Space
Feature: Dr Charles Elachi - Exploring the Unknown
NASA space explorer Dr Charles Elachi, who led the recent mission to Mars with a rover called Curiosity. Audio
Galactic Collisions
Did the Milky Way and the Andromeda Galaxy collide about 10 billion years ago - and consequently, is our current understanding of gravity fundamentally wrong? With astronomer Hongsheng Zhao from… Audio
Space Food
New Zealander Bryan Caldwell is trying to understand how our sense of taste and smell changes in space in order to design tastier foods for long-distance space missions. Audio
Lawrence Krauss - the plausible universe
Foundation Professor in the School of Earth and Space Exploration, Director of the Origins Project at Arizona State University, and author of A Universe from Nothing. Audio
Marcus Chown: space science
Cosmology consultant of the New Scientist, author of a number of books and the Solar System iPad App. Audio