It is absolutely amazing that we now have the technology to capture and share these type of images from an outpost in space and to do so in less than 24 hours. I still remember the grainy black and white shots during the early US Space Program but then again that was 50 years ago.
The shot below of Comet Lovejoy was taken from onboard the International Space Station (ISS) by its Commander, Dan Burbank, just yesterday.
Burbank described seeing the comet two nights ago as "the most amazing thing I have ever seen in space," in an interview with WDIV-TV in Detroit.
Image Courtesy of NASA
There are several other images of the comet at http://www.nasa.gov/mission_pages/station/multimedia/gallery/ and you can also find a massive database of on orbit photography at the Gateway to Astronaut Photography of Earth website.
There is also a time lapse video of the images showing Comet Lovejoy at the NASA Multimedia Video Gallery.