Guest Thinkers — February 16, 2011

Video – 21st century schools (Stephen Heppell)

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Thanks to Wes Fryer, I found this new video from Dr. Stephen Heppell on 21st century schools. Happy viewing!

The most surprising and impactful new stories delivered to your inbox every week, for free.

Circular astronomical image showing constellations and celestial objects labeled against a dark sky, reminiscent of a NASA PUNCH video sun corona visualization, with a timestamp of 2025-06-03 01:52 at the bottom left.

Video: NASA’s PUNCH mission sees the Sun’s corona in action

Launched in March, the PUNCH mission has viewed two incredible coronal mass ejections, tracking them farther from the Sun than ever before.

Starts With A Bang

How the Milky Way-Andromeda merger became so uncertain

For decades, astronomers have claimed the Milky Way will merge with Andromeda in ~4 billion years. Here’s why, in 2025, that seems unlikely.

Large crowd of well-dressed people socializing at an indoor event; "Substack" is projected on a wall above.

The Future

Why Substack will be the intellectual engine of the 21st century

The platform is a digital Royal Society for today’s greatest minds — and it could play an essential role in shaping the next civilization.

A silhouette of a crowned figure holding a scepter and a red bag, with various coins spilling out against a blue background.

Mini Philosophy

Why the people who actually drive history aren’t in the textbooks

Follow the money and you’ll follow history.

Starts With A Bang

Science’s best answer to “where did the Universe come from?”

Perhaps no existential question looms larger than that of our ultimate cosmic origins. At long last, science has provided the answers.

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