332 réponses à ce sujet

[Hanako Ikezawa]

We'll learn even more in 2016 when the Gaia space probe gives us information on around a billion stars in the Milky Way. A VERY small fraction of the total in our galaxy and of course nowhere close to our neighbor Andromeda, but it'll give us more to analyze and understand.

 

And thats freaking cool.

I'm super excited for Gaia's findings. 

 

Not true. Many terrestrial exoplanets have been found recently. Most are super Earths, but I wouldn't call these "very big", as they are very tiny compared to the typical "hot Jupiter" Pegasid worlds which were previously found in abundance not because they are abundant per se but because they are easier to detect. It is much harder to detect terrestrial worlds, but it has been done, and with the next gen telescopes they will become the norm.

It's also worth noting that literally just today a terrestrial exoplanet was discovered within the habitable zone of its G-type star.

EDIT: ninja'd by the OP, lol. He actually had the decency to link the article. Not me, too lazy.

I know terrestrial worlds have been found. I never said they were all jovial planets. I count Super Earths as 'very big', thus said all the ones we found so far are very big. 

And yes, I know it will become easier. My future career may very well be spotting exoplanets. I still stand by my statement that we are nowhere near close enough to detect planets in the Andromeda galaxy. 

[LPPrince]

I'm super excited for Gaia's findings. 

 

I know terrestrial worlds have been found. I never said they were all jovial planets. I count Super Earths as 'very big', thus said all the ones we found so far are very big. 

And yes, I know it will become easier. My future career may very well be spotting exoplanets. I still stand by my statement that we are nowhere near close enough to detect planets in the Andromeda galaxy. 

 

Question is, how far is life in Andromeda from detecting planets in The Milky Way? What do they even call The Milky Way? Are they already aware of Earth? Is life as we understand it even in Andromeda? Are we beyond their comprehension?

 

QUESTIONS QUESTIONS QUESTIONS

[Kabooooom]

I'm super excited for Gaia's findings.

I know terrestrial worlds have been found. I never said they were all jovial planets. I count Super Earths as 'very big', thus said all the ones we found so far are very big.
And yes, I know it will become easier. My future career may very well be spotting exoplanets. I still stand by my statement that we are nowhere near close enough to detect planets in the Andromeda galaxy.

To be honest, I think you are kind of backpedaling. A super-Earth with three times the mass of Earth is hardly "very big" from a planetary stance. Your exact words were "we can hardly detect (exoplanets), all of the ones we have detected are very big and orbiting close to their stars".

Both statements are factually incorrect. Numerous small (compared to gas giants) terrestrial worlds have been found, and exoplanets have been discovered both outside of the habitable zone in distant orbits and in close orbits - so not ALL of them, by your own account, are in relatively close orbits. Your statement was phrased in such a way that it was definitely suggestive that you were referring to close orbiting gas giants - especially since, indeed, these have historically been the easiest to detect. So if that wasn't your intent, that's hardly my fault for misinterpreting you when you made such a superficially incorrect statement, especially from someone with a professed interest in astronomy.

And I honestly haven't met an astronomer that would consider a terrestrial world, even a super Earth, a "very big" astronomical body.

[Hanako Ikezawa]

Question is, how far is life in Andromeda from detecting planets in The Milky Way? What do they even call The Milky Way? Are they already aware of Earth? Is life as we understand it even in Andromeda? Are we beyond their comprehension?

 

QUESTIONS QUESTIONS QUESTIONS

We'll never know until either we contact them or they contact us. 

 

To be honest, I think you are kind of backpedaling. A super-Earth with three times the mass of Earth is hardly "very big" from a planetary stance. Your exact words were "we can hardly detect (exoplanets), all of the ones we have detected are very big and orbiting close to their stars".

Both statements are factually incorrect. Numerous small (compared to gas giants) terrestrial worlds have been found, and exoplanets have been discovered both outside of the habitable zone in distant orbits and in close orbits. Your statement was phrased in such a way that it was definitely suggestive that you were referring to close orbiting gas giants - especially since, indeed, these have historically been the easiest to detect.

I honestly haven't met an astronomer that would consider a terrestrial world, even a super Earth, a "very big" astronomical body.

Then you're thinking wrong. Don't assume things about people. 

I'm sorry if you misinterpreted my post. That is not what I meant. I'll try to be more careful in the future. 

There isn't an astronomer that would really call any planet a "very big" astronomical body, since even the Super-Jupiters are absolutely minuscule compared to the other astronomical bodies like stars, nebulae, galaxies, filaments, etc. Planetary-wise, Earth is used as a reference point so something that is a few times more massive is considered "very big". Jovial planets are considered "massive", not "very big". 

[LPPrince]

NASA's currently live streaming an experiment where lettuce was grown in space(or rather, grown in the station );astronauts aboard the ISS are gonna eat it and tell us how it goes. hahaha

 

We're getting closer to Andromeda one leaf at a time

 

http://www.nasa.gov/...satv/index.html

[Kabooooom]

We'll never know until either we contact them or they contact us.

Then you're thinking wrong. Don't assume things about people.
I'm sorry if you misinterpreted my post. That is not what I meant. I'll try to be more careful in the future.
There isn't an astronomer that would really call any planet a "very big" astronomical body, since even the Super-Jupiters are absolutely minuscule compared to the other astronomical bodies like stars, nebulae, galaxies, filaments, etc. Planetary-wise, Earth is used as a reference point so something that is a few times more massive is considered "very big". Jovial planets are considered "massive", not "very big".

Lol, so your position is now basically that "no astronomers refer to planetary bodies or stars as 'very big' (not exactly true) but I am going to go ahead and make up my own definition for "very big" which supports my statement which wasn't correct by my own accounts of what astronomers consider correct".

Gotcha.

[LPPrince]

Andromeda again, tho more recent

 

http://apod.nasa.gov...d/ap150817.html

[Spacepunk01]

Take a look at the beautiful Andromeda Galaxy in 4K:

 

This is a good opportunity for people who don't understand large numbers to get an idea about the sheer number of stars galaxies can contain. We will never run out of star systems to explore. It certainly was unfortunate that we had to leave the MWG, since we didn't even explore 0.1 % of the stars in that galaxy.

 

[LPPrince]

Take a look at the beautiful Andromeda Galaxy in 4K:

 

This is a good opportunity for people who don't understand large numbers to get an idea about the sheer number of stars galaxies can contain. We will never run out of star systems to explore. This is why I was so sad that we left the MWG, since we didn't even explore 0.1 % of the stars in that galaxy.

 

*snip*

 

This is on the first page hahaha

 

Still, always nice to see it again.

[Spacepunk01]

This is on the first page hahaha

 

Still, always nice to see it again.

 

The thread needed a refresh. Let's just say that this one is for new visitors.

[LPPrince]

An article on warp speed space travel and the distances needed to be covered to reach things like the Andromeda Galaxy

 

http://www.ibtimes.c...d-drive-1515810

[LPPrince]

The thread needed a refresh. Let's just say that this one is for new visitors.

 

I advise them to look through the whole thing. Lots of awesome stuff they might miss.

[prosthetic soul]

All of this discussion is moot.  We're going to be stuck on this island ****hole known as Earth until the Sun swallows us all. 

[LPPrince]

All of this discussion is moot.  We're going to be stuck on this island ****hole known as Earth until the Sun swallows us all. 

 

Dream big, Chronoid.

[prosthetic soul]

Dream big, Chronoid.

I used to do that.  Then I saw the ME 3 ending. 

 

[LPPrince]

I used to do that.  Then I saw the ME 3 ending. 

 

 

I feel you, but OUCH. hahaha

[Hanako Ikezawa]

All of this discussion is moot.  We're going to be stuck on this island ****hole known as Earth until the Sun swallows us all. 

I'd be surprised if we last that long. Billions of years before that Earth will turn into a Venus-like planet making in incapable of supporting life. 

[LPPrince]

I'd be surprised if we last that long. Billions of years before that Earth will turn into a Venus-like planet making in incapable of supporting life. 

 

Thats if we don't mess it up first.

[Jen-Yu]

Take a look at the beautiful Andromeda Galaxy in 4K:

 

This is a good opportunity for people who don't understand large numbers to get an idea about the sheer number of stars galaxies can contain. We will never run out of star systems to explore. It certainly was unfortunate that we had to leave the MWG, since we didn't even explore 0.1 % of the stars in that galaxy.

 

 

 

          well said,but even 0.1% is too much

 

            In one calculation, the Milky Way has a mass of about 100 billion solar masses, so it is easiest to translate that to 100 billion stars. This accounts for the stars that would be bigger or smaller than our sun, and averages them out. Other mass estimates bring the number up to 400 billion

 

           so how many PLANETS did we discover in all ME trilogy?

[Spacepunk01]

All of this discussion is moot.  We're going to be stuck on this island ****hole known as Earth until the Sun swallows us all. 

 

That's a little too optimistic don't you think?

 

          well said,but even 0.1% is too much

 

            In one calculation, the Milky Way has a mass of about 100 billion solar masses, so it is easiest to translate that to 100 billion stars. This accounts for the stars that would be bigger or smaller than our sun, and averages them out. Other mass estimates bring the number up to 400 billion

 

           so how many PLANETS did we discover in all ME trilogy?

 

You are correct. I am just bad with numbers and I don't know how many zero's to add..

[LPPrince]

That's a little too optimistic don't you think?

 

A little bit, yeah actually. 

[TheRevanchist]

Now THIS is a thread I can get behind, as should any self respecting nerd!

[LPPrince]

Now THIS is a thread I can get behind, as should any self respecting nerd!

 

Right? Right. 

[KaiserShep]

I'd be surprised if we last that long. Billions of years before that Earth will turn into a Venus-like planet making in incapable of supporting life. 

Well, billions of years from now the sun would have likely expanded and consumed the planet anyway.

[LPPrince]

Well, billions of years from now the sun would have likely expanded and consumed the planet anyway.

 

Maybe if we're nice Sol will eat something else and we can make the jump to Andromeda!