Hubble took a photo of the same active galaxy 20 years apart

The brightest photo of the week shows the spiral galaxy NGC 2903. This image was obtained using

the Advanced Hubble Research Camera (ACS); and the Wide Field of View Camera (WFC3).

Photo of 2021. ESA / Hubble & NASA, L. Ho, J. Lee and the PHANGS-HST Team

Both were installed on the telescope in 2002 and 2009.respectively. Interestingly, Hubble previously observed this particular galaxy earlier, in 2001 (pictured below). But then neither ACS nor WFC3 was installed on the telescope.

Photo of 2001

The 2021 image boasts morehigh resolution. As a result, the entire structure of NGC 2903 is more detailed than in the 2001 photograph. ACS and WFC2 collectively cover a wide range of ultraviolet, optical and infrared wavelengths. The 2001 image was captured using the Wide Angle Planetary Camera (WFPC2) that operated on Hubble from 1993 to 2009.

Comparison of photos from 2021 and 2001. Collage "Hi-tech"

A comparison of 2001 and 2021 NGC 2903 images - remarkable images for their time - underscores the technological advancement of space exploration.

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