Track 11. Comet Trip: (from 0min00sec) in the Oort cloud; (from 0min07sec) gravitational perturbations; (from 0min22sec) acceleration; (from 0min46sec) tail forming; (from 1min09sec) perihelion; (from 1min35sec) away from the sun. 1'51''
progressive
electronic
space
astronomy
adrianne
astronomusic
pictures of a solar syste
rech
simioni
the intelligible sky
the life of a star
zozimo