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Watch live: SpaceX to launch its second batch of Starlink satellites

SpaceX has readied a Falcon 9 rocket and a second set of 60 Starlink satellites for a launch on Monday morning. The...

Space cowboy successes, and failures, ahead of The Mandalorian’s Disney+ launch

What's the likelihood that the next big "space western" film or TV series will succeed? The concept sounds great on paper: two...

A personality quiz for fans of math and history: Are you a Newton or a Leibniz?

Math teacher Ben Orlin writes and draws the (aptly named) blog Math With Drawings and is the author of a new book, ....

Limits, schlimits: It’s time to rethink how we teach calculus

His first book, , after Orlin's blog of the same name, was published last year. It included such highlights as placing a discussion of...

Earth’s core too hot ‘n heavy for oxygen, but may have rusty coating 

We live on the most comfortable of planets. It may not be too visible, but the Earth's magnetic field plays a critical role...

RunCode challenge returns with coding, pwning puzzles—and prizes

It's Veterans Day weekend again, which means it's time for the return of RunCode, an annual capture-the-flag style programming and information security competition run...

Great apes pass a false-belief test, hinting at a theory of mind

Theory of mind is the recognition that others have mental states, just as you do. It is the ability to put yourself in...

Dealmaster: A number of early Black Friday tech deals are available today

Greetings, Arsians! The Dealmaster is checking in for a special weekend edition of our deals roundup, since several early Black Friday deals on...

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