JAXA’s Akatsuki spacecraft sent back images of the Earth from 250,000 km away. More images can be found here on the JAXA site.
Earth seen at UV wavelengths. Image taken from 250,000 km away. Image courtesy JAXA.
This website is maintained by Paul Floyd. I am an amateur astronomer (and school teacher) with 25 years experience (as at 2015) in running a range of education and public astronomy outreach activities. As of January 2015, I have been providing astronomy information via the WWW for eighteen years.