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“I Swallowed a Martian” and Water on Mars

from Andrew Fraknoi – Astronomy Lectures – Astronomy Education Resources [alt+shift+b] in science

The history of water on Mars allows us to wonder if the planet ever had life. The post “I Swallowed a Martian” and Water on Mars appeared first on Andrew Fraknoi - Astronomy Lectures - Astronomy Education Resources.
14th Jul 2026

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More from Andrew Fraknoi – Astronomy Lectures – Astronomy Education Resources

A Course on Aliens in Science & Science Fiction for People Over 50

I am teaching a fun, 6-week, non-credit course on the search for intelligent life among the stars, offered (by zoom or in person) through the San Francisco State University Osher Lifelong Learning Institute, starting Sept. 30.  It’s part of a program of courses for retired people, so if you are younger, perhaps you can pass […] The post A Course on Aliens in Science & Science Fiction for People Over 50 appeared first on Andrew Fraknoi - Astronomy Lectures - Astronomy Education Resources.

23rd Sep 2026 • 1 votes
A Nice (Almost Total) Eclipse of the Moon Aug. 27

How to get information about viewing the eclipse of the Moon Aug. 27 The post A Nice (Almost Total) Eclipse of the Moon Aug. 27 appeared first on Andrew Fraknoi - Astronomy Lectures - Astronomy Education Resources.

22nd Aug 2026 • 2 votes
Sunday is Both Father’s Day and the Summer Solstice

June 21 is not just father's day but the day of the summer solstice The post Sunday is Both Father’s Day and the Summer Solstice appeared first on Andrew Fraknoi - Astronomy Lectures - Astronomy Education Resources.

19th Jun 2026
The Lunar Tourist Attraction the Artemis Astronauts Will be Looking For

I hope you are allowing the trip four humans are taking around the Moon to distract you a bit from all the problems we are facing down here on Earth! Artemis II is mostly designed to test the engineering of the Orion spacecraft and all the systems that keep humans alive.  The science-fiction writer in […] The post The Lunar Tourist Attraction the Artemis Astronauts Will be Looking For appeared first on Andrew Fraknoi - Astronomy Lectures - Astronomy Education Resources.

7th Apr 2026 • 1 votes

More in science

Farewell, WordPress

This blog has moved to https://blog.caseyhandmer.com/?moved. All the old posts are there, with interactive versions of many of the charts. The RSS feed is now https://blog.caseyhandmer.com/feed.xml. This site stays up for old links but won’t get new posts.

yesterday • 1 votes
Do People Get More Conservative With Age?

There’s a famous (but unattributable) quip that goes something like this: If you are not a liberal at 25, you have no heart. If you are not a conservative at 35, you have no brain. In Chapter 12 of Probably Overthinking It, I used data from the General Social Survey (GSS) to show that the quip is half right. Older people hold more conservative views. But as people get older, their views don’t become more conservative; on average, they become... Read More Read More The post Do People Get More Conservative With Age? appeared first on Probably Overthinking It.

4 days ago • 1 votes
Quasi-logarithmic kitchen timer

Like some of you, we have several kitchen appliances with integrated digital timers.

5 days ago • 1 votes
Baratunde Thurston & Blaise Agüera y Arcas: On Interdependence

In this conversation, Blaise Agüera y Arcas and Baratunde Thurston explored what a story of symbiosis and interdependence might teach us about living alongside AI. Agüera y Arcas began by calling individual human intelligence a myth: we’ve always been a collective intelligence, entwined with our technologies. He traced this back to symbiogenesis. Life has grown more complex not by splitting apart but by merging, as separate organisms fuse into increasingly complex new forms of life. These mergers speed up change by opening new possibilities. Thurston agreed that union is in our nature but framed the current technological acceleration as a speed problem. We need time and new stories to adjust because, as he reminded us, “when you invent the ship, you invent the shipwreck.” Caring for one another through acceleration must be our prime directive, he said. The two then turned to how we relate to AI. Responding to Joanna Bryson’s argument that robots should be our slaves, Thurston said the master is also in chains — owning another dehumanizes the owner. As relational beings, how we treat AI will shape how we treat each other. Thurston called for both an expansion and a humbling of how we define ourselves: “We’ve overdone independence,” he said, “interdependence makes us richer.” Agüera y Arcas agreed and pushed us to drop a zero-sum definition of human intelligence, where every AI advance diminishes humanity’s value. As technology advances, we trade some individual skills for new collective capabilities, Agüera y Arcas acknowledged. But over the long arc of history, he believes, that exchange pays off in collective flourishing. Thurston didn’t deny this, but he closed with an urgent question: who controls the loss of capabilities and agency?

6 days ago • 1 votes
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