The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most scientifically productive instruments in history. From its vantage point 320 miles (515 kilometers) above Earth, the telescope has sent home more than 1.6 million observations contributing to over 21,000 scientific papers.

In the years since, Hubble has gathered more than 1.6 million observations and 430 terabytes of data. The telescope has revealed that supermassive black holes nestle at the heart of most large galaxies,

For 35 years, the Hubble Space Telescope has taken photos of celestial objects across the universe. Look back at 10 photos taken by the telescope orbiting above Earth's surface.