1962 - The Soviet Union recruited five women to become cosmonauts. 1963 - June - Valentina Tereshkova, cosmonaut from the USSR, becomes the first woman in space. She flew Vostok 6, orbiting the earth 48 times, and was in space nearly three day.
Scientists think that if we heat a certain body to an infinite temperature, the wavelength is zero !! that is there is no light at all, in other words there is black radiation and the resulting fire resulting from burning this body of the infinite temperature is dark black.
Some chemicals burn with a blue color, for example, so that if you burn some of these on an ordinary fire it will look blue for a while (some fireplace logs may do this). This does not mean that the temperature of the whole fire went up, just that these chemicals made the color change.