See the most important image of NASA in the history of the space telescope | By Ethan Siegel | Start with an explosion! | APR, 2025

If I kept a penny from a distance of 160 feet (50 meters) away, it would occupy more area in the sky than this section of the original field image of the original Hubble. Here you can see several hundred galaxies, with even more lies beyond brightness and hubble wavelength capabilities. (Credit: R. Williams (STSCI), the Hubble and NASA/ESA Deep Field Team)

The Hubble space telescope, launched in 1990, was originally seen as a colossal error. This image, taken in 1995, changed everything.

Ethan Siegel

35 years ago, NASA launched its First Great Observatory: The Hubble space telescope.

This photo shows the Hubble space telescope that is being deployed, on April 25, 1990, one day after its launch. It was taken by the IMAX Chamber Bay (ICBC) mounted aboard the discovery of the space ferry. He has been operational for 35 years, and has not received service since 2009. With a mirror of 2.4 meters in diameter, he brings together so much light in 1 minute as a 160 mm telescope (6.3 ″) would require 3 hours and 45 minutes to meet. (Credit: NASA/Smithsonian Institution/Lockheed Corporation)

When he achieved First Light, a big problem appeared: his optics were defective.

This 1990 image was the “first light” image of the then Hubble Space Telescope. Due to the lack of atmospheric interference along with the great hubble opening, he was able to solve multiple components to a Star system that a terrestrial telescope could not solve. When it comes to resolution, the wavelength number of light that are adjusted through the diameter of its primary mirror is the most important factor, but this means that the mirror is ideal, perfectly formed, which was not the case of Hubble initially. (Credit: E. Persson (Observatory of the bells, Chile)/Observatories of the Carnegie Institution of Washington; Right: NASA, ESA and STSCI)

This spherical aberration failure He avoided that Hubble’s images achieve their designed sharpness.

This image of three panels shows the same specific region with a terrestrial telescope that achieves a resolution of 0.6 ″ (left), the Hubble WFPC1 image, the image prior to the cost of that same field of vision (center), highlighting the problem of spherical aberration of the mirror and the view of the mission subsequent to the service of the same star field with Hubble (to the right), with cost and WFPC2 installed. The difference in resolution and types of characteristics that can be solved is impressive. (Credit: MD Lallo, Optical Engineering, 2012)

To correct this, A service mission was flew in December 1993.

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