a standard established in the 1951 case Dennis v. U.S. whereby the government could suppress speech to avoid grave danger, even if the probability of the dangerous result was relatively remote; replaced by the imminent Lawless action (incitement) test in 1969.
Laika became the first living being to orbit the Earth on Sputnik 2, Nov. 3, 1957. She died several hours into the flight from stress and heat. On May 28, 1959, rhesus monkey Able and squirrel monkey Baker became the first to successfully return to Earth after space flight.
On November 3, 1957, Laika the dog rode Sputnik 2 into outer space, the first living creature to reach Earth orbit-but unlike all the animals and humans who followed, hers was a one-way ticket only.n November 3, 1957, Laika the dog rode Sputnik 2 into outer space, the first living creature to reach Earth orbit-but unlike all the animals and humans who followed, hers was a one-way ticket only.