Communion Of Dreams


Huh.

This is not a drill:

An international team of scientists from the Search for Extraterrestrial Intelligence (SETI) is investigating mysterious signal spikes emitting from a 6.3-billion-year-old star in the constellation Hercules—95 light years away from Earth. The implications are extraordinary and point to the possibility of a civilization far more advanced than our own.

The unusual signal was originally detected on May 15, 2015, by the Russian Academy of Science-operated RATAN-600 radio telescope in Zelenchukskaya, Russia, but was kept secret from the international community. Interstellar space reporter Paul Gilster broke the story after the researchers quietly circulated a paper announcing the detection of “a strong signal in the direction of HD164595.”

Huh.

Even if it is a signal directly beamed at us, it would require a Kardashev Type I civilization (about 200 years beyond where Earth is currently). If it is just beaming off in all directions, it’s another whole magnitude of power — about a Kardashev Type II.

Huh.

Yeah, I’d say it warrants paying attention to.

 

Jim Downey



All alone in the dark of night?

Perhaps:

Earth could be unique among 700 quintillion planets in the Universe, study finds

So much of humanity’s astronomical research is based around the notion of finding something like us out there – whether that’s looking for environments that could sustain life, ranking planets in terms of their potential habitability, or comparing distant worlds to our own.

But what if – statistically speaking – the odds are stacked against us finding another planet even remotely like Earth? That’s the thinking behind a new study by an international team of researchers, which has taken what we know about the exoplanets that lie outside our Solar System and fed the data into a computer model.

Their resulting calculations, designed to simulate how galaxies and planets have formed over some 13.8 billion years, produces a “cosmic inventory” of terrestrial planets – and one in which Earth very much looks to be unique.

 

Perhaps not:

Jon nodded. “Thanks. So what’s the meeting about? What happened?”

“Dr. Jakobs tried to contact you this morning. After hearing her message, I bounced it up to Director Magurshak. They found something on Titan. An artifact.” Seth paused, looked down at his hands, “a nonhuman artifact.”

Jon sat there for a moment, trying to digest what Seth said. According to what pretty much everyone thought, it wasn’t possible. SETI, OSETI, META and BETA had pretty much settled that question for most scientists decades ago, and twenty years of settlement efforts throughout the solar system hadn’t changed anyone’s mind. Even with the Advanced Survey Array out at Titan Prime searching nearby systems for good settlement prospects, there had never been an indication that there was an intelligent, technologically advanced race anywhere within earshot. Seth knew Jon well, didn’t let the silence wait. He looked back up, eyes level and unblinking, “It isn’t a hoax. The artifact is definitely nonhuman, or at least non-contemporary human. Mr. Sidwell found it out near his base. Dr. Bradsen will have as much a report on it as is available, which isn’t much.”

 

Jim Downey



Out there … and down here.

Via Laughing Squid, a nice little animated exploration of the Fermi Paradox:

(Does not contain spoilers for Communion of Dreams. 😉 )

* * *

Been a busy week. Part of it was putting in my garden:

Garden

(That’s just the tomato plants — the super-hot peppers will go in next week.)

Part of it was a MASSIVE job converting a 16 x 16 storage space into the beginnings of a workshop:

Shop

(There’s still lots to do, but man, what a change from being hip-high in grungy boxes and scattered junk!)

And part of it was we have a new addition to the family:

Kitten

(He’s just 6 weeks old, entirely too cute, bold & adventurous, and tiny. For now. No name yet, though given his grey color I suggested perhaps we should go with Dukhat … )

* * *

I’m just now finishing up the first major revision to the working copy of St Cybi’s Well. I already have a couple of people lined up to take a look at it with fresh eyes, but if anyone else is interested also having a preview, leave a comment and I’ll get in touch with you.

Lastly: for Mother’s Day weekend, the Kindle edition of Her Final Year will be available for free. Check it out, download it, share it with others!

Jim Downey



“You’re oversharing again, Earth.”

Seth Shostak, on the topic of how to introduce ourselves to our neighbors:

A better approach is to note that the nearest intelligent extraterrestrials are likely to be at least dozens of light-years away. Even assuming that active SETI provokes a reply, it won’t be breezy conversation. Simple back-and-forth exchanges would take decades. This suggests that we should abandon the “greeting card” format of previous signaling schemes, and offer the aliens Big Data.

For example, we could transmit the contents of the Internet. Such a large corpus — with its text, pictures, videos and sounds — would allow clever extraterrestrials to decipher much about our society, and even formulate questions that could be answered with the material in hand.

 

While I still agree with Stephen Hawking on the idea of ‘active SETI’, I think that there’s merit in the idea of exposing other nearby civilizations to what we’re really like, warts and all. Because as soon as they decoded our transmissions well enough to understand the comments section of pretty much any major site on the web, they’d either completely wall off our solar system* and post warnings around it or just trigger our sun to go supernova. Either way, we’d never know what happened, and the rest of the galaxy would be safe …

 

Jim Downey
*gee, that’d make an interesting premise for a SF novel, doncha think?



Bits & pieces.

A number of unrelated items which I thought I’d share …

* * *

Astronomers Find Ancient Earth-Sized Planets in Our Galactic Backyard

Astronomers have announced what may be the most interesting exoplanet discovery yet made: five planets, all smaller than Earth, orbiting a very ancient star. And I do mean ancient: Its age is estimated to be more than 11 billion years old, far older than the Sun. These are old, old planets!

* * *

Perhaps you see the problem. If planets like Earth formed 11 billion years ago, and happened to form at the right distance for more clement conditions on the surface, life could have arisen long enough ago and started building spaceships long before the Earth even formed! They’d have planted their flags on every Earth-sized habitable planet in the Milky Way by now.

Where are they?

Oh! Oh! I know! Pick me!!

* * *

Thanks to all who helped spread the word about the 3rd anniversary promotion! It was a modest success, with a little shy of 200 books downloaded world-wide, including through the following Amazon portals:

  • Australia
  • Canada
  • France
  • Germany
  • India
  • Japan
  • Netherlands (for the first time!)
  • UK
  • US

* * *

Via BoingBoing, turn your iPhone into a thermal imaging camera in just seconds:

Yeah, I mentioned using this kind of imaging tech in the current novel some time back.

* * *

Speaking of tech predictions, this is the first step in the sort of thing I envisioned for the cyberware of Communion of Dreams:

Flexible spinal cord implants will let paralyzed people walk

* * *

I mentioned earlier that evidently the Wikipedia elves are trying to decide whether to nuke my entry there. It seems that they’re still debating it. As I noted on the BBTI Facebook page a few days ago, in response to comment by a friend that it seems weird that BBTI is little more than a footnote in that entry:

It’s a fair point. I certainly am known much better around the world for being the driving force behind BBTI than I am for a fun little art stunt which was intended to happen and then fade from memory. I know that BBTI has had a much bigger and more lasting impact in the real world.

So, whether or not an entry about me should exist at all, if one does exist, shouldn’t it be more about my part in BBTI rather than as a “internet performance artist”? Hell, even my work as a book & document conservator has had a much larger real impact than ‘Paint the Moon’ did.

Just a thought, if anyone wants to do some editing …

* * *

This doesn’t have anything to do with any of the books or anything I’ve predicted (that I can remember), but it is a pretty cool bit of astronomy:

Gigantic ring system around J1407b much larger, heavier than Saturn’s

Astronomers at the Leiden Observatory, The Netherlands, and the University of Rochester, USA, have discovered that the ring system that they see eclipse the very young Sun-like star J1407 is of enormous proportions, much larger and heavier than the ring system of Saturn. The ring system – the first of its kind to be found outside our solar system – was discovered in 2012 by a team led by Rochester’s Eric Mamajek.

 

* * *
And here’s a useful video for anyone out there who may need to remove some rust from old equipment:

I knew that this could be done with electrolysis, but I didn’t realize that it was actually quite so simple. I am definitely going to set up to do this on a number of old tools and suchlike.

* * *

A nice bit of space exploration history:

The Challenge of the Planets, Part Three: Gravity

 

* * *

And I think I will leave it at that for now.

 

Jim Downey



Location, location, location.

It really does seem to be a pretty universal law:

On the role of GRBs on life extinction in the Universe

As a copious source of gamma-rays, a nearby Galactic Gamma-Ray Burst (GRB) can be a threat to life. Using recent determinations of the rate of GRBs, their luminosity function and properties of their host galaxies, we estimate the probability that a life-threatening (lethal) GRB would take place. Amongst the different kinds of GRBs, long ones are most dangerous. There is a very good chance (but no certainty) that at least one lethal GRB took place during the past 5 Gyr close enough to Earth as to significantly damage life. There is a 50% chance that such a lethal GRB took place during the last 500 Myr causing one of the major mass extinction events. Assuming that a similar level of radiation would be lethal to life on other exoplanets hosting life, we explore the potential effects of GRBs to life elsewhere in the Galaxy and the Universe.

 

What that means is summed up in this article. Here’s the conclusion:

Astronomers have long known that the Earth occupies a unique position in the solar system that allows life to flourish. This idea of a habitable zone now allows them to focus search for exoplanets that might also have conditions that are right for life. Now they can take this further by excluding inhospitable regions of the galaxy, and searching only those stars and galaxies that exist in the universe’s habitable zones.

 

Of course, that’s just for life as we know it

 

Jim Downey

 



“It’s a way to frame the problem,”

As something of a follow up to my last post, there’s a great little item about the development of the Drake equation over on National Geographic. Here’s a good passage:

It’s this kind of guesswork that tends to inflame the Drake equation’s critics, those who complain that the equation isn’t predictive, is too open-ended, and doesn’t provide any answers. But “predictive” isn’t really what Drake ever intended.

“It’s a way to frame the problem,” says MIT astrophysicist Sara Seager, about the equation. “In science, you always need an equation—but this isn’t one you’re going to solve. It just helps you dissect everything.”

Definitely worth reading, as well as thinking about.

Jim Downey