as well as books, receiving 12 honorary degrees and becoming Cambridge's Lucasian Professor of Mathematics, a post held by Sir Isaac Newton over 300 years earlier. (Photo by Bryn Colton/Getty Images)
SF.Hawking.1.bv.2Â5/PASADENA ÂÂ Theoretical physicist Stephen Hawking in his Cal Tech office. (Photo by Brian Vander Brug/Los Angeles Times via Getty Images)
(GERMANY OUT) - COL*08.01.1942-Physiker, Mathematiker, Grossbritannien- Porträt (Photo by LS-PRESS/ullstein bild via Getty Images)
LONDON - DECEMBER 16: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Scientist Stephen Hawking and wife Elaine Mason arrive at the European Premiere of 'Lemony Snicket's A Series Of Unfortunate Events' at the Empire Leicester Square on December 16, 2004 in London. (Photo by Dave Benett/Getty Images)
OVIEDO, SPAIN: British astrophysicist Stephen Hawking gives his conference to open the XXV Prince of Asturias Awards Anniversary event in Oviedo, Northern Spain, 12April 2005. Stephen Hawking won the Prince of Asturias Award for Concord in 1989. AFP PHOTO / Miguel RIOPA (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)
FRANKFURT, GERMANY - OCTOBER 19: Professor Stephen Hawking (L) and his wife Elaine Mason attend the international bookfair on October 19, 2005 in Frankfurt, Germany. South Korea is the guest of honour at the 57th annual Frankfurt Book Fair where 270.000 people are expected to visit the world's most important book fair, and 7000 exhibitors from 100 countries are present. (Photo by Ralph Orlowski/Getty Images)
FRANKFURT/MAIN, Germany: British physicist Stephen Hawking visits his German publisher Rowohlt's stand at the Frankfurt Book Fair 19 October 2005. The Frankfurt book fair opened its doors for the 57th time with the focus on authors from the Korean peninsula, but the presence of some 60 writers from the South and none from the North spoke as much of politics as literature. AFP PHOTO DDP/THOMAS LOHNES GERMANY OUT (Photo credit should read THOMAS LOHNES/AFP/Getty Images)
BEIJING, CHINA - JUNE 18: (CHINA OUT) Cosmologist Stephen Hawking visits the Temple of Heaven on June 18, 2006, in Beijing, China. Hawking has arrived in Beijing prior to his lecture at the Great Hall of the People today where he will discuss the origins of the universe at the Strings 2006 International Conference, hosted by the Chinese Academy of Sciences Institute of Theoretical Physics. The conference runs from June 19 ?24 at the Beijing Friendship Hotel. (Photo by ChinaFotoPress/Getty Images)
BEIJING - JUNE 19: (CHINA OUT) British scientist Stephen Hawking, delivers a lecture entitled 'The Origin of the Universe' at the Great Hall of the People June 19, 2006 in Beijing, China. British scientist Stephen Hawking is also visiting Beijing to attend the conference on the riddle of string theory which, if solved, could help unlock the mysteries of black holes and the creation of the universe, according to reports. (Photo by China Photos/Getty Images)
BEIJING - JUNE 21: British scientist Stephen Hawking attends a conference during the 2006 International Conference on String Theory on June 21, 2006 in Beijing, China. Hawking is visiting Beijing to attend the conference on the riddle of string theory which, if solved, could help unlock the mysteries of black holes and the creation of the universe, according to reports. (Photo by Cancan Chu/Getty Images)
JERUSALEM, -: British scientist Stephen Hawking is helped to turn his head as he arrives 10 December 2006 at the Israeli premier's offices to meet with Ehud Olmert in Jerusalem. Hawking is in Jerusalem for a lecture at the Bloomfield Museum of Science. AFP PHOTO/Yoav LEMMER (Photo credit should read YOAV LEMMER/AFP/Getty Images)
LONDON - JANUARY 17: Professor Stephen Hawking delivers his speech at the release of the 'Bulletin of the Atomic Scientists' on January 17, 2007 in London, Ebgland. A group of scientists assessing the dangers posed to civilisation have moved the Doomsday Clock forward two minutes closer to midnight as an indication and warning of the threats of nuclear war and climate change. (Photo by Bruno Vincent/Getty Images)
KENNEDY SPACE CENTER, UNITED STATES: British cosmologist Stephen Hawking(L) has his communication device adjusted by an aide at a pre-flight press conference 26 April 2007 at Kennedy Space Center, FLorida. Hawking, who has spent his career pondering the nature of gravity from a wheelchair, is set to experience weightlessness during a 'vomit comet' flight in Florida Thursday. The idea is to give 'the world's expert on gravity the opportunity to experience zero gravity' said Peter Diamandis the chief executive of the Zero Gravity Corporation. Hawking, 65, the British author of the blockbuster 'A Brief History of Time,' will be surrounded by a medical team on the padded plane as it flies a roller-coaster trajectory to produce periods of weightlessness. AFP PHOTO / ROBERT SULLIVAN (Photo credit should read ROBERT SULLIVAN/AFP/Getty Images)
KENNEDY SPACE CENTER, UNITED STATES: British cosmologist Stephen Hawking passes well wishers before boarding a plane 26 April 2007 at Kennedy Space Center, Florida. Hawking, who has spent his career pondering the nature of gravity from a wheelchair, is set to experience weightlessness during a 'vomit comet' flight in Florida Thursday. The idea is to give 'the world's expert on gravity the opportunity to experience zero gravity' said Peter Diamandis the chief executive of the Zero Gravity Corporation. Hawking, 65, the British author of the blockbuster 'A Brief History of Time,' will be surrounded by a medical team on the padded plane as it flies a roller-coaster trajectory to produce periods of weightlessness. AFP PHOTO / ROBERT SULLIVAN (Photo credit should read ROBERT SULLIVAN/AFP/Getty Images)
Professor Stephen Hawking gives a lecture entitled 'Why We Should Go Into Space' during the 50 Years of NASA lecture series at George Washington University in Washington, DC, April 21, 2008. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
South Africa former President Nelson Mandela (R) meets with British scientist Professor Stephen Hawking (L) in Johannesburg on May 15, 2008. Hawking, who has devoted his career to finding the origins of the universe, is in the country to begin a search for Africa?s answer to Einstein. Some of the world?s leading high-tech entrepreneurs and scientists have backed a ?75m plan to create Africa?s first postgraduate centres for advanced math and physics, after the British government declined to provide funding. AFP Photo/Denis Farrell / POOL (Photo credit should read DENIS FARRELL/AFP/Getty Images)
(FILES) British scientist Stephen Hawking attends the 2008 Cambridge Honnorary Degrees 2008's procession on June 23, 2008 at Cambridge University in east England. Renowned British astrophysicist Stephen Hawking has bet 100 dollars (70 euros) that a mega-experiment this week will not find an elusive particle seen as a holy grail of cosmic science, he said Tuesday September 9, 2008. In the most complex scientific experiment ever undertaken, the Large Hadron Collider (LHC) will be switched on Wednesday, accelerating sub-atomic particles to nearly the speed of light before smashing them together. AFP PHOTO/SHAUN CURRY/FILES (Photo credit should read SHAUN CURRY/AFP/Getty Images)
WASHINGTON - AUGUST 12: U.S. President Barack Obama (R) presents the Medal of Freedom to physicist Stephen Hawking during a ceremony in the East Room of the White House August 12, 2009 in Washington, DC. Obama presented the medal, the highest civilian honor in the United States, to 16 recipients during the ceremony. (Photo by Chip Somodevilla/Getty Images)
US President Barack Obama presents the Presidential Medal of Freedom to British theoretical physicist Stephen Hawking during a ceremony in the East Room at the White House on August 12, 2009. Obama awarded 16 individuals the 2009 Presidential Medal of Freedom, the highest civilian honor. AFP PHOTO/Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
PASADENA, CA - JANUARY 14: Scientist Stephen Hawking of 'Into The Universe With Stephen Hawking' speaks via satellite during the Science Channel portion of the 2010 Television Critics Association Press Tour at the Langham Hotel on January 14, 2010 in Pasadena, California. (Photo by Frederick M. Brown/Getty Images)
NEW YORK - JUNE 02: Physicist Stephen Hawking onstage during the 2010 World Science Festival Opening Night Gala at Alice Tully Hall, Lincoln Center on June 2, 2010 in New York City. (Photo by Jemal Countess/Getty Images)
Physicist Stephen Hawking attends the 2010 World Science Festival Opening Night Gala at Alice Tully Hall, Lincoln Center on June 2, 2010 in New York City.
LOS ANGELES - MARCH 9: 'The Hawking Excitation' -- When Wolowitz gets to work with Stephen Hawking (left), Sheldon (Jim Parsons, right) is willing to do anything to meet his hero, on THE BIG BANG THEORY, Thursday, April 5 (8:00-8:31 PM, ET/PT) on the CBS Television Network. (Photo by Sonja Flemming/CBS via Getty Images)
LONDON, ENGLAND - AUGUST 29: Professor Stephen Hawking speaks during the Opening Ceremony of the London 2012 Paralympics at the Olympic Stadium on August 29, 2012 in London, England. (Photo by Dan Kitwood/Getty Images)
Theoretical physicist Stephen Hawking poses for a picture ahead of a gala screening of the documentary 'Hawking', a film about the scientist's life, at the opening night of the Cambridge Film Festival in Cambridge, eastern England on September 19, 2013. Hawking tells the extraordinary tale of how he overcame severe disability to become the most famous living scientist in a new documentary film premiered in Britain. AFP PHOTO / ANDREW COWIE (Photo credit should read ANDREW COWIE/AFP/Getty Images)
British actor Eddie Redmayne (R) pose with British scientist Stephen Hawking (L) at the UK premiere of the film 'The Theory of Everything' in London on December 9, 2014. The film is based on the memoir Travelling to Infinity: My Life with Stephen, by Jane Hawking, and stars Eddie Redmayne protraying the renowned astrophysicist Stephen Hawking. AFP PHOTO / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
LONDON, UNITED KINGDOM - DECEMBER 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Professor Stephen Hawking attends the UK Premiere of 'The Theory Of Everything' at Odeon Leicester Square on December 9, 2014 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, ENGLAND - FEBRUARY 08: Lucy Hawking and Stephen Hawking attend the EE British Academy Film Awards at The Royal Opera House on February 8, 2015 in London, England. (Photo by Samir Hussein/WireImage)
LONDON, ENGLAND - FEBRUARY 18: The world's best know scientist Professor Stephen Hawking takes VisitLondon.com's Official Guest of Honour Adaeze Uyanwah on a personal guided tour of his favourite places in the city's famous Science Museum on February 18, 2015 in London, England. On the tour Professor Hawking said he was pleased to lend his synthesised 'voice' to actor Eddie Redmayne for his Oscar-nominated performance in The Theory of Everything but added ' unfortunatley Eddie did not inherit my good looks.' (Photo by Tristan Fewings/Getty Images for London & Partners)
LONDON, ENGLAND - MARCH 30: (SUN NEWSPAPER OUT. MANDATORY CREDIT PHOTO BY DAVE J. HOGAN GETTY IMAGES REQUIRED) Stephen Hawking attends 'Interstellar Live' at Royal Albert Hall on March 30, 2015 in London, England. (Photo by Dave J Hogan/Getty Images)
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A hundred years is a lot sooner than Hawking's previous predictions. In November, he gave a similar warning — but said we had a comparatively lengthy 1,000 years to find a new spot to carry on the future of humankind:

"Although the chance of disaster to planet Earth in a given year may be quite low, it adds up over time, and becomes a near certainty in the next 1,000 or 10,000 years ... By that time, we should have spread out into space and to other stars, so a disaster on Earth would not mean the end of the human race."

So where are we going to go? Thankfully, Musk has said humans should make it to Mars in the near future.

"If things go according to plan, we should be able to launch people probably in 2024 with arrival in 2025," he said, according to Time.

RELATED: Surface of Mars

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Surface of Mars
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Surface of Mars
Portions of the Martian surface shot by NASA's Mars Reconnaissance Orbiter show many channels from 1 meter to 10 meters wide on a scarp in the Hellas impact basin, in this photograph taken January 14, 2011 and released by NASA March 9, 2011. Scientists have found the first evidence that briny water may flow on the surface of Mars during the planet's summer months, a paper published on Monday showed. Researchers found telltale fingerprints of salts that form only in the presence of water in narrow channels cut into cliff walls throughout the planet's equatorial region. REUTERS/NASA/JPL-Caltech/Univ. of Arizona/Handout FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
Dark, narrow, 100 meter-long streaks on Mars inferred to have been formed by contemporary flowing water are seen in an image produced by NASA, the Jet Propulsion Laboratory (JPL) and the University of Arizona. Scientists have found the first evidence that briny water may flow on the surface of Mars during the planet's summer months, a paper published on Monday showed. NASA/JPL/University of Arizona/Handout THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS
Dark narrow streaks called recurring slope lineae emanating out of the walls of Garni crater on Mars are seen in an image produced by NASA, Jet Propulsion Laboratory (JPL) and the University of Arizona. Scientists have found the first evidence that briny water may flow on the surface of Mars during the planet's summer months, a paper published on Monday showed. NASA/JPL/University of Arizona/Handout THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS
A circular depression on the surface of Mars is pictured in his image acquired on Jan. 5, 2015 by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter (MRO), provided by NASA. The spacecraft has been orbiting Mars since March 2006 and completed its 40,000th orbit around Mars on Feb. 7, 2015. REUTERS/NASA/JPL-Caltech/University of Arizona/Handout
NASA's Mars rover Curiosity's hole drilled into a rock target, "Cumberland," on Mars on May 19, 2013 is shown in this NASA photo. NASA?s Mars rover Curiosity has found carbon-containing compounds in samples drilled out of an ancient rock, the first definitive detection of organics on the surface of Earth?s neighbor planet, scientists said on Tuesday. REUTERS/NASA/Handout (OUTER SPACE - Tags: SCIENCE TECHNOLOGY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
NASA's Mars Exploration Rover Opportunity is shown in this handout photo released to Reuters July 29, 2014. Opportunity has set a new off-Earth, off-road distance record, logging just over 25 miles (40 km) on the surface of the Red Planet to surpass the old benchmark set in 1973 by a Russian probe on the moon. REUTERS/NASA/JPL-Caltech/Cornell Univ./Arizona State University/Handout (UNITED STATES - Tags: SCIENCE TECHNOLOGY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
This image from the right Mast Camera (Mastcam) of NASA's Curiosity Mars rover shows rough spherical features on the surface of the planet in an area called 'Yellowknife Bay' in this NASA handout released January 15, 2013. These features are interpreted as concretions, implying they formed in water that percolated through pores in the sediment. Spherical concretions have previously been discovered in other rocks on Mars. REUTERS/NASA/JPL-Caltech/MSSS/Handout (OUTERSPACE - Tags: SCIENCE TECHNOLOGY ENVIRONMENT) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
An image from the Mast Camera (Mastcam) on NASA's Mars rover Curiosity shows the surface of the planet with inclined layering known as cross-bedding in an outcrop called "Shaler" on a scale of a few tenths of a meter, or decimeters (1 decimeter is nearly 4 inches) in this NASA handout released January 15, 2013. REUTERS/NASA/JPL-Caltech/MSSS/Handout (OUTERSPACE - Tags: SCIENCE TECHNOLOGY ENVIRONMENT) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
The surface of the planet Mars inside Gale's Crater is shown as NASA's Mars rover Curiosity drives toward a flat rock with pale veins that may hold clues to a wet history on the planet in this NASA handout photo released January 15, 2013. If the rock meets rover engineers' approval when Curiosity rolls up to it in coming days, it will become the first to be drilled for a sample during the Mars Science Laboratory mission. REUTERS/NASA/Handout (OUTERSPACE - Tags: SCIENCE TECHNOLOGY ENVIRONMENT) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
NASA's Mars Science Laboratory rover Curiosity appears as a bluish dot near the lower right corner of this enhanced-color view from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter taken on June 27, 2013 and released on July 24, 2013. The rover's tracks are visible extending from the landing site, "Bradbury Landing," in the left half of the scene. Two bright, relatively blue spots surrounded by darker patches are where the Mars Science Laboratory spacecraft's landing jets cleared away reddish surface dust at the landing site. REUTERS/NASA/JPL-Caltech/Univ. of Arizona/Handout via Reuters (OUTER SPACE - Tags: ENVIRONMENT SCIENCE TECHNOLOGY) ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
A rock outcrop called Link pops out from a Martian surface in this NASA handout image taken by the 100-millimeter Mast Camera on NASA's Curiosity Mars rover September 2, 2012 and released September 27, 2012. Rounded gravel fragments, or clasts, up to a couple inches (few centimeters) in size are in a matrix of white material. The outcrop characteristics are consistent with a sedimentary conglomerate, or a rock that was formed by the deposition of water and is composed of many smaller rounded rocks cemented together. Scientists enhanced the color in this version to show the Martian scene as it would appear under the lighting conditions we have on Earth, which helps in analyzing the terrain. REUTERS/NASA/JPL-Caltech/MSSS/Handout (UNITED STATES - Tags: SCIENCE TECHNOLOGY) THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS
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The upcoming documentary series with Hawking is a reboot of BBC's Tomorrow's World. Per Tony Hall, director-general of the BBC:

"We've come together behind a simple, and very bold ambition — to equip all of us with the knowledge and understanding we need to make sense of our lives and the future ... Whether it's the rise of robotics or the demise of antibiotics, traveling to Mars or the arrival of 3D printed food, science is changing the world at an extraordinary pace."

Let's just hope science changes the world fast enough for our species to escape it.

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