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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

The Visible Human Project

Researchers created a dataset of photos of thousands of paper-thin slices of a male and female cadaver to create one of the most detailed datasets about the human body.

a week ago • 1 votes
Anne Heggli, Jonathon Keats, & Adam Csank: Art & Science at the Nevada Bristlecone Preserve

In a remote corner of the driest state in the country, Anne Heggli's team has been keeping watch over some of Earth’s oldest beings. Since 02012, Heggli’s NevCAN network has recorded conditions at the Nevada Bristlecone Preserve every eight minutes. The result is more than 120 million data points and a high-resolution portrait of how a bristlecone pine thrives. Paleoclimatologist Adam Csank showed how bristlecone microcores reveal the droughts and floods these trees survived long before us, a history that fine-tunes models of what's ahead. Artist and philosopher Jonathon Keats went further. “The most accurate clock,” he said, “is a tree.” His monumental artwork Centuries of the Bristlecone keeps bristlecone time, a clock calibrated to the trees' own growth over millennia. Together, Heggli, Keats and Csank made the case for long science: patient, continuous observation that will help us answer future urgent questions. “Data at this resolution,” Csank said, “is like a Rosetta Stone” for understanding nature’s resilience. At fourteen years young, the bristlecone record is just beginning, Heggli said, but it already holds the key to questions like these: How will bristlecones adapt? What happens when the droughts and floods they've weathered for millennia arrive faster and more frequently? “We can't answer the questions if we're not watching,” said Csank. “We are the stewards of this data,” Heggli concluded. “This is why we need long science.”

2 weeks ago • 1 votes
In praise of questions

Prende y se apaga sola, sale después de hora. CHARLY GARCÍA La máquina de ser feliz I’ve learned to tolerate them, and sometimes even like them, but Zoom meetings are weird. Even in familiar contexts: I have weekly check-ins with … Continue reading →

2 weeks ago • 1 votes
A weird corner of healthcare: indemnity insurance | Out-Of-Pocket

the economics are especially interesting

2 weeks ago • 1 votes
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