What do the red stripes and stars mean on Australian flag?

There are no red stripes or stars on the Australian flag. The Australian flag consists of a blue field with the Union Jack (the flag of the United Kingdom) in the canton (the upper left-hand corner) and the Commonwealth Star (a seven-pointed star) in the lower right-hand corner. The white stars on the right half of the flag represent the Southern Cross constellation, which is significant to Australia as it is only visible from the Southern Hemisphere.