Where are we? Where is someplace else? And how do I get there from
here? These are questions we need to answer both on the Earth and in
the sky to assign a location to a place or celestial object on the
surface of a sphere. This lecture includes a review of angular units
and the terrestrial system of latitude and longitude on the spherical
Earth. We the ... Show More
Sep 2007
Lecture 08: The Phases of the Moon
What are the Phases of the Moon? This lecture introduces the Moon and describes the monthly cycle of phases. Topics include synchronous rotation, apogee and perigee, the cycle of phases, and the sidereal and synodic month. Recorded 2007 Sep 28 in 1000 McPherson Lab on the Columbu ... Show More
42m 34s
Jul 2019
Cosmic Queries – Summer School
<p>The sun is out, the weather is warm, and summer school is in session! Neil deGrasse Tyson, co-host Matt Kirshen, and astrophysicist Charles Liu answer fan-submitted questions on mathematics, the Big Bang, the laws of physics, neutrinos, relativity, Pluto, the smell of the Milk ... Show More
50m 4s
Mar 2025
Exoplanet Discovery, Dark Energy Evolution
SpaceTime Series 28 Episode 37
The Astronomy, Space and Science News Podcast
Exciting New Exoplanet Discovery, Evolving Dark Energy, and Insights into the Moon's Magnetic Field
In this episode of SpaceTime, we uncover the discovery of a potential new exoplanet, TOI 2818C, located ... Show More
27m 27s
Aug 2022
On Edwin Hubble’s "The Realm of the Nebulae"
Until the publication of Edwin Hubble’s 1936 book, The Realm of the Nebulae, astronomers believed that the Milky Way was the only galaxy in the universe. Hubble infinitely expanded our understanding of the cosmos and showed that what scientists thought was everything, was really ... Show More
38m 32s
Jan 2025
Charting the Architecture of the Universe & Human Life | Dr. Brian Keating
In this episode, my guest is Dr. Brian Keating, Ph.D., a cosmologist and professor of physics at the University of California, San Diego. We discuss the origins of the universe and how humans have used light and optics to understand where and how life on Earth emerged.
We explor ... Show More
3h 7m