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Intro Astronomy 2017. Class 14: Galaxies, the Universe, Life

Lecture 14 of Dr. Bruce Betts' 2017 online Introductory Planetary Science and Astronomy course covers galaxies (our place in the Milky Way, types of galaxies, Hubble Deep Field), the Universe (determining distances, expansion of the universe, Big Bang theory and evolution of the universe, WMAP and Planck results, dark matter, dark energy, neutrinos), and life in the universe (Earth life requirements, astrobiology, SETI). Recorded at California State University Dominguez Hills.


March for Science - The Planetary Post with Robert Picardo

March for Science participants join host Robert Picardo in support of space science and exploration in Washington, D.C.


Intro Astronomy 2017. Class 13: The Sun (cont.) and Stars

Lecture 13 of Dr. Bruce Betts' 2017 online Introductory Planetary Science and Astronomy course continues exploring the Sun (physical characteristics, zones, solar cycle, sunspots, flares, coronal mass ejections, fusion, etc.) and covers stars and stellar evolution (star types and colors, evolution, HR Diagrams, birth and death phases, white dwarfs, neutron stars, black holes). Recorded at California State University Dominguez Hills.


Intro Astronomy 2017. Class 12: Exoplanets, the Sun, and Solar Physics

Lecture 12 of Dr. Bruce Betts' 2017 online Introductory Planetary Science and Astronomy course covers exoplanets (planets around other stars) including discovery techniques, current knowledge and characteristics, and multi-planet systems. Lecture 12 also covers the Sun and solar physics. Recorded at California State University Dominguez Hills.


Intro Astronomy 2017. Class 11: The Outer Solar System

Lecture 11 of Dr. Bruce Betts' 2017 online Introductory Planetary Science and Astronomy course covers the heliosphere, Oort Cloud, light pressure, solar sails, solar effects, comets, origin of solar system, and the laws of planetary motion. Recorded at California State University Dominguez Hills.


Intro Astronomy 2017. Class 10: Neptune and Trans Neptunian Objects including Pluto and KBOs

Lecture 10 of Dr. Bruce Betts' 2017 online Introductory Planetary Science and Astronomy course covers the Neptune System, Transneptunian Objects (TNOs) including the Pluto System and Kuiper Belt Objects, and also covers the solar wind, aurorae, and the heliosphere. Recorded at California State University Dominguez Hills.


Intro Astronomy 2017. Class 9: Saturn and Uranus

Lecture 9 of Dr. Bruce Betts' 2017 online Introductory Planetary Science and Astronomy course covers the Saturnian System including atmosphere, interior, rings, and moons and introduces the Uranian system. Recorded at California State University Dominguez Hills.


Bill Nye's Open Letter to President Donald Trump

Bill Nye, CEO of The Planetary Society, and our Board of Directors present five recommendations to the Trump administration as it contemplates the future of the U.S. space program.


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