NASA’s Spitzer, Not Hubble, Reveals Our Most Awe-Inspiring View Of The Universe


Only by observing it can we know what the Universe is like.

Looking in (mostly) visible light, like Hubble does, reveals wholly impressive sights.

But Hubble’s views are fundamentally limited in two ways.

First, this light can only reveal objects where intervening dust is absent.

Second, Hubble’s views are deep, but are extremely narrow-field.

As a result, only a few patches of sky possess deep, revealing views.

Hubble excels at revealing “individual trees.”

But “the larger forest” encompasses grander perspectives.

Only deep, wider-field views will suffice.

Infrared light — which is largely transparent to light-blocking dust — is ideal for this task.

NASA’s Spitzer, which operated from 2003-2020, first revealed a full square degree to unprecedented depths.

On large, cosmic scales, every point in these images represents its own galaxy.

S-CANDELS, a follow-up to the original Spitzer Extended Deep Survey (SEDS), went even deeper.

Quadrupling the original SEDS observing time, exposed galaxies trace the cosmic web.

Across 13 billion years of cosmic history, galaxies are clustered, rather than distributed randomly.

It’ll require hundreds of James Webb observations, stitched together, to match S-CANDELS.

Appreciate the enormity of the Universe. It encompasses everything we know.

Mostly Mute Monday tells an astronomical story in images, visuals, and no more than 200 words. Talk less; smile more.

Articles You May Like

Ants shrink their brains for motherhood — but can enlarge them when egg-laying ends
Scientists Turn Spider Webs Into Spider Harps To Hear Spider ‘Voices’
Coronavirus variants: what viral mutants mean for the pandemic
We decide how tomorrow will be by what we create today
Haunting new Hubble photo reveals the wisps of a dying galaxy

Leave a Reply

Your email address will not be published. Required fields are marked *