【Robert Zubrin】
 Mars is the next logical step
 In our space program
 It's the challenge that's been staring us in the face
 For the past 30 years
 It has water, it has carbon,
 It has a 24 hour day
 It has geothermal energy
 Mars is a place we can settle
 【Carl Sagan】
 There is a giant rift in its surface
 5,000 kilometers long
 There is a volcano as wide as Arizona
 【Zubrin】
 So there's the choice in life
 One either grows or one decays
 Grow or die
 I think we should grow
 【Sagan】
 Mars is a world of wonders
 【Brian Cox】
 It has canyons, river valleys,
 and giant ice sheets
 【Sagan】
 Mars is a world of wonders
 【Zubrin】
 It shouldn't be humans to Mars in 50 years
 It should be humans to Mars in 10
 We either muster the courage to go
 Or we risk the possibility of stagnation and decay
 We've got cosmic radiation
 Zero gravity
 Martian dust storms
 Back contamination
 But these are dragons that we can take on
 【Sagan】
 In our time we have sifted
 The sands of Mars
 Established a presence there
 And fulfilled a century of dreams
 【Cox】
 The Mars rovers have really
 Captured our imaginations
 They genuinely are explorers
 In the old-fashioned sense
 【Zubrin】
 If you put out a call
 For volunteers for the first crew to Mars
 They'd be lined up coast to coast
 【Sagan】
 Mars is a world of wonders
 【Brian Cox】
 It has canyons, river valleys,
 and giant ice sheets
 【Sagan】
 Mars is a world of wonders
 【Zubrin】
 It shouldn't be humans to Mars in 50 years
 It should be humans to Mars in 10
 【Cox】
 Mars is a dry frozen version of our home
 Covered in red dust and sand
 【Penelope Boston】
 At one time
 In the ancient past
 Mars was very similar
 To the conditions of early earth
 【Zubrin】
 There will always be people with new ideas
 On how humans should live together
 【Cox】
 We now have "eyes" and "ears" on the surface
 【Zubrin】
 What's left after you go is
 The good you've left behind
 You have to believe in hope
 You have to believe in the future
 There are more and more people coming around to the point of view that
 A positive future for humanity requires human expansion to space
 【Sagan】
 Mars is a world of wonders
 【Brian Cox】
 It has canyons, river valleys,
 and giant ice sheets
 【Sagan】
 Mars is a world of wonders
 【Zubrin】
 It shouldn't be humans to Mars in 50 years
 It should be humans to Mars in 10
 This is a world of wonders
 We're at a crossroads today
 We either muster the courage to go
 Or we risk the possibility of stagnation and decay