Proxima centauri

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In other words, sending a probe to the nearest star system would not be easy. The founders of the This laser would accelerate the probes to 20 percent the speed of light (about 134.12 million mph, or 215.85 million km/h), according to the program scientists. At that rate, the probes could reach Proxima Centauri in 20 to 25 years. But first, scientists and engineers have to build the apparatus that will launch the tiny probes on their journey. In a news conference today (Aug. 24), Pete Worden, chairman of the Breakthrough Prize Foundation, said that a group of experts had convened earlier this week and discussed plans to build a prototype of the Starshot system. However, he added that the full-scale apparatus is at least 20 years off. "We certainly hope that, within a generation, we can launch these nanoprobes," Worden said. "And so perhaps 20, 25 years from now, we could begin to launch them, and then they would travel for 25 years to get there." He added that building the full-scale apparatus would likely cost about the same as building the Large Hadron Collider, the largest particle accelerator in the world; that project is estimated to have cost "Over the next decade, we will work with experts here at ESO [the European Southern Observatory] and elsewhere to get as much information as possible about the Proxima Centauri planet … even including whether it might bear life, prior to launching mankind's first probe towards the star," Worden said. Worden said the Breakthrough...

You won’t hear them say it, but some of the world’s most acclaimed astronomers have been frustrated for the better part of two decades. In that time they and their colleagues have found Not that they haven’t tried. Even if only composed of a single noisy pixel, a picture snapped of a promising planet around another star would go a long way toward telling whether that world is really habitable, or even potentially inhabited. It could be the first glimmer of the greatest discovery in human history—proof that we are not cosmically alone. Alas, today’s best telescopes have fallen short. Their large and sophisticated optics are still too small and simplistic to distinguish the faint form of a rocky world whirling amid the glare of a star. Something bigger and bolder seems to be required. To find another Earth, the thinking goes, one must first build a planet-imaging telescope of such size, sophistication and cost that it becomes No longer. Due to a single discovery announced last month, that future may play out over the next several years with astronomers using existing and under-construction telescopes on the ground and in space, rather than in fanciful far-future observatories. The catalyst for this epochal transition is For now, astronomers have yet to actually see this new planet—instead, they have simply measured how its to and fro orbital tugging causes Proxima Centauri to wobble back and forth in the sky. That wobble is a whisper that speaks volumes, revealing that this ...