laser
Extreme metamaterial solar sails as proposed here have the potential to shift the paradigm of space exploration enabling numerous low cost and high-speed missions to be launched anytime and anywhere. Such sails could gain accelerations over 60AU/yr when coupled to …
Power is everything is a famous quote from the movie Apollo 13. A similar statement is made by Marc Millis about interstellar travel. Marc is a thought leader in interstellar travel. Marc says that for whatever speed increase we want …
Femtosecond Projection Two-photon Lithography (FP-TPL) printing technology increases the printing speed by 1,000 – 10,000 times, and reduces the cost by 98%. It controls the laser spectrum via temporal focusing, the laser 3D printing process is performed in a parallel …
This is an update of the system under development by John Brophy and his team and it will use a kilometer-scale, multi-hundred-megawatt phased-array laser to beam power to a vehicle that converts it to electrical power for a multi-megawatt electric …
There is a NASA NIAC study to improved laser pushed sails with advanced diffracted solar sail. Advanced diffractive films may afford advantages over passive reflective surfaces for a variety space missions that use solar or laser in-space propulsion. Three cases …
Nature materials -Materials challenges for the Starshot lightsail A solar sail able to be pushed by lasers to 20% of light speed would need to be about 10 square meters but weigh less than a gram. The sail will have …
Nature materials -Materials challenges for the Starshot lightsail A solar sail able to be pushed by lasers to 20% of light speed would need to be about 10 square meters but weigh less than a gram. The sail will have …
Les Johnson of the NASA Marshall Space Center provides a 37-page presentation on solar sails covering the technical details, past projects and future projects. Near-term work is with various cubesats and solar sails. Near Earth Asteroid Scout The Near Earth …
A new process called Laser Wire Direct Closeout (LWDC) was developed and advanced at NASA to build a less-expensive rocket nozzle in significantly less time. LWDC is a different process than most 3-D printing technologies, which are powder-based and fabricated …