Astronomers reveal first image of a black hole

[marylander1940]

The first picture of a black hole opens a new era of astrophysics

 

 

https://www.sciencenews.org/article/black-hole-first-picture-event-horizon-telescope

 

OP note: Unfortunately we live in a time when our president doesn’t believe in science and distrusts all experts!

 

Edited April 10, 2019 by marylander1940

[rvwnsd]

Cool picture and articles. Thanks for posting.

Edited April 11, 2019 by rvwnsd

[+ sync]

I notice that the M87 black hole has an orange hue much like the black hole at 1600 Pennsylvania Avenue.

[marylander1940]

Cool picture and articles. Thanks for posting.

 

A pleasure! We should talk a little more about science on here specially now a days!

[Mocha]

A pleasure! We should talk a little more about science on here specially now a days!

 

For anyone who skippped out on science class. And yes, at some point the sun will become a black hole. But before then, it’ll become a red giant and fry the earth. Hopefully by then, time as we know it will have ceased to exist lol.

 

 

But one thing I still don’t understand sometimes: if it takes 1,000 light years for a star’s light to reach earth, how do we actuallt know then what stage these stars are really in?

 

What if the sun and stars as we know it, are in different stage than what we are currently seeing??

Edited April 12, 2019 by Mocha

[Gadfly22]

For anyone who skippped out on science class. And yes, at some point the sun will become a black hole. But before then, it’ll become a red giant and fry the earth.

Apparently you skipped out on science class (spelling too! ). Whether or not a star becomes a black hole depends on its mass. Our sun is way too small for that. Actually the chart you posted says exactly that. Look at it again.

Hopefully by then, time as we know it will have ceased to exist lol.

If you believe the big bang theory (or watch the TV show) time will go on for many billions of years after our sun has burned itself out.

But one thing I still don’t understand sometimes: if it takes 1,000 light years for a star’s light to reach earth, how do we actuallt know then what stage these stars are really in?

We don't. We only know what stage they were in 1000 years ago (or however many light years away said star is). Don't lose any sleep over it.

[mike carey]

And to add to @Gadfly22's reply, a light year is a distance not a period of time, so 'If a star is 1,000 light years away ...'.

 

If here is an alien 850 light years away, they could be able see that Notre Dame Cathedral was being built but they wouldn't know about the fire for another 850 years.

[Gadfly22]

If anyone wants a private astronomy lesson I'll be happy to help you locate Uranus!