The Best How Long Would It Take To Travel One Light Year References. Or 28 billion years, going 60 mph. Image via brews ohare/ wikimedia commons.
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To put it into context, it takes between six months and a year for us to reach mars, which in light year terms, is 12.5 light minutes away. If we were to travel at a speed of half a light year, it would take us 2 years. Web a light beam takes 8 minutes to travel the 93 million miles (150 million km) from the sun to the earth.
