Showing posts with label SETI. Show all posts
Showing posts with label SETI. Show all posts

3 Mar 2017

TRAPPIST-1: Water? Life??

TRAPPIST-1's planets may support life: or not. We don't know. Not yet.

We're pretty sure that all seven are rocky worlds, like the Solar System's inner planets.

Three are in the star's habitable zone. The inner two definitely do not have one sort of atmosphere that would make life as we know it impossible.

Even if we don't find life there, we'll learn a great deal while looking.

More at A Catholic Citizen in America.

23 Dec 2016

SETI: What If?

Contacting extraterrestrial intelligence, meeting people whose ancestors developed on another world, has been a staple of pulp fiction for generations.

Lately, it's become a matter for serious discussion. I'll be looking at an op-ed's take on how learning that we're not alone might affect folks with various religious beliefs. I'll also share what I expect: and what I don't....

More at A Catholic Citizen in America.

16 Dec 2016

Mars, Aliens, and SETI



I'd love to be talking about unambiguously artificial signals picked up by the Allen Telescope Array, or reports of a ship from beyond the Solar System settling into orbit around our moon.

But that hasn't happened, and probably won't. Not in my lifetime.

Instead, I'll talk about why I don't "believe in" extraterrestrial life; and do not assume that we are alone in the universe. That puts me in the third of folks who aren't sure, and I'll get back to that.

My 'Friday' posts are usually about more-or-less-current 'science news.' That won't happen this week. I've read a few interesting articles, and will be talking about them — after the Christmas-New Year's gymkhana is over.

This week I'm using material that didn't quite fit into an earlier post. I'll also talk about the Great Moon Hoax, Nicola Tesla and Martians; and what I think about life in the universe.

More at A Catholic Citizen in America.

2 Dec 2016

KIC 8462852 and Strange Stars

KIC 8462852, Tabby's Star, has been in the news recently. Scientists are pretty sure that something very large orbits the star, but haven't worked out what it is.

A few scientists, looking at the data, say that it's probably a really odd natural phenomenon: but that it might something built by folks who aren't human.

SETI, the Search for Extraterrestrial Intelligence, is still a science in search of a subject. But quite a few scientists are taking it seriously, which is why Berkeley SETI Research Center added few stars to the Automated Planet Finder's observing queue....

...What I say about SETI and science in general may take some explaining, if you're new to this blog. Basically, I think God is large and in charge; and that part of my job is appreciating God's work — not telling the Almighty how it should have been made...."

More at A Catholic Citizen in America.

16 Sep 2016

ESA's Gaia, HD 164695, and SETI

Scientists working with ESA's Gaia space observatory published the first part of a three-dimensional sky map this week. It'll be the most comprehensive all-sky survey done so far.

Not unexpectedly, this year's 'ET calling' headlines gave way to something slightly more down-to-Earth.

We may eventually pick up an artificial signal from the stars: but that burst of radio noise from the direction of HD 164695 was almost certainly due to a clerical error of sorts. It wasn't our first false alarm, and I doubt it will be the last.

More at A Catholic Citizen in America.

15 Apr 2016

Starshot, SETI, and the Universe

We may be within a generation of sending probes on flyby missions to other stars, high-energy jets from several distant galaxies all point in the same direction, and we're learning more about hot super-earths.

That sort of thing fascinates me, your experience may vary.

Meanwhile, SETI researchers will be checking out red dwarfs: which may be more promising places to look for neighbors than we thought.

More at A Catholic Citizen in America.

The Past: What We Know, What We Don'’t

I was writing about cancer and medical knowledge we've accumulated over the last few millennia, when I realized that I'd gotten mo...