What is volume of space 8ftx4ftx7ft?

When was the first mirror invented? What word from asterikos means star shaped mark? Nasa received three messages in a strange language from a distant planet the scientists studied the messages and found that necor buldon slock means danger rocket explosion and edwan mynor necor? Is the god Hades a boy or girl? Why do lunar eclipse only occur when the moon and the sun are opposite from the sun? What are the best blinds to keep a room very dark? Can a new moon last for three days? What are high clouds made of? How would Albert Einstein like to be remembered? Where does some of the material go during the collapse of a star? Can fire fall from the sky? Is stalactite an adjective? What happens to the amount of sunlight received in both the northern and southern hemisphere during the March Equinox? Is reaction time different in space? What would happen if the sun was smaller in an eclipse? Why is the moon warmer than Earth in the day and colder than Earth at night? What are the six circumpolar constellations? What planet did the viking 1 land on? Density of terrestrial planets? What is avena made from?