Slow Down and Build Good Futures

Why is everyone in such a goddamned hurry?

While there are things we need to hurry up and deal with – climate change and fascism spring to mind – the efforts to address both those areas seem to be plodding along. Meanwhile, the broligarchs are trumpeting what they’re calling AI and claiming that their concept of the future – one built on bad reading of “Golden Age” science fiction – is just a few years away.

Their ideas range from living on Mars in the next five (ten? twenty? thirty?) years to destroying the Earth so we can live throughout the Universe by the trillions, which I assume they think will happen in their lifetimes, though perhaps only if the singularity happens or some other form of immortality comes along to give them (but probably not the rest of us) infinite time.

It’s easy to poke holes in their lack of knowledge of any area except computer programming (and maybe even that). Even their physics seems wonky and as for their biology – well, let’s be real: we humans evolved on and with this planet. There is no place else in the Universe where we will fit as well. Destroying the Earth is taking away our perfect home.

It may be possible for us to live on other planets or in orbiting satellites, but there are a lot of challenges to that, challenges rooted in our biology and in physics in general, not to mention in the fact that we really know so damn little. There’s so much more we need to understand before we set out to colonize the universe, perhaps starting with whether we should be colonizing anything at all.

cover of The WeaveI wrote a novel about that: The Weave, which is about humans finding a habitable planet with an asteroid belt chock full of useful elements, a planet that turns out to be inhabited by intelligent beings who do not have human levels of technology, but have something else. I was thinking about the conquistadors in the Americas when I wrote it – the working title was Seven Cities of Gold and there are names and jokes on that theme throughout.

It is science fiction, meaning it is a thought experiment about how humans should approach meeting other intelligent beings, especially given some of the disasters in our history of meeting each other here on Earth. I’ll just note that the Earth I imagined was not destroyed to make this exploration possible, though it was far from a perfect society.

Biology. Physics. Ethics. Just a few of the things we have to consider as we explore beyond our planet or, for that matter, build future systems here on Earth.

There’s no need to be in a hurry about space exploration.

We have a perfectly good planet to live on – even with the challenges presented by our lack of attention to climate change – and, in fact, we could and should spend a lot of time and effort making sure we keep it livable for all and improve the infrastructure that makes a good modern life possible without destroying the core systems that make any kind of life possible.

It would make sense to get a properly balanced system working on Earth before we try to live anywhere else, because by doing that we’d figure out exactly what is necessary. Continue reading “Slow Down and Build Good Futures”

What’s New With Voyager 1?

 Voyager 1 is no Longer Sending Home Garbled Data!

This aging and still-valuable spacecraft has been exploring the outer parts of the solar system since its launch in 1977, along with its twin sibling, Voyager 2. They each traveled slightly different trajectories. Both went past Jupiter and Saturn, but Voyager 2 continued on to Uranus and Neptune. They’re both now outside the solar system, sending back data about the regions of space they’re exploring.

Voyager 1 flew past Jupiter in March 1979, and Saturn in November 1980. After its close approaches to those two gas giants, it started a trajectory out of the solar system and entered interstellar space in 2013. That’s when it ceased to detect the solar wind and scientists began to see an increase in particles consistent with those in interstellar space.

These days, Voyager 1 is more than 157.3 astronomical units from Earth and moving out at well over 61,000 km/hour. It’s busy collecting data about the interstellar medium and radiation from distant objects. If all goes well, the spacecraft should continue sending back data for nearly a decade. After that, it should fall silent as it travels beyond the Oort Cloud and out to the stars.

Earlier this year, however, the teams attached to the Voyager 1 mission noticed that the spacecraft was sending weird readouts about its attitude articulation and control system (called AACS, for short). Essentially, the AACS was sending telemetry data all right, but it was routing it to the wrong computer, one that had failed years ago. This corrupted the data, which led to the strangely garbled messages the ground-based crew received.

Once the engineers figured out that the old, dead computer might have been part of the problem, they had a way forward. They simply told the AACS to switch over sending to the correct computer system. The good news was that it didn’t affect science data-gathering and transmission. The best news came this week: team engineers have fixed the issue with the AACS and the data are flowing normally again.

The ongoing issue with AACS didn’t set off any fault protection systems onboard the spacecraft. If it had, Voyager 1 would have gone into “safe mode” while engineers tried to figure out what happened. During the period of garbled signals, AACS continued working, which indicated that the problem was either upstream or downstream of the unit. The fact that data were garbled provided a good clue to related computer issues.

This adapted article appeared in Universe Today. Click through for the full thing.