Planet detected in another galaxy - wow !

[twentysix by twentyfive]

Seriously good measuring even if done in Xrays. Quite a feat to "image" anything in Xrays like one can in the Visible part of the spectrum. So localising the Xray source is tricky.

 

[gbb]

Its a bit like the Titanic, we all knew it was out there somewhere...but it blew everyone away when they actually found it.

There will be trillions if planets if course....it blows my mind trying to comprehend it all (the erernity of space and all within), which of course, you can't.
I was equally blown away when i found you could see several moons round Jupiter with a simple bird scope.

 

[figbat]

The discovery of the first exoplanet still feels relatively recent to me, so finding one in another galaxy feels like a pretty rapid follow-up. Great work though, truly stunning.

I wonder if we have ever been spotted from another planet or galaxy? I’ll likely never know.

 

[Smokin Joe]

Does anyone seriously believe humans will be alive in 28million years?

Apart from Keith Richards, you mean?

 

[HMS_Dave]

The time scales and distances are so vast that it makes the chances of finding other life very small.
Our planet has been emitting man made radio waves for just over 100 years, that’s a tiny window when you are working with such vast areas of time and space.
Does anyone seriously believe humans will be alive in 28million years?

If we are here in 28 million years, we won't look like us... We'll probably more resemble the Crypt Keeper from Tales From The Crypt.

 

[Beebo]

I wonder if we have ever been spotted from another planet or galaxy? I’ll likely never know.

‘We’ won’t have been spotted, but the earth from the past may have been.

 

[MichaelW2]

28 million years ago human ancestors were small monkeys. In 28 million years we could be giant brains or we could be an evolutionary dead end that puzzles cockroach academics.

 

[newfhouse]

On a smaller scale light from our sun takes approx 10minutes to reach us
Therefore when we see the sun set
It actually disappeared 10 minutes earlier...( I think)

Not quite. It is true that the photons you see left the star several minutes earlier but the sunset itself is caused by the sun dropping below the horizon, which is considerably closer.

 

[MartinQ]

Meanwhile scientists searching for aliens have detected life
https://www.independent.co.uk/space/alien-signal-search-seti-breakthrough-listen-b1944906.html

 

[Milzy]

I know how the galaxies formed with the gasses clumping onto dark matter & the gravity pulling in more gasses & the weight/friction causing a nuclear like explosion etc. The question is who put the gasses there & did the void get put there at the same time?

 

[MontyVeda]

I know how the galaxies formed with the gasses clumping onto dark matter & the gravity pulling in more gasses & the weight/friction causing a nuclear like explosion etc. The question is who put the gasses there & did the void get put there at the same time?

All the answers are in the final episode of Prof Brian Cox's Universe series

 

[gavroche]

Even if we could detect signs of aliens, it would be from thousands of years ago so they may be extinct by now. Same with all the radio transmissions we send out, by the time another civilization detects them, we will long be gone so on that basis, we are very unlikely to ever meet aliens.
The size of the universe is so huge that even the speed of light is slow for a human life span by comparison.
We can only hope to physically explore planets in our own solar system.

 

[SpokeyDokey]

I know how the galaxies formed with the gasses clumping onto dark matter & the gravity pulling in more gasses & the weight/friction causing a nuclear like explosion etc. The question is who put the gasses there & did the void get put there at the same time?

What do you mean by who (put the gases there)?

The Big Bang event occured and at that point all matter was created.

Re the void (space I presume?) Space was created at the same time. Before the Big Bang there was no space.

 

[Milzy]

What do you mean by who (put the gases there)?

The Big Bang event occured and at that point all matter was created.

Re the void (space I presume?) Space was created at the same time. Before the Big Bang there was no space.

You don’t just get a Big Bang from nothing. The space was empty of stars for millions of years. Only dark matter & gas present. The burning of the stars much later created the minerals.

 

[SpokeyDokey]

You don’t just get a Big Bang from nothing. The space was empty of stars for millions of years. Only dark matter & gas present. The burning of the stars much later created the minerals.

No, I don't think that you are correct.

Pre-Big Bang there was nothing. Matter and space was formed at the same time in an incredibly small instant.

It's counter-intuitive for sure. 👍