432: Geologic Ages of Mars – From Wet and Wild to Desolate Desert

AstronomyCast 173: The Herschel Space Observatory

17 Helmi 201030min

This week we continue the story of galaxy formation, learning how groups of galaxies come together to form the biggest structures around – galaxy superclusters. And when you look at the Universe at this scale, environment is everything.

11 Helmi 201027min

AstronomyCast 172: William Herschel

10 Helmi 201029min

AstronomyCast 171: Solar System Movements & Positions

10 Helmi 201036min

AstronomyCast 170: Coordinate Systems

2 Helmi 201035min

AstronomyCast 169: The Fermi Mission

1 Helmi 201031min

26 Tammi 201032min

We finally get organized enough deal with several listener questions: isn�t dark matter just regular stuff we can�t see? how can parts of the Universe be expanding faster than the speed of light? what will Betelgeuse look like when it explodes as a supernova? what�s the speed of gravity? All these and more questions are answered.

18 Joulu 200629min