Nepal, Jan. 15 -- So, as humans aim to set foot on Mars in the coming decades, researchers are seeking to learn how flames spark and spread in space -- and how best to stamp them out.

When fire breaks out in the low-gravity, high-stakes conditions inside spacecraft or space stations, it behaves very differently than back here on Earth.So, as humans aim to set foot on Mars in the coming decades, researchers are seeking to learn how flames spark and spread in space -- and how best to stamp them out.

The deadly threat fire poses in space goes all the way back to the first mission of NASA's Apollo programme, which would go on to put the first humans on the Moon.

Just days before the Apollo 1 mission was scheduled to launch in January 1967,...