alpha-CentauriΣεζόν 4Σεζόν 4Αριθμός σεζόν4Season name—ΕικόνεςΑφίσα#ΕικόναΤίτλοςΠροβλήθηκε1How does one measure distances in space? Part 27 Ιαν 20012Is there a 10th planet?21 Ιαν 20013How old is the Earth?4 Φεβ 20014How does one measure distances in space? Part 318 Φεβ 20015What is time?4 Μαρ 20016What is an atomic nucleus?4 Μαρ 20017What is cyclosophy?1 Απρ 20018Why is Uranus lying on its side?15 Απρ 20019What are binary stars?29 Απρ 200110What is the background radiation13 Μαΐ 200111Do Black Holes fuse?27 Μαΐ 200112What is simultaneousness?10 Ιουν 200113Where do we know all this from?24 Ιουν 200114Is space empty?8 Ιουλ 200115Is the Earth's magnetic field about to dissolve?22 Ιουλ 200116What are solar winds?5 Αυγ 200117What does the future of the universe look like?19 Αυγ 200118Where do the asteroids come from?2 Σεπ 200119How cold is it in the universe?16 Σεπ 200120Are there extraterrestrials?30 Σεπ 200121What was before the Big Bang?14 Οκτ 200122Where was the Big Bang?28 Οκτ 200123Why do ice ages happen?11 Νοε 200124Is astronomy without telescope possible?25 Νοε 200125Are the natural laws random?9 Δεκ 200126What are wormholes?23 Δεκ 2001