Brent Barbee discusses how he figures out which asteroids astronauts could fly to, and the fun of solving problems using computers.
Dr. Nancy Chabot tells us about the MESSENGER mission, which explored the closest planet to the sun.
Rob Landis talks about operating the Hubble Space Telescope, and the time he had a front-row seat to a dramatic interplanetary collision.
Dr. Kirkpatrick talks about stars so cold you could touch them without getting burned.
Dr. Sarah Noble talks about the LADEE mission and an epiphany she had in graduate school.
Dr. Abby Fraeman talks about Phobos and Deimos, the mysterious moons of Mars.
Dr. Joseph Masiero talks about the "secret" property of light, and how astronomers use it to learn about exoplanets and asteroids.