The document discusses several futuristic models for space travel, including solar sails that use radiation pressure to propel large mirrors, nuclear pulse propulsion that uses nuclear explosions in stages to accelerate to near light speed, and warp drive which uses gravitational effects to compress and expand space-time to allow for faster-than-light travel. Current research projects exploring these concepts are mentioned, with the implication that sci-fi technologies like warp drive may become reality within the next 50 years.

1. Future Space Travel

2. Futuristic Models:
• The General Theory of Relativity
suggests dimensions beyond time
and 3 dimensional space
• SOME FUTURE MODELS :
1. Warp Drive.
2. Nuclear pulse propulsion.
3. Solar sail.

3. Solar Sails
• Also called as “light sails” & “photon sails”.
• Uses the radiation pressure or the solar
pressure from stars to push large ultra thin
mirrors to high speed.

4. • Every second solar winds are emerging
from the stars(sun).

6. • It offers the possibility of low cost operations.
• Solar pressure affects almost every objects in
the universe.
• A typical spacecraft going to Mars, for example,
will be displaced by thousands of kilometers by
solar pressure.
• For using this energy effectively “solar sails”
theory is formed.

7. NUCLEAR PULSE PROPULSION
• Driven by series of nuclear explosions.

8. • Increases speed by stage by stage..
• Atlast it acquires the “Speed of light”..
• CURRENT PROJECTS :
• Project Orion :
-would use nuclear bombs as propellant,
possible with existing technology.
• Project Medusa :
-uses large sail to maximize energy
deposited by nuclear blast.
• Antimatter Catalyzed NPP :
-antimatter reduces the amount of material
needed for fission reaction.

9. Warp drive
• Uses gravitational effect to compress
the space-time in front of spacecraft
then expand the space-time behind
it.
• Relativity suggest it might be
possible..

10. • Outside observers would see the spacecraft
move “faster than light”.
• Inside observers would not feel any
acceleration
• The net effect is rather like surfing where you
are nearly stationary with respect to the wave,
but are traveling with the speed of the wave.

12. • Nasa currently working on such a theory
called “SPEEDS”.
• It could take a spacecraft to Alpha Centauri
in a mere two weeks eventhough the system is
4.3 light-years away..

13.  In the next 50 years, science fiction will
have become science fact.
 Space-Opens endless number of channels
for engineers.
 The final adventure for those seeking the
unknown.
 Perhaps you will be the one to discover
this type of technology..