Free Republic

Before man can cross the vast distances of space, the designs of spacecraft’s sails will be key – striking a delicate balance between mass, strength in addition to reflectivity. Working with NASA, California Institute of Technology (Caltech) scientists have created the fresh material out of silicon in addition to its oxide, silica. The team has figured out that will super-thin structures made of This specific composite can transform infrared light waves into a momentum that will would likely accelerate a probe to 134,000,000 mph. Speeds like This specific can carry a little probe to our closest stellar neighbours, a huddle...

Dr. Marin and Dr. Beluffi begin their latest study by considering the various concepts that have been proposed for making an interstellar journey...also took into account missions that will be launching in the coming years like NASA’s Parker Solar Probe. This probe will reach record-breaking orbital velocities of up to 724,205 km/h, which works out to about 200 km/s (or 0.067% the speed of light). With their baseline for speed and travel time established – 200 km/s and 6300 years – Dr. Marin and Dr. Beluffi then set out to determine the minimum number of people needed to ensure that...

If you thought NASA was playing the long game with its plan to put people on Mars in the 2030s, you haven't seen anything yet. New Scientist has learned that a team at the administration's Jet Propulsion Laboratory has started planning a mission that would send a spacecraft to the Alpha Centauri system in... 2069. Yes, that's 52 years away, and timed around the 100th anniversary of Apollo 11's trip to the Moon. The probe would look for signs of life around the potentially habitable exoplanet Proxima b, giving humanity a much better look than it could get with observation...

The proposed journey, which was revealed by scientists with NASA’s Jet Propulsion Laboratory at the 2017 Geophysical Union Conference and reported by New Scientist, was born out of a budget mandate to make progress on interstellar travel. Now, NASA is working on technology that, if all goes as planned, could allow a spacecraft to reach ten percent of light speed, and the goal is to have it ready by 2069 with Alpha Centauri in its sights. ... The system is around 4.3 light years from Earth, which essentially makes it a next-door neighbor. If NASA succeeds at achieving ten percent...

Beam-Riding and Sail Stability by Paul Gilster on June 23, 2017 Breakthrough Starshot, the ambitious 30-year plan for launching small interstellar craft to a nearby star, depends critically on the sails that will ride a laser beam to 20 percent of lightspeed. In the essay below, James Benford takes a hard look at where we are now in the matter of sail stability, a subject he and brother Gregory have analyzed in their laboratory work. But as Jim points out, there is a great deal we still don’t know, emphasizing the need for a dedicated test facility in which deep...

In an attempt to leapfrog the planets and vault into the interstellar age, a bevy of scientists and other luminaries from Silicon Valley and beyond, led by Yuri Milner, the Russian philanthropist and Internet entrepreneur, announced a plan on Tuesday to send a fleet of robots no bigger than iPhones to Alpha Centauri, the nearest star system, 4.37 light-years away. If it all worked out — a cosmically big “if” that would occur decades and perhaps $10 billion from now — a rocket would deliver a “mother ship” carrying a thousand or so small probes to space. Once in orbit,...

Astronomers are preparing to announce the discovery of a potentially habitable second Earth orbiting a nearby star, it has been claimed. Last month, sources leaked news that the European Southern Observatory (ESO) had spotted an alien world orbiting Proxima Centauri, our closest stellar neighbour. An anonymous source from the ESO told German publication Der Spiegel the discovery is the closest habitable planet to Earth, which means we could reach it within our lifetime. But the astonishing finding was not officially announced, sparking furious speculation that the second Earth has deliberately been kept a secret. Now the ESO is set to...

The travel time from Earth to Mars using current space flight technologies is estimated to be 9 months. Last week, an innovative concept was proposed which claims to reduce the time that will be spent for Mars travel to merely three days through so-called photonic propulsion technology. But a new proposal threatens to radically shorten this period to an astounding 30 minutes. The idea was revealed by Phillip Lubin, who is a physics professor at the University of California Santa Barbara. Lubin was also responsible for the photonic propulsion technology proposal. This time, however, he identified the use of high-powered...