Mars has a launch window every 26-months. The round trip travel time to the moon is about 11 days. This means that you could send 72 round trips to the moon for every launch window to Mars.
Doug Plata has also described how greenhouses can be made on both Mars and moon. The moon greenhouse would use LEDs and other different solutions than the Mars greenhouse.
The Moon and Mars would both have accessibility, water, fuel and food for future colonists.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.