space travel

A discussion of black holes with Stephen Colbert.

Interview on WNYC's Brian Lehrer Show about life, the Universe, and everything.

Things space zealots want to be true but simply aren’t. And things they wish were not true, but simply are.

An exposition of all the ways objects can move under the influence of gravity.

Space engineers are looking for new ways to power spacecraft, especially once they’re launched into orbit. Advances in space propulsion technology, including the recent Cosmos 1 mission, was designed to use sails powered by the pressure of sunlight.

How the frontier of propulsion research can transform the future of space exploration. Part II of “Fueling Up”

The role of propulsion as the key to space travel.

When Copernicus shifted the center of all creation from this planet to the sun, he set a chain of events in motion. In this episode, we discuss the Copernican Principle, which says, if you think it's all about you then you are probably wrong.

Reviving the debate about whether it is better to send people, robots, or some combination of both into space.

A sensitive reflection on the Columbia Shuttle tragedy and its implications for the future of space exploration.