Spaceception

? Shouldn't being a old star be good for life? What's your problem with that system? Starshot could make some of the exploration pretty quick, especially if we have laser arrays to slow down the spacecraft on the other end, and they don't have to travel at .20 c .02 c will be fast enough to send hundreds of probes to explore the entire solar system in 30 years, maybe less.

Thx.

I've read somewhere that if intelligent aliens arise on planets with radii of 1.5 Earths and higher, they wouldn't be able to go to space because the gravity would be too high, is that true? And if so, would it really be impossible? Could there be other ways to get into space that would work under high gravity? Or would the aliens be stuck on their planet forever, until some other aliens gave them a space elevator or something?

I went camping, and I just got back, so it's delayed

Space exploration was my 4th merit badge, I got it at summer camp, and it was what inspired me to take an interest in space exploration, my rocket I built flew twice, I would've done it again, but they said 2 max My first was Art, I got that in 20 minutes My last (Not for long hopefully) was Dentistry.

I've heard it's because the old forum software got corrupted when they switched, so now we have those weird symbols.

Oh, happy birthday then! Mine's in 10 days

Oh, also, I'm now in a patrol called "The Krakens" Congrats! I haven't been able to even start mine since I moved cross country back in January, and I have no idea what I'm going to do. And btw, I'm not on the list.

@Nibb31 Try telling that to the Project Starshot guys that And like Bill Phil said, we've already seen where the mass is, really, the only thing left is the Kuiper belt and Oort cloud, and with Starshot, we could take care of that exploration pretty quickly.

I know that, I just thought it was funny that right before I shared the video, I saw that you already did that, when I clicked on this thread I skimmed to the bottom to see if it had already been shared, and sure enough, it was

I was just about to put that there!! claps good for you, for beating me.

Actually, I'm not subscribed, It was just on recommended

I'm sorry.

But it's THE MOON! I mean breathes heavily the MOON, That's the trip of a lifetime!

Why. The. Hell. Would. ANYONE. Turn down an offer to do a Lunar flyby!? http://www.space.com/32576-jeff-bezos-skipped-moon-trip-soyuz.html?cmpid=514648

Those commies sure like plastic Pls don't take offense anyone .

Actually, 9 people responded (1 twice) and 8 people have voted. And early this year I made a poll for a thread about Mars colonies, and that got a lot of replies and votes (Although, that may have been because it was pinned for a month, but still), and I've made several other threads with polls, and those get a decent amount of replies, so it may depend of the content of the post as well.

Alright, I added 4 more systems, all have planets

Well, there's 4 systems with that possibility, so which star would you want to go to? If it's completely different from our solar system, I think many planet scientists would use the word "exciting"

I'm basing the .2 c on project Starshot. Probe.

With all of the interstellar travel plans underway, where are we going to go? Obviously, Alpha Centauri is going to be the first choice because it's the closest and will take the shortest time to get there (Assuming you have a decent propulsion system of course), but it's... Boring, Sure we can study a very sunlike star, a slightly smaller sunlike star, and a star that isn't in any way sunlike aside from the fact that it's a star, but any planets it may have will be too hot, or non existent, so when we set out to the stars, so lets go somewhere that's interesting right? There's a poll, vote your preferred destination, and say why it would be best down below, I will put the most interesting stars with a distance of around 19 ly Alpha Centauri, 4.2 ly away, 3 star system, possible planets around Alpha Cen B, and Proxima, unknown for Alpha Cen A, about 20 years at .2 c Barnard's star, 5.9 ly away, Red dwarf, possible planets, about 30 years at .2 c Luhman 16, 6.5 ly away, Brown dwarf binary, about 32 years at .2 c Sirius 2, 8.6 ly away, Blue star, with white dwarf companion, about 42 years at .2 c Epsilon Eridani, 10.5 ly away, sunlike star young system, possibly still in the planet making process, 2 possible cold Jupiter's found, but not confirmed, about 53 years at .2 c Pryocon AB 11.4 ly away, F class subgiant, nearing the red giant phase, white dwarf companion, possible planet(s) Groombridge 34 AB, 11.6 ly away, Red dwarf binary, 1 known superearth planet, about .042 AU from the habitable zone, about 58 years at .2 c Epsilon Indi, 11.8 l away, sunlike star likely old enough to have an Earthlike planet with complex life, 2 Brown dwarfs found, about 59 years at .2 c Tau Ceti, 11.9 ly away, very sunlike star, older than the sun, 5 possible planets, 2 possibly habitable, about 60 years at .2 c Kapteyn's star, 12.9 ly away, red subdwarf, almost as old as the universe, 2 planets, 1 possibly habitable, ancient life? About 65 years at .2 c Wolf 1061, 13.8 ly away, red dwarf, 3 planet system, 1 in the habitable zone, about 69 years at .2 c Gliese 876, 15.2 ly away, red dwarf, 4 planet system, all Jupiter's and Neptune's, with 2 in the habitable zone, earthlike moons? About 76 years at .2 c Gliese 832, about 16 ly away, red dwarf, 2 planet system, 1 Jupiter like, orbiting far away, the other in the habitable zone, about 80 years at .2 c Gliese 682, about 17 ly away, red dwarf, 2 planet system, both super earths, one in habitable zone, about 85 years at .2 c 82 G Eridani, about 20 ly away, very sunlike star older than the sun, 3 planet system, all superearths, too hot for life, but still a possibility of an earthlike planet, about 98.55 years at .2 c Links to the stars above; https://en.wikipedia.org/wiki/Alpha_Centauri https://en.wikipedia.org/wiki/Barnard's_Star https://en.wikipedia.org/wiki/Luhman_16 https://en.wikipedia.org/wiki/Sirius https://en.wikipedia.org/wiki/Epsilon_Eridani https://en.wikipedia.org/wiki/Groombridge_34 https://en.wikipedia.org/wiki/Epsilon_Indi https://en.wikipedia.org/wiki/Tau_Ceti https://en.wikipedia.org/wiki/Kapteyn's_Star https://en.wikipedia.org/wiki/Wolf_1061 https://en.wikipedia.org/wiki/Gliese_876 https://en.wikipedia.org/wiki/Gliese_682 https://en.wikipedia.org/wiki/Gliese_832 https://en.wikipedia.org/wiki/82_G._Eridani Alright, those are all of the stars that I think would be worth studying, that we can get to within a century.

Also, ever since Starshot was announced, there has been 2 new propulsion systems that are being funded, this, and a fusion drive (I put that up here already, see page 1 or 2), do you guys think that Starshot was the thing we needed to really study the possibility of interstellar travel? I mean, I know there are countless papers on it, but it seems like we're really getting serious about it. Hopefully the flame doesn't die.