The Limitless Space Institute is reviewing the work of Interstellar grant recipients. It is feasible but very difficult to make a laser pushed sail reach 20% of the speed of light. The general parameters are for an array of lasers with 100 Gigawatts of power to push a 1 gram solar sail that has 4 …
Solar sails allow a low cost pathway to high speed and ubiquitous exploration of the outer solar system and interstellar space. A slingshot maneuver ~2-5 solar radii distant from the sun can propel light-weight cubesat class spacecraft to near-relativistic speeds. They can reach 0.1% of the speed of light (over 300 km/s or restated as …
Multilayer Dielectric Ceramic Solar Sails for 100X Greater Speed for Space Travel
Breakthrough Starship wants to use a 100 Gigawatt laser array to push an ultralight 4 meter X 4 meter nanocrystal solar sail. StarChip is the name used by Breakthrough Initiatives for a very small, centimeter-sized, gram-scale, interstellar spacecraft envisioned for the Breakthrough Starshot program. The light sail is envisioned to be no larger than 4 …
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 low mass spacecraft and dive to extreme proximity to the sun (just 2-5 solar radii). …
Philip Lubin has led a team at UCSB to create laser arrays for propulsion and asteroid deflection. He has received NASA and Starshot funding. There have 100 students in his programs. They have created hardware components and performed various experiments. The DE-STAR (Directed Energy System for Targeting of Asteroids and ExploRation) has several sizes. DE-STAR-1 …
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 then we will need to square the energy increase. If we want to go ten …
1. Universe Today – LightSail 2 is Sending Home New Pictures of Earth LightSail 2, the brainchild of The Planetary Society, has gifted us two new gorgeous images of Earth. The small spacecraft is currently in orbit at about 720 km, and the LightSail 2 mission team is putting it through its paces in preparation …
In 2018 the Parker Solar Probe launched and plans to approach the Sun to within 8.5 solar radii (4 million miles) of its surface. This is seven times closer than any previous mission. Researchers think a new coating could allow spacecraft to get close as one solar radii (430,000 miles) from the Sun’s surface. This …
The conventional means of collecting and redirecting solar sail light uses a metal-coated polyimide film but this is sub-optimal and unstable because the very large and very thin sail must be rapidly slewed away from the sun line for navigational purposes. Stability rigging and attitude control devices add mass to the sailcraft, thereby reducing the …
Arxiv – Breakthrough Starshot is an initiative to prove ultra-fast light-driven nanocrafts, and lay the foundations for a first launch to Alpha Centauri within the next generation. Along the way, the project could generate important supplementary benefits to solar system exploration. A number of hard engineering challenges remain to be solved before these missions can …
