Since 2001, a Mars Odyssey :-)
This breathtaking image is not from here on Earth. It's a composite image of part of the Martian landscape put together from photos taken by the Mars Odyssey probe which was sent to orbit Mars back in 2001 and is still going strong today. Here's the beginning of the Universe Today article from which I pinched the image
10 Years of the Mars Odyssey by NANCY ATKINSON on APRIL 7, 2011 This view across western Candor Chasma on Mars was created with data from the 2001 Mars Odyssey. Credit: NASA/JPL/Arizona State University, R. Luk A 2001 space odyssey indeed! On this day in 2001, the Mars Odyssey spacecraft launched, and now, 3,333 days later, the robotic spacecraft is still going strong. In orbit around the Red Planet, Mars Odyssey has collected more than 130,000 images and continues to send information to Earth about Martian geology, climate, and mineralogy. Last December, Mars Odyssey broke the record for the longest-serving spacecraft at Mars, besting the Mars Global Surveyor, which operated in orbit of Mars from 1997 to 2006.
For the rest of the article click here.