06-10-2024, 08:30 PM
(29-07-2024, 08:55 PM)Tee tiong huat Wrote: Ancient Star Seen Zooming Through Space at 600 Kilometers Per Second. Most of the stars in the Milky Way tread sedate orderly orbital measures around the galactic center, not the case for everything. "hypervelocity" stars are extremely rare". A star named CWISE J124909+362116.0 (J1249+36 for short) not only exceeds galactic escape with a velocity at around 600 kilometers (373 miles) per second
Proxima Centauri, nearest star to our solar system, is approximately 4.24 light-years away from Earth, that means light travels at a speed of approximately 299,792 kilometers per second, would take roughly 4.24 years to travel from our planet to Proxima Centauri.
(Eubanks) NASA isn't only one pursuing this kind of research. Breakthrough started its Starshot project in 2016 to combine nanometer-sized spacecraft with light sails in 2017, NASA began funding it project targeted launching mission to Alpha Centauri by 2069, 100 yrs after Apollo 11.
Small spacecraft are easier to accelerate than larger probes, traditional fuel sources alone are not powerful or plentiful enough to push craft to light speed. Philip Lubin a prof of physics at Uni @California, Santa Barbara ideas on interstellar travel inspired Starshot team, told Live Science these craft will likely rely on light instead.
Similarly momentum carried by light transferred to spacecraft, causes it to recoil & accelerate." System is basically a gigantic flashlight — it's a giant laser array [on Earth]," Lubin said. If craft are sailboats, then laser light is wind in their sails.
Technology to create test such craft, such as communications equipment small enough to fit is still being developed, there's no physical reason to believe such a spacecraft couldn't conduct a flyby mission of Alpha Centauri, Lubin said.
Such mission behave much like Voyager 1 & 2 probes transmit high-resolution images of the star system back to Earth, some of which might contain our first look at Proxima Centauri's potentially habitable planet. Lubin stressed that a journey to Alpha Centauri would be a long-term endeavor, Eubanks said he's confident that big advances could come this century. I think, we'll reach Alpha Centauri with small probes launching in this decade 2040s & thus arriving in 2060s," Eubanks said. "Significantly larger probes should be possible by end century, without unexpected breakthroughs in propulsion physics, I think crewed missions will be a task for next century."
https://www.yahoo.com/news/ever-reach-al...41116.html
"'I'm thinking, if only >we'll can reach Alpha Centauri system, with small probes...Lehh. Launching in this decade of the 2040s, thus maybe...arriving in 2060s."...a good try.
