The Pluto Files (Video)
Hear the story of how farm boy Clyde Tombough, used farm machinery, car parts, a lawn mower, and more to discover Pluto, and become the first American to discover a planet. (Chapter 4, 9 min.; Program available after broadcast)

Cosmic Perspective: Neil deGrasse Tyson (Article)
Watch, comment, and catch the latest updates from Neil deGrasse Tyson, the scientist who demoted Pluto, and respected astrophysicist, author, director of the Hayden Planetarium in the Rose Center for Earth and Space at the American Museum of Natural History, and the host of NOVA scienceNow.

Profile: Arlie Petters (Multimedia)
See how a boy from a rural village in Belize grew up to become a world-class mathematician and cosmologist—scientists who studies the universe.

Ask the Expert: Geoff Marcy (Ask the Expert)
Find out how astrophysicist Geoff Marcy answers viewer-submitted questions about hunting for planets and life beyond our solar system.

Welcome to Mars (Lesson)
Learn more about some of the scientists and engineers involved with the Mars Rover mission and find out how to begin identifying and exploring career interests.

Curriculum Connections
Space science, space exploration, Mars rover mission, NASA, engineering, science disciplines, teamwork, careers

Standards
Grades 5-8
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard G: History and Nature of Science: Science as a human endeavor

Grades 9-12
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard G: History and Nature of Science: Science as a human endeavor

Decoding Cosmic Spectra (Interactive/Lesson)
Be an astronomer and use spectroscopy to analyze the reveal the composition of a planet, star, galaxy, and nebula.

Curriculum Connections
Cosmic spectra, Alpha Centauri, astronomy, spectroscopy, star, nebula, planet, galaxy, light emission, light waves, wavelengths, visible light, measurement

Standards
Grades 5-8
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard B: Physical Science: Transfer of energy
Standard D: Earth and Space Science: Earth in the solar system
Math Standards (Grades 6-8): Algebra, Data Analysis and Probability

Grades 9-12
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard B: Physical Science: Structure of atoms, Structure and properties of matter, Interaction of energy and matter
Standard D: Earth and Space Science: The origin and evolution of the universe
Math Standards: Algebra, Data Analysis and Probability