Help make Alexa smarter on Alexa Answers. Sign in with Amazon


How long does it take to travel one lightyear?

If you travel at the speed of light it takes one year to travel a light year. By comparison the fastest spacecraft we’ve ever built- the Parker solar probe- with a maximum speed of 430,000 MPH would take just over 1500 years to travel 1 light year.

{{ relativeTimeResolver(1609457028550) }}

Points points 124
Rating 2

Similar Questions
Sign in to view all similar questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world