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* A gigantic planet coming towards Earth?
* A house in the sky
* A little geochemical laboratory on Mars
* ...and the Apollo Program was born
* Area 51: the World's most secret air base
* Arthur C. Clarke, creator of "2001: a space odyssey"
* Astronomical symbols in national flags
* A three-fold interpretation of the "mbói jagua" snake
* Bright Mars
* Contamination of big rivers by edible oils?
* Cryonics: avant-garde Medicine or burial for eccentrics?
* Deep Space 1
* Experiments on telepathy, psychokinesis and premonition
* Exploring Mars on wheels
* Fermi's paradox
* Flight 1907: lessons to be learned
* Fly-it-yourself
* Following the trail of the most ferocious serpent
* Frequently-asked questions about the Moon
* From early dreamers to early astronauts
* From "tajy" tea to beta-lapachone
* Gasoline-electric hybrid cars
* History of the calendar
* How safe are aircraft?
* Human Being on the Moon
* Humans on Mars: how will we get there?
* Humans on Mars: what will we do there?
* In search of extraterrestrial visitors
* In search of the building stuff of Earth and Life
* In some Decembers, The Child comes
* Interplanetary probes
* Interstellar travel
* Is the protection of the little animals in the forests useful?
* Landing on an asteroid
* Life on Mars?
* Lunar ice
* Messages to the future
* New fuels, more expensive
* Not all that glitters is UFO
* On this rock I will build my church
* Our daily smog
* Planet Earth after the Nuclear War
* Politics should not interfere in Aviation Safety
* Satellite communications
* Science against dengue-fever mosquito
* Science against yellow fever
* Scientific investigations at Loch Ness
* Secrets of the martian environment
* S.E.T.I.
* "So many Suns, so many Earths"
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