Word: proxima
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Sources: Acueity, Proxima Therapeutics, M. D. Anderson Cancer Center, Rosetta Inpharmatics
...will have to seek out homes on other planets orbiting other warming stars. That will take some giant leaps. Even the speediest galactic ark would have to travel hundreds of years, during which multiple generations would live and die on board, before reaching even a nearby star like Proxima Centauri, 4.3 light-years away. And in the end, not even such a sanctuary would save our descendants, or any other life-forms still inhabiting the universe, from its last, dying gasp...
Armed with the combination of the Keck's power and the detector's sensitivity, Ghez has been able to measure the motions of stars that lie 100 times as close to the core as the nearest star, Proxima Centauri, lies to the sun, and he finds that they're whipping around the galactic center at 1,600 miles per second, nearly 100 times as fast as Earth orbits the sun. It only takes high school physics to calculate that the object they're orbiting is as massive as 3 million suns yet packed into an area no bigger than...
...plaque is one day recovered by advanced extraterrestrials, however, it is unlikely that any of us will be around to receive their reply. At Pioneer's current cruising speed, even if the spacecraft were headed directly toward the closest star, Proxima Centauri, and any possible nearby residents, it would not arrive for some 100,000 years...
...added measure of time. Traveling at 186,000 miles per second, the light that long ago left distant stars and galaxies is only now reaching the earth. Thus man sees the nearby sun as it was little more than eight minutes ago; the nearest star to the sun. Proxima Centauri, as it was about four years ago; and some of the farther galaxies as they looked billions of years ago. Peering into the heavens then is like looking back into time, and some of the stars that astronomers see may no longer exist. Truly, as André Schwarz-Bart wrote...