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 Post subject: proxima fever!
PostPosted: Tue Jan 19, 2016 11:19 am 
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In case you missed it, a new site has sprung up on the internet following researchers at the European Southern Observatory in hopes of confirming the existence of a planet around Proxima Centauri.

Ian Stark at Inverse has more on Pale Red Dot:
https://www.inverse.com/article/10360-p ... -exoplanet

Or go straight to the source, Pale Red Dot's website.
https://palereddot.org/

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 Post subject: Re: proxima fever!
PostPosted: Tue Jan 19, 2016 11:25 am 
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This investigation raises the question, is Proxima a bound star? Or is it just passing through, probably knocking a few objects from Alpha Centauri's Oort cloud and setting off an extinction-level event for one of the binary pair's planetary companions?

Paul Glister at Centauri Dreams considers the question:

http://www.centauri-dreams.org/?p=34851

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 Post subject: Re: proxima fever!
PostPosted: Tue Jan 19, 2016 11:30 am 
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Okay, I made a big supposition in the previous post of this thread regarding the existence of planets in, or around, the neighborhood of Alpha Centauri A + B.

We haven't spotted them yet because binary stars present their own set of challenges. It's simple to block the light of one star, but dimming two stars for an exoplanet survey presents its own challenges to astronomers.

Eduardo Bendek, et al., have an idea for a space telescope to directly image Alpha Centauri's habitable zone.
http://arxiv.org/abs/1510.02489

Here's their visual presentation for consumption.
http://spacescience.arc.nasa.gov/media/ ... ent_v3.pdf

It's high time we started looking closer to home, rather than hoping to flag down or eavesdrop on industrious aliens 1480 light years away.

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 Post subject: Re: proxima fever!
PostPosted: Tue May 17, 2016 10:37 am 
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Planets at Alpha Centauri?

http://www.seti.org/seti_institute/Plan ... a_Centauri

Quote:
Using numerical simulations, Billy Quarles and Jack Lissauer have shown that a single Earth-mass planet in orbit around either star can remain within the system on a billion year timescale. This is important as other scientists at NASA Ames are designing a new space-based mission, ACESat, to directly image any terrestrial worlds lurking next door.

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 Post subject: Re: proxima fever!
PostPosted: Wed Jul 20, 2016 9:51 am 
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Miniature Space Telescope Could Boost Hunt for “Earth Proxima”

http://www.scientificamerican.com/artic ... ima-video/

Quote:
Ruslan Belikov and Eduardo Bendek, two scientists at NASA Ames Research Center, believe we may need to look no farther than the twin sunlike stars Alpha Centauri A and B some 4.4 light-years away. Extrapolating planetary prevalence per star from the current corpus of known worlds, they suggest that perhaps one in two sunlike stars may harbor a rocky planet in the not-too-hot, not-too-cold “habitable zone” where liquid water—and thus life as we know it—could conceivably exist. Presuming that these 50–50 odds hold true not only for singleton suns but also for both members of a binary star system, that would mean there is a roughly 75 percent chance that Alpha Centauri harbors a potentially habitable planet.


Link to film on the linked page.

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 Post subject: Re: proxima fever!
PostPosted: Tue Aug 02, 2016 8:16 pm 
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New Telescope to Search for Life Around Alpha Centauri

http://mysteriousuniverse.org/2016/08/n ... -centauri/

Quote:
A new documentary reveals that a group of scientists and astronomers is building a telescope with a singular purpose – to look for life on a planet orbiting Alpha Centaur.


Mission Centaur

http://missioncentaur.org/

Quote:
The film focuses on humanity’s search for habitable exoplanets around Alpha Centauri and actually features a few scientists on Mission Centaur’s scientific advisory board. It also briefly touches on our specific mission and the impact that finding an “Earth Proxima” might have.

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 Post subject: Re: proxima fever!
PostPosted: Fri Aug 12, 2016 6:51 pm 
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GUYS GUYS GUYS

New, Nearby Earth-Like Planet Discovered

http://www.seeker.com/new-nearby-earth- ... 97349.html

Source (auf deutsch)

Wissenschaftliche Sensation: Mögliche zweite Erde in unserer Nachbarschaft entdeckt

http://www.spiegel.de/wissenschaft/welt ... 07405.html

Here's the translation for the excited, and lazy.

Quote:

Proxima Centauri is from our point of closest fixed stars, only 4.24 light years distant red dwarf. As the SPIEGEL learned , astrophysicists have discovered that these neighboring star is orbited by a hitherto unknown planet.

The yet unnamed planet is presumably Earthlike and moves apparently so favorable distance to Proxima Centauri, that on its surface liquid water could exist - which is an important requirement for the emergence of life.

Never before Scientists came across a possible second Earth, which is so close. End of August, will European Southern Observatory Eso announce the scientific sensation.

The demand was met reflecting telescope, which operates the Eso on the mountain La Silla in the Chilean Atacama desert. "Finding the small celestial bodies, a lot of hard work was" confirmed an involved in the search astrophysicist SPIEGEL. "We were moving at the limit of measurement is technically feasible."

In previous observations, it gave only hints of a small companion Proxima Centauri circle round, according to a previous report of Eso to the project. Then the astronomers focused their measurements on it to explore variations in the orbital motions of the star, in more detail.

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 Post subject: Re: proxima fever!
PostPosted: Fri Aug 12, 2016 6:51 pm 
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Lest there be any skepticism on the sources, phys.org picked up the story.

http://phys.org/news/2016-08-scientists ... lanet.html

Must be a compelling, trustworthy source.

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 Post subject: Re: proxima fever!
PostPosted: Wed Aug 17, 2016 6:22 pm 
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Let's jump the gun here.

What life would be like on an Earth-like planet around Proxima Centauri

http://www.cnet.com/au/news/why-an-eart ... arth-like/

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 Post subject: Re: proxima fever!
PostPosted: Tue Aug 23, 2016 12:22 pm 
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ESO ANNOUNCEMENT TO ADDRESS REPORTS OF PROXIMA CENTAURI EXOPLANET

http://www.universetoday.com/130419/eso ... exoplanet/

Please note the article's author seems to be confused, or challenged.

Quote:
The press conference will start at 1 p.m. Central European Time (CET) – 1 p.m. EDT/10 a.m. PDT. And you bet that we will be reporting on the results shortly thereafter! Stay tuned!


So 8 a.m. EDT!

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 Post subject: Re: proxima fever!
PostPosted: Tue Aug 23, 2016 12:44 pm 
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BetaDraconis wrote:
Please note the article's author seems to be confused, or challenged.

Quote:
The press conference will start at 1 p.m. Central European Time (CET) – 1 p.m. EDT/10 a.m. PDT. And you bet that we will be reporting on the results shortly thereafter! Stay tuned!

So 8 a.m. EDT!

Actually, it will be at 7:00 am EDT (4:00 am PDT). CET is UT+1 and we're at UT-5 in the Eastern Time Zone, so the differential is 6 hours (we're both on Daylight Time now, so that cancels out).

In any case, I wouldn't get up at 7 am, or even 8 am, just to hear yet another exoplanet discovery <g>.

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 Post subject: Re: proxima fever!
PostPosted: Wed Aug 24, 2016 1:17 pm 
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A terrestrial planet candidate in a temperate orbit around Proxima Centauri

http://www.nature.com/nature/journal/v5 ... 19106.html

Relevant link: http://sci-hub.cc/10.1038/nature19106

If necessary, I will email the PDF. Hit me up.

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 Post subject: Re: proxima fever!
PostPosted: Wed Aug 24, 2016 8:38 pm 
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Proxima Centauri Link Bonanza in several posts since the forum only allows two links per comment.

The Earth Next Door - http://www.scientificamerican.com/artic ... next-door/ Scientific American

An Exoplanet Too Far - http://www.newyorker.com/tech/annals-of ... et-too-far New Yorker

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 Post subject: Re: proxima fever!
PostPosted: Wed Aug 24, 2016 8:39 pm 
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One Star Over, a Planet That Might Be Another Earth - http://www.nytimes.com/2016/08/25/scien ... tauri.html New York Times

Proxima Centauri Planet - http://www.centauri-dreams.org/?p=36210 Centauri Dreams

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 Post subject: Re: proxima fever!
PostPosted: Wed Aug 24, 2016 8:42 pm 
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A 'Habitable' World Around Proxima Centauri May Not Be Very Earth-Like - http://www.forbes.com/sites/startswitha ... ldnt-mean/ Forbes

Interstellar probes will be eroded on the way to Alpha Centauri - https://www.newscientist.com/article/21 ... -centauri/ New Scientist

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 Post subject: Re: proxima fever!
PostPosted: Thu Aug 25, 2016 8:10 am 
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Why did it take so long to find Proxima b?

http://www.space.com/33845-why-proxima- ... -find.html

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 Post subject: Re: proxima fever!
PostPosted: Thu Aug 25, 2016 9:05 am 
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What's it like on our neighbor Proxima b?

http://www.space.com/33841-living-on-proxima-b.html

Lots of speculation.

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 Post subject: Re: proxima fever!
PostPosted: Thu Aug 25, 2016 5:27 pm 
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Fly Through the Proxima Centauri System

http://www.seeker.com/fly-through-the-p ... 95929.html

Sadly it's just a video, not a video game. If you have Celestia and want to futz with its code and settings, one can create a simulation of the Proxima Centauri system. Celestia is cross-platform. Also consider playing around with Space Engine, it's free and supposedly accurate but it's Windows-only. Also consider Universe Sandbox and Universe Sandbox 2 for space simulations and such.

For the grandparents who might be browsing this thread, don't get No Man's Sky for your grandchildren. It lacks the promised features and it's buggy.

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 Post subject: Re: proxima fever!
PostPosted: Fri Aug 26, 2016 2:23 pm 
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Obligatory infographic regarding Proxima b.

http://www.space.com/33872-proxima-b-cl ... aphic.html

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 Post subject: Re: proxima fever!
PostPosted: Sat Aug 27, 2016 7:40 pm 
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Y’all Need to Chill About Proxima Centauri b

http://www.wired.com/2016/08/need-chill ... entauri-b/

#1 Sara Scoles isn't the boss of me.

#2 Read if you want cold water spilled in your lap

#3 And now a bit of fun

Meet the (alleged) aliens of Proxima b

http://www.cnet.com/au/news/the-decades ... ke-planet/

"For seven years beginning in 1957, a team of psychologists in California had lengthy conversations with a charming and friendly alien from somewhere in the vicinity of Alpha Centauri who came to be known simply as 'Hands.'"

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 Post subject: Re: proxima fever!
PostPosted: Sat Aug 27, 2016 7:43 pm 
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Our Nearest Star Has a Planet, and These Are the Ways It Could Be Habitable

http://nautil.us/blog/our-nearest-star- ... -habitable

Quote:
So the punch line is that Proxima b can retain liquid water on its surface for a wide range of conditions—but only if it held on to some water while its star went through its youthful tantrums. Another potential obstacle to habitability is the amount of energetic radiation Proxima b receives compared to Earth: 250 times more X-rays and 30 times more extreme ultraviolet light. What this means for the planet’s atmosphere is unclear, but it’s probably not a deal-breaker for life.


Plenty of graphs and descriptions of what Proxima b might be like.

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 Post subject: Re: proxima fever!
PostPosted: Mon Aug 29, 2016 5:33 pm 
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Best image of Alpha Centauri A and B

http://astronomynow.com/2016/08/29/best ... i-a-and-b/

Quote:
The NASA/ESA Hubble Space Telescope has given us this stunning view of the bright Alpha Centauri A (on the left) and Alpha Centauri B (on the right), flashing like huge cosmic headlamps in the dark. The image was captured by the Wide Field and Planetary Camera 2 (WFPC2). WFPC2 was Hubble’s most used instrument for the first 13 years of the space telescope’s life, being replaced in 2009 by WFC3 during Servicing Mission 4. This portrait of Alpha Centauri was produced by observations carried out at optical and near-infrared wavelengths.

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 Post subject: Re: proxima fever!
PostPosted: Wed Aug 31, 2016 9:39 pm 
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Proxima b: 5 Things You Need to Know about the New Earth-Like Planet

http://www.scientificamerican.com/artic ... ke-planet/

It's a podcast.

A Closer Look at Proxima b

http://www.centauri-dreams.org/?p=36294

A solid summary of Avi Loeb's recent paper on telling if Proxima b is tidally locked or not.

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 Post subject: Re: proxima fever!
PostPosted: Tue Sep 06, 2016 6:14 pm 
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The Perils of Proxima

https://backalleyastronomy.blogspot.com ... oxima.html

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 Post subject: Re: proxima fever!
PostPosted: Tue Sep 06, 2016 11:27 pm 
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Hill Star Map - Badly Out of Date

https://kevinrandle.blogspot.com/2016/0 ... -date.html

Kevin Randle, UFO historian, looks at the provocative star map drawn by Betty Hill. Back in 1961, Barney and Betty Hill claim to have been abducted by aliens causing quite a stir. Notable about the incident was Betty Hill's description of undergoing amniocentesis at the hands of her alien abductors before the procedure became common practice to ensure the mother and her baby's health during gestation. She drew a star map, supposedly including Zeta Reticuli, which nearly matches up with current observations of that region of sky according to Marjorie Fish.

With the discovery of Proxima Centauri b, there are plenty of problems with this issue and Kevin picks them apart one-by-one.

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