What's The Most Distant Thing You Can See?

Support: / pmsutter
0:00 - Intro
3:47 - The Greeks Were Just Eyeballing It
14:20 - With Our Naked Eye
20:32 - One Star To Rule Them All
24:46 - The Most Distant Confirmed Object
26:37 - The Edge Of What We Can See
28:48 - And What's Beyond That?
Follow all the show updates at www.askaspaceman.com, and help support the show at / pmsutter !
What’s the most distant thing we can see with the naked eye? What about with a telescope? What about at other wavelengths? Is there anything more to see? I discuss these questions and more in today’s Ask a Spaceman!
Keep those questions about space, science, astronomy, astrophysics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

[@user-mf1xc3zb2t]

Great hearing a non AI voice. Far better.

[@lpconserv6074]

Kudos for using your real voice. I have followed your reporting for a while now. For the Luddite method of measuring the brightness... Either fix it or stop complaining about us "Boomers" that still talk in GPM and standard cubic feet per minute..... I am going to die before I am completely converted, but working in world wide places that MOSTLY are in the metric and decimal systems, I am upgrading my work to be flexible. And as a older fellow who has traditionally been slow to update simply for the conveniences of others. But reporting has been metric for some time in many of the countries I work in... (what was that movie phrase??? Resistance is futile!!)

[@SchmelvinMoyville]

@@lpconserv6074really good impression of a bot, well done dude

[@GeorgeStar]

Do a video on future telescopes!

[@ronfisher5259]

Not only very informative and understandable, this was a lot of fun too. Thank you

[@KuleRucket]

I don't understand why this channel isn't a lot bigger

[@MeissnerEffect]

Yay! Another moment of fascination and the magic of the Universe ✨🦋 Oh and a ‘Mega-Telescopes In The Works’ video huge please 🙏!!

[@redhaze8080]

Uranus is easily visible to the naked eye. I've always struggled to understand how it needed "discovering". Cool vid.

[@redhaze8080]

You don't even need really good light levels hey

[@redhaze8080]

seriously it's not just visible , it's pretty easy to find just by looking.

[@7heHorror]

I guess people previously thought it was a star.

[@redhaze8080]

@@7heHorror Yeah but they knew the planets are along the ecliptic plane and they flicker less though.

[@7heHorror]

@@redhaze8080 Apparently the dimness and slowness of the planet fooled astronomers for 1900 years. 😅

[@DobrinWorld]

Thank you!

[@florianbuerzle2703]

As Bessel was the director of Königsberg observatory, I would regard him as professional astronomer, not as an amateur (although he had no formal university education, which was not all that uncommon in his day).

[@user-em2pe3rf4h]

I am fortunate. I live fairly high up in the mountains of N. California and every night I sit outside, looking at the greatest of all mysteries and wonder about the what, the when & the how of it. Thanks to Dr. Sutter,my caveman brain can grasp it just a little better. I don't believe that everything can ever be known about the universe, but that doesn't stop me from wanting to know everything that I can about it.

[@EdwardHinton-qs4ry]

I saw the Andromeda galaxy with my naked eyes when I was a kid but now I can hardly see a star.

[@martyrosadil9989]

I live in a small village in Egypt and I hardly see a star how is that?

[@KafshakTashtak]

You can still see from remote locations like Grand Canyon, or Yellowstone.

[@whichgodofthousandsmeansno5306]

The rate of expansion far exceeding the speed of light and still accelerating might answer some questions I am noticing in the comments. This stuff is mind boggling and I am certainly no astro/theoretical physicist much less one like Einstein that could break these things down to simpler forms. In this case I need to trust those advanced in the field.

[@drewg2403]

Great content. You should do a video on the different interpretations of quantum mechanics. Would be interested to hear your thoughts specifically on the Everettian (many worlds) interpretation.

[@0neIntangible]

Your interspersed quips & clips are appreciated.

[@adamdansiger]

I love the Beastie Boys 19:16

[@anotherplatypus]

If you entangle two particles and give one to someone at a distance, can you run yours through quantum computer gates to change the probability of your bit, so when they observe theirs it's a way to communicate? Or is quantum computing totally separate or something?

[@Limoncellodeceptobro]

Yes!

[@edibleapeman]

If we're living in a holographic universe, would there be a definite "edge" of the cosmos? If so, wouldn't it make sense then to observe the Big Bang in all directions - this just being the emitted beam(s) of photons constructing reality from all directions at once?

[@philipcollins218]

That’s an easy answer- labour in power

[@GuitarGears4544]

What I don't understand is how the CMB can be visible in all directions, but it originated when the universe was much, much older (and therefore smaller). So... why did it take so long to get to us? Why didn't it reach us, and then pass us, by now? Conceptually it's very difficult. Yes, the standard response is "Inflation!" But why can't the answer be "Because the universe is older than 13.8 billion years?

[@whichgodofthousandsmeansno5306]

I could be wrong as I am no astrophysicist but could it have something to do with the expansion far exceeding the speed of light as the current theory suggests?

[@yasirarafat9279]

What known am physical principles would answer the question of going beyond Big Bang?

[@d_s_x414]

Why doesn't the CMB cook everything on Earth like my microwave cooks my food? I thought maybe it had something to do with intensity? You did mention that we are bathed in the CMB so that threw me off a bit.

[@mattstewart4199]

i have a stupid question. if we and everywhere is the center of the universe, how can we see so far back in time? Why hasn't the light from these 13-billion-year-old stars already past us?

[@whichgodofthousandsmeansno5306]

The expansion far exceeds the speed of light.

[@larrynelson4909]

REALLY! name one star that wouldn't melt your face off if you approached it?

[@Desertphile]

Q: What's The Most Distant Thing You Can See? A: About four feet.

[@crispycritter7022]

I can see Uranus 👀

[@polygonalmasonary]

The most distant thing I see……….. a huge lottery win 😢🙏🇬🇧

[@TakeAHikeMike]

I've never managed to win a scratch off. Lol

[@0neIntangible]

@@TakeAHikeMike My neighbour recently won $250K on a crossword scratch play... mind you, they've been playing these regularly, for many years, before this big payout.

[@rumirill]

There is No edge to the uni verse

[@kricketflyd111]

Does red shift have a wavelength?

[@fatperson1152]

red shifting is just the doppler effect but for light

[@larrynelson4909]

We can see 13.8 billion years away that doesn't make the universe 13.8 billion years old only that it's as far as we can see the universe could be much much older than that

[@edibleapeman2]

Unless you go in for Boltzmann Brains, the universe is almost definitely older than that.

[@7heHorror]

Yes there could be stuff outside or preceding what's observable and such concepts are discussed as varieties of multiverse.

[@Milan_Openfeint]

CMB wasn't created long after Big Bang, and we can measure age of CMB through redshift and Hubble constant. There can be some error but not "much much older".

[@tabaccocubano]

basically when we look out into the universe we are looking back in time.. minutes... when we look at our sun.. and billions of years when looking at the farthest star.. most people do not realize that.

[@iMannyFest]

I know you understand and your explanation is excellent. 👌🏾 I’d like to make a proposal to amend a couple of words but I think is important detail.. To travel the full diameter of our Galaxy is 100,000 light years. So anything we see further than this is definitely outside our Galaxy which means ANY light we see.. millions or Billions of light years away is DEFINITELY other galaxies and definitely NOT STARS. Lights takes 8 minutes to reach us on earth from the Sun our star. The Sun is approximately 93,000,000 miles away. The nearest star to our sun is Proxima Centaur & light takes 4 years to reach us. For light to reach us from our nearest Galaxy Andromeda.. The light takes 2,000,000 years to reach us here on earth. Speed of light c = 186,000 miles/sec or Approximately 300,000 Kilometres/sec Crazy to get your head around.

[@Jon6429]

The most distant thing I can see? Getting a decent paying job is pretty much out there

[@chadbarnard3620]

I think one of Mark McGwire's home runs from 1998 just landed near JADES-GS-z13-0.

[@martyrosadil9989]

What is going to happen if we shoot a neutron towards an anti-uranium atom?

[@larrynelson4909]

The universe will turn inside out 😂

[@7heHorror]

Awesome. So the light from JADES-GS-z13-0 traveled only 13 billion ly to reach us and we're inferring that by NOW the galaxy must be 33 billion ly away? 🤯 Seems like cheating! 😉

[@reinholdmathuni5134]

yes, the expansion of the universe is more than light speed in far distances

[@kevinroberts781]

Your mom's house

[@ossiedunstan4419]

Reported