![]() Since light can only travel so fast, the telescope is a peephole into the history of the universe.įor more on the process that led to the Hubble Deep Field and why the image was so groundbreaking, check out the video above. What makes the Hubble Deep Field an atypical core sample is that rather than observing the material as it is now, the telescope collected images of galaxies as they appeared millions and billions of years ago. "You do the same thing if you're trying to understand the geology of the Earth: Pick some typical spot to drill down to try to understand exactly what the various layers of the Earth are and what they mean in terms of its geologic history." "We didn’t know what was there, and that was the whole purpose of the observation, basically - to get a core sample of the universe," Williams said, borrowing the concept of the "core sample" from the earth sciences. It was unusual to use precious observing time to point the telescope at nothing in particular, but that’s what they did. We compare the model with the data by constructing simulated images that. The Hubble Deep Field South is a composite of several hundred individual images taken using the Hubble Space Telescope 's Wide Field and Planetary Camera 2 over 10 days in September and October 1998. His team chose a completely dark part of the sky, in order to see beyond the stars of the Milky Way, and programmed Hubble to stare at that spot for 10 days. The Hubble Deep Field (HDF) images provide a stringent test of this model. Previous calculations had indicated that Hubble would not be able to detect very distant galaxies, but Williams figured they’d never know unless they tried. Robert Williams was the director of the Hubble’s science institute back in 1995, and it was his decision to attempt a deep field observation with the telescope. We explored the science and stories behind these iconic images, and what comes next. The Hubble Deep Field is more than 12 billion light-years deep. From August 2-6, 2021, Hubble took a deep dive into deep field images. ![]() The area of the sky the Hubble was looking at was equivalent to. The iconic 1995 image is crowded, not because it’s a broad swath of sky but because it’s a broad swath of time. The poster is of the Hubble Ultra Deep Field, which is a photo the Hubble Space Telescope took. If you hold a pin at arm’s length up in the air, the head of the pin covers approximately the amount of sky that appears in the Hubble Deep Field. ![]()
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