alpha-CentauriStagione 4Stagione 4Numero di stagione4Season name—ImmaginiLocandina#ImmagineTitoloTrasmesso1How does one measure distances in space? Part 27 gen 20012Is there a 10th planet?21 gen 20013How old is the Earth?4 feb 20014How does one measure distances in space? Part 318 feb 20015What is time?4 mar 20016What is an atomic nucleus?4 mar 20017What is cyclosophy?1 apr 20018Why is Uranus lying on its side?15 apr 20019What are binary stars?29 apr 200110What is the background radiation13 mag 200111Do Black Holes fuse?27 mag 200112What is simultaneousness?10 giu 200113Where do we know all this from?24 giu 200114Is space empty?8 lug 200115Is the Earth's magnetic field about to dissolve?22 lug 200116What are solar winds?5 ago 200117What does the future of the universe look like?19 ago 200118Where do the asteroids come from?2 set 200119How cold is it in the universe?16 set 200120Are there extraterrestrials?30 set 200121What was before the Big Bang?14 ott 200122Where was the Big Bang?28 ott 200123Why do ice ages happen?11 nov 200124Is astronomy without telescope possible?25 nov 200125Are the natural laws random?9 dic 200126What are wormholes?23 dic 2001