Siti consigliati

Astrobiologia:

	http://www.seti-italia.cnr.it	http://www.esobiologia.org
	http://www.seti.org/	http://setiathome.ssl.berkeley.edu/
	http://www.setileague.org/	http://www.jb.man.ac.uk/research/seti/
	http://seti.uws.edu.au/	http://www.naic.edu/
	http://planetary.org/	http://www.space.com/
	http://skyandtelescope.com/	http://www.airsd.org/
Archeoastronomia:
	http://digilander.libero.it/archeoastronomia/index1.htm
	http://www.calion.com/archeo/archeoi.htm
	http://www.archaeoastronomy.it/	http://www.vialattea.net/
Geologia:
	http://www.ingv.it/