Space Tourism:
Risks & Rewards
J. Duncan Law-Green
University of Leicester & National Space Centre
Cambridge Science Festival
13th March 2008
Suborbital & Orbital Flight
Edge of space defined as 100km (62 miles)
above Earth’s surface.
Orbital spaceflight
Altitude 150 miles+, speed 17,500mph+
Suborbital spaceflight
Max altitude 62 miles+, speed 2500mph+
Commercial air traffic
Altitude 8 miles, Speed 600mph
1968: Space Tourism in Film
1981: Promise Unfulfilled Launch of STS-1 ‘Columbia’
12 April 1981
“Space Island” Station Concept Using Shuttle External Tanks
2001: A Space Adventure
US company Space Adventures forms agreement with Russian Space Agency
for space tourism trips to International Space Station. Cost $20-30 million
Dennis Tito (US) Anousheh Ansari (Iran/US)
Soyuz TM-32, Apr 2001 Soyuz TMA-9, Sep 2006
Mark Shuttleworth Charles Simonyi
(S. Africa/UK) (Hungary/US)
Soyuz TM-34, Apr 2002 Soyuz TMA-10, Apr 2007
Greg Olsen (US) Richard Garriott (UK/US)
Soyuz TMA-7, Oct 2005 Soyuz TMA-13, Oct 2008?
The Ansari X-Prize & SpaceShipOne
Ansari X-Prize:
$10 million for first vehicle to carry 3
people (or 1+equivalent mass)
to 100km and back twice in two weeks.
Winner:
Scaled Composites SpaceShipOne
designed by Burt Rutan.
Programme cost $25-30 million
Technology licensed to Virgin Galactic
for passenger-carrying service.
Virgin Galactic: SpaceShipTwo
SpaceShipTwo/WhiteKnightTwo
6 passengers & 2 pilots to 100km+
Tickets $200,000 per seat
First test flights: summer 2008
First commercial flight: 2010?
Virgin Galactic: SpaceShipTwo
SpaceShipTwo under construction
at Scaled Composites, Mojave
Explosion at Mojave
26 July 2007: Nitrous oxide detonation during cold flow test
kills three Scaled Composites employees
Virgin Galactic: Spaceport America
Spaceport America
Upham, New Mexico,
Environmental approval: late 2008
Operational: late 2010
Space Tourism in Europe: EADS Astrium
Cabin interior of EADS Astrium vehicle
Vertical Takeoff/Vertical Landing: Blue Origin
US private spaceflight firm,
owned by Jeff Bezos
(founder of Amazon.com)
Spaceport on 260mi2 (670km2) of private land
in NW Texas
Prototype unmanned vehicle ‘Goddard’,
takes off and lands vertically (VTVL).
First flight: 13 Nov 2006 (300ft altitude)
At least 3 test flights to date.
Second test vehicle under construction.
Planned “New Shepard” manned suborbital
vehicle, 1 flight/week to 100km by 2010?
Space on a Shoestring: Armadillo Aerospace
US firm owned by John Carmack
(creator of Doom, Quake)
Small team working part-time,
limited budget (around $3M to date)
Demonstrated unmanned VTVL
reusable modular rockets
Working on one-man suborbital vehicle
Orbital Space Tourism
SpaceX Dragon SpaceDev DreamChaser
First generation of commercial manned orbital spacecraft.
First flights 2010-2012. Tickets $10-15 million per seat.
Hotels in Space?
Bigelow Aerospace habitats
Space station modules for rent
$8 million/month
First operational in 2012
Passenger Safety
Risk of fatal accident with current manned spacecraft: ~1 in 70
Aiming for at least 100x improvement with new suborbital spacecraft,
comparable to first generation of civil airliners in the 1930s.
Comprehensive health screening: vast majority of passengers will be ‘fit to fly’
FAA will require informed consent by passengers
Insurance is a challenge! Lloyds studying risks
Environmental Impact of Space Tourism
Carbon footprint
Toxic pollution
EPA
Noise pollution – sonic boom spaceport
assessment
Effect on wildlife
Debris hazard from in-flight FAA vehicle
accidents certification
Emissions in upper atmosphere
Benefits of Space Tourism
Personal experience – the ‘overview effect’
Variety of technical approaches (not “one true way”)
Incremental development (“build a little, test a little”)
Safer and more robust spacecraft
Much easier access for space science experiments
Cheaper, more routine access to space
MONEY TO FUND FUTURE DEVELOPMENT!
The Future
“Kankoh Maru”
Design study for VTVL SSTO by
Japan Rocket Society
50 passengers to orbit
“Skylon”
UK design for HTHL SSTO
using airbreathing rockets
60 passengers to orbit
Tickets “less than £50,000”
