A combined optical/mid-infrared image featuring data from both the Hubble Space Telescope and the James Webb Space Telescope. It is in a spiral pattern.

Can the James Webb Space Telescope really see the past?

On July 12, the James Webb Space Telescope (JWST) made history by broadcasting its first image: a photo filled with jewels which has been touted as the deepest photo of the universe ever taken.

In addition to looking further into space than any observatory before it, the James Webb Space Telescope has another trick in its mirrors: it can look further back in time than any other telescope, observing distant stars and galaxies as they appeared 13.5 billion years ago, few time after the start of the era universe as we know it.

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