How does the candle flame look like in zero gravity?

Germans. V2, built by Wernher von Braun, was the first bal­lis­tic missile that could reach outer space. It was specif­i­cal­ly targeted at London. Nazis also planned sub­marine-­towed launch plat­form­s, that would have allowed a U-boat to launch V-2 missiles against the United States.

Saturn V sent as­tro­nauts to the Moon. Fully fueled it had a total mass of 6.5 million pounds (3,000 metric tons) and a payload capacity of 260,000 pounds (120,000 kg). Its engines were heard from 50 miles away.

3 days. It took 1 minute of flight to reach Mach 1 and 12 minutes to enter Earth's orbit. After one and a half orbits, the third-stage engine pushed the space­craft onto its three­-­day long travel to the Moon.

Less vi­o­lent­ly. In zero gravity no con­vec­tion occurs, that normally shapes the flame, dis­pers­es CO2 and brings fresh air to the wick. Without con­vec­tion, CO2 from com­bus­tion does not disperse as readily and tends to smother the flame