Welcome to NASA's Cosmos
NASA's Cosmos provides comprehensive accounts of the most recent discoveries
about the planets, their satellites, the Sun, and other bodies in the
solar system, based primarily on NASA space missions. Funding for this site is
provided by NASA's Applied Information Systems Research Program, and the University
College of Citizenship and Public Service at Tufts.
To explore the five main segments of NASA's Cosmos -
Planets and Moons,
Asteroids and Comets,
Search For Life,
click on the appropriate navigation tab above.
Within each segment, numerous topics related to that segment will be listed along the left
sidebar. Each topic has the following content areas associated with it, accessible from the
- Overview: provides key ideas and fundamental discoveries in a
- Tutorial: provides text and figures, abridged from the author's
lengthier books described below.
- Images: provides more than 400 close-up, high-resolution images
from spacecraft and more than 100 line drawings.
- Print: provides a printable version of the current content area.
The home pages of the relevant space missions and other related sites
are located by clicking on Resources at the top of any page.
Textual materials, figure legends, and images contained in
NASA's Cosmos are excerpted from the following books authored by
Professor Ken Lang of Tufts University and published
by Cambridge University Press.
Copyright 2010, Professor Kenneth R. Lang, Tufts University