All Videos — March 30, 2011

Why Energy Independence Is So Crucial

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President Obama announced a plan to cut dependence on foreign oil by one-third by 2021. Retired four-star general Wesley Clark explains just how detrimental our addiction to oil is and posits some strategies to mitigate it.

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

A composite image showing a galaxy with red circles marking stars on the left and multicolored expanding rings with Earth on the right, all set against a grid background, illustrating concepts like Hubble tension studied by Wendy Freedman.

Starts With A Bang

Is the Hubble tension real? Exclusive interview with Wendy Freedman

Different methods of measuring the Universe’s expansion rate yield high-precision, incompatible answers. But is the problem robustly real?

An artist's rendering of an alien planet and a red star.

Starts With A Bang

The evidence for biosignatures on K2-18b is flimsy, at best

A Cambridge-based team claims to find molecules on an exoplanet that are only produced by life on Earth. Don’t fall for the unfounded hype.

Starts With A Bang

Ask Ethan: What right do we have to colonize other worlds?

In all the known Universe, Earth is the only planet known to have native life. What should guide us in expanding humanity beyond our world?

An illustration of a Martian Revolution showcases a colony with astronauts tending to plants in a greenhouse embedded in the surface, under a red sky with two suns.

The Future

Mike Duncan chronicles the history of the future Martian Revolution

Most people think that writing fantasy or science-fiction requires a strong imagination. Podcast host Mike Duncan shows a knowledge of real-world history is just as important.

A graph titled "The Long Boom 2000-2025" shows intersecting curves from 1975 to 2025, depicting a transition from an old to a new world. Text reads "I was here" at the intersection around 2005.

The Future

A dozen reasons to read Peter Leyden at this critical juncture in history

The latest from Peter Leyden’s “The Great Progression: 2025 to 2050”, an essay series published by Freethink.

Up Next

Guest Thinkers

A Good Idea I Hope Will Catch On: The Journalists’ Wall of Shame

With koanic brilliance, Robin Sloan recently summarized the difference between last century’s old command-and-control journalism and today’s. It was, of course, a tweet: “The way to cover big news in […]