Celestia Forums

Hello,



I recently wrote a paper (which I present here https://youtu.be/DbxH_E8Iy1U) suggesting which star has the highest probability of being the source of the WOW! Signal.


Do you think that we should reply to the WOW! Signal or not?

hope you enjoyed the video

Hi everybody, I would like to share with you a crewed interstellar spacecraft which I have designed and called Solar One. It employs a combination of 3 propulsion methonds: nuclear fusion, beam-powered propulsion , and photon propulsion. Basically, several compact fusion reactors power a laser syste...

Hello!


NASA just released a new app where anybody can search for exoplanets.


I thought it was a good idea to make a video-tutorial showing how to use it, so here it is:


https://youtu.be/qeSnLchcb6c

I would like to know your opinion about this. Do you think we should try to contact aliens? I think it's safe as long as we choose stars as old as the Sun or younger. I also think that, if a nearby civilization hasn't contacted with us yet, it's probably because they don't have the means to do so. A...

Guys, I made a short video that some of you might find helpful, especially these times.

At least it was helpful for me while I was making it.

Just some cinema shots with some music; I just put them together.

Here it is: https://youtu.be/5n9Cfm8NrLk

Stay safe!

Book ''Is there life out there?'', by Sara Seager: https://www.saraseager.com/wp-content/uploads/2016/08/book-is-there-life-out-there.pdf Playlist on Exoplanets: https://www.youtube.com/watch?list=PL3RiFKfZj3psFWv83bbwYMuy88eQzCoHC&v=7UJEPKLmznk&feature=emb_title Search for exoplanets online...

Hi, I would like to share with you guys a couple of interesting simulations. This simulation belongs to an Earth-like planet located 4 light-years away, imaged with the European Extremely Large Telescope (ELT), expected in 2025. ELT and WFIRST with starshade at 4 ly Célia Blain et al - copia.jpg Thi...

Hope you enjoyed the video

Here some mind-blowing possibilities about super habitable exoplanets: 1. The colour of the sky could be light blue, similar to the colour of the sky on Earth in summer. 2. The oceans could be shallow, with a turquoise blue colour. 3. The vegetation could cover more regions than in Earth, and the co...

I think that Alpha centauri could host the closest Earth-like planet. A study shows that 22% of G and K-type stars could have Earth-like planets orbiting in the habitable zone. There are 9 Sun-like stars within 25 light-years. If we make the calculation, two of those stars could have an Earth-like p...