Originally Posted by Mona - Astronomy
On this day in 1990 – May 20th – the Hubble Space Telescope sent back its first image, that of several stars captured with its Wide Field/Planetary Camera.

Unfortunately, it was then discovered that there was a flaw in the main mirror which meant fuzzy images for three years until the first shuttle servicing mission. Interestingly, the images were still much better than the ones from ground-based telescopes of the time.

Do you think it was because they were taken outside the Earth's atmosphere?