Het zonnestelsel bestaat uit één zon, negen planeten, een zeventigtal manen, duizenden kleine planeten, miljoenen kometen, miljarden asteroïden.
De wandeling begint aan de uiterste buitenkant van het zonnestelsel waar de Oortwolk een groot…
Mars has long been believed to have been cold, dead and dry for aeons, but there is now striking new proof that not only was Mars a relatively warm and wet place in geologically recent times, but that even today there are vast reserves of water…
Growing evidence, based on observations from orbiters, landers and telescopes, indicates that Mars may still have numerous hidden water reservoirs. Moreover, from the point of view of habitability, Mars is a prime target for astrobiologists in…
Join Bonnie J. Buratti, a leading planetary astronomer, on this personal tour of NASA's latest discoveries. Moving through the Solar System from Mercury, Venus, Mars, past comets and asteroids and the moons of the giant planets, to Pluto, and on to…