A tour to the universe

Content focus：
Overviews of every planet in our solar system, plus the sun, the moon, comets, asteroids and meteors．
Star charts of every constellation [both hemispheres) and tips on observing the planets and stars, whether with binoculars, telescopes or the naked eye．
The Great Pluto War, the discovery of Eris and the classification of dwarf planets．
Latest discoveries from the Mars rovers and the Cassini-Huygens mission to Saturn．
The most recent and important theories about the formation of galaxies, the Big Bang,dark matter, dark energy and the future of space exploration．

Who is suitable to listen to：
People who are interested in astronomy and have a certain basic English knowledge．

Update frequency：
No fixed time．