They can go in incubator now. They can be put in incubator 2 days after set or up to 8 days. The duck egg that was layed yesterday can be but wait a day or 2 for the newer ones. I would wait a while until you have a clutch of eggs that are needed, the eggs will be fine up to 8 days.
At last, on January 31, 1958, the United States succeeded in launching its first satellite, the Explorer. The Explorer was still slighter than Sputnik, but its launch sent it deeper into space. The Soviets responded with yet another launch, and the space race continued.
The first artificial satellite to be launched was the Russian Sputnik 1, in 1957, and in 1962 the Telstar satellite relayed the first satellite television signal. Sputnik means âfellow travellerâ in Russian, while Telstar got its name because it was built by Bell Telephone Laboratories and used for telecommunications.ach of a series of Soviet artificial satellites, the first of which (launched on 4 October 1957) was the first satellite to be placed in orbit.