Astronomy Visual Dictionary.Definitions, images and pronunciation for almost everything in celestial bodies, astronomical observations and astronautics.
Cosmos4kids.com.The Universe, the galaxies, the stars, the Solar System, and more.
Living in space.20 things you probably didn't know about living in space.
Exploring the Universe
PlanetQuest.An historic timeline of Mankind's awareness and discovery of other planets. A most excellent resource by NASA.
We choose the Moon.2009 was the 40th anniversary of the first lunar landing. This superb website was set up to commemorate that historic event. The mission is recreated in precise detail right from pre-launch with actual voiceovers. You can change the views and also click on hotspots to view related media galleries. The site is divided into 11 sections where you can watch photos, videos, and other archival content.
Apollo 11.Google Earth Tour that describes the landing, moon walks, and the return to space of Apollo 11 with excellent visual aids and great narrations.
The Apollo missions on the Wikipedia.Don't forget to check the links to the Apollo 11 and Apollo 13 missions.
The top 10 failed NASA missions.A look back at the top 10 American space missions that didn't make it.
The International Space Station turns 10.A great collection of 32 high quality photos of the IIS, compiled for its tenth birthday.
The atlas of the Universe.Nine maps, the first one showing the nearest stars. The others slowly expand out until we have reached the scale of the entire visible Universe.
Powers of ten.A classic movie that shows the amazingly huge size of the Universe parting from a small square one metre long.
Hubble Space Telescope Advent Calendar 2008.A collection of 25 high quality photos of the Universe from the amazing Hubble Space Telescope.
Hubble Space Telescope Advent Calendar 2009.25 commented photographs, some old, some new, to celebrate the traditional western Christmas Season.
Hubble Space Telescope Advent Calendar 2010.Third annual Hubble Space Telescope imagery Advent Calendar, with 25 new stunning photos.
Hubble telescope image tours.Some of the most important and famous images taken by the Hubble explained in detail. Visiting this site is a must.
Hubble telescope picture album.The entire collection of the images taken by the Hubble classified in categories.
Sky Map.Ongoing project that features a high resolution sky map with celestial objects that are outside our solar system mapped out.
Stars, Galaxies, Nebulas and Constellations
Observe the view of the night sky from the same location over a year.Visualize an animation that shows how the night sky changes along the year at Exploring Earth online book.
Neave Planetarium.Simulated planetarium that allows you to observe stars, constellations and planets from any specific location.
One thousand billion worlds.360-degree panoramic image, covering the whole of the vault of heaven.
The end of a star.Animation showing the processes that take place at the end of the life of a high mass star.
Earth may soon have a second sun.The red supergiant star Betelgeuse is getting ready to go supernova, and when it does Earth will have a front-row seat.
The Solar System
Solar System Scope.Fly around the Solar System's planets and explore the constellations in 3D and real time with this excellent interactive model.
Observe the origin of the Solar System.Visualize an animation showing the origin of the Solar System from a nebula at Exploring Earth online book.
Wikijunior Solar System.Wikipedia's Wikijunior online book on the Solar System. Comprehensive, aimed to kids, but still unfinished.
Wikipedia: Solar System.Wikipedia's article on the Solar System. Very up to date.
NASA: Solar System exploration.Full information on the Solar System offered by the scientists from the NASA.
Around the Solar System.Collected here are 32 images gathered from around our solar system, at scales ranging from mere centimeters to millions of kilometers.
Catalog of spaceborne imaging.Images of the Solar System bodies taken by the NASA missions.
Ten mysteries of the Solar System.Some of the most intriguing facts in our stellar system.
The Sun in Cosmos4kids.com.Sun's structure, energy and influence on the Earth.
The boiling, erupting Sun.Beautiful photo taken by astrophotographer Alan Friedman that shows sunspots, giant convection cells and prominences silhouetted against the sky.
The Big Picture: the Sun.A collection of some of the most amazing photos ever taken of our star.
Revolving planets.Amazing animation showing the movements of the planets from different perspectives.
Saturn.Sensational images of Saturn showing the ringed planet in incredible detail.
The Big Picture: Saturn at equinox.During the equinox, the sunlight casts long shadows across Saturn's rings, highlighting previously known phenomena and revealing a few never-before seen images.
The Big Picture: Martian skies.A wonderful selection of some of the best martian images ever made.
Landscapes of Mars.Stunning satellite images of the Red Planet reveal avalanches, sand dunes and more.
Explore Mars now.Landing on Mars is an inevitability. This website simulates a tour through the Martian landscape and a human colonized habitat. The walkthrough is a lesson in the science, technology, and design challenges that will be required to land man on the Red Planet.
Examine evidence of Earth turning about an axis.Visualize an animation that demonstrates that the Earth rotates around itself at Exploring Earth online book.
Explore a model of Earth's daily rotation.Visualize an animation that shows how the Earth rotates around itself at Exploring Earth online book.
Investigation: What time is it?A great series of activities to learn why and where it is daytime or night-time in any given moment.
Earth view.Want to know how the Earth looks like right now?
Explore a model of Earth's yearly revolution around the Sun.Visualize an animation showing how the Earth revolves around the Sun at Exploring Earth online book.
The Seasons in Geography4kids.Learn how the relative position of the Earth to the Sun conditions the climate and the daylength.
Examine Earth from a new perspective.Observe the Earth's maps of temperatures, volcanoes, earthquakes, water vapor and more, at Exploring Earth online book.
Observe a visual model of Earth's spheres.Visualize the Earth system as a set of four overlapping and interacting spheres, at Exploring Earth online book.
Investigation: How are Earth's spheres interacting?A great series of activities to study how the four spheres of the Earth interact, at Exploring Earth online book.
Ten things you don't know about the Earth.Fantastic article that unravels some of the most significant facts about our planet... or did you already know that the Everest is not the biggest mountain?
Gravity satellite yields 'Potato Earth' view.The geoid is the Earth depicted according to the gravty of its surface. ESA's GOCE satellite shows it with an unprecedented accuracy.
June 19, 240 B.C.: the Earth is round, and it's this big.Those were the great news more than 2,200 years ago. They took a time to spread around the globe, though.
Google Moon.If you are interested in the Moon or the Apollo landings, Google currently has a wonderful educational tool regarding the Moon that will interest everyone.
How the Moon works.Videos, images and lots of info to learn almost everything about our only natural satellite.
Phases of the Moon.The phases of the Moon explained through diagrams.
Images of the Moon.Images of the Moon taken by the NASA missions.
Huge panoramic picture of the Moon (I).Taken by the Apollo 12 crew, in the second manned mission to the Moon ever.
Huge panoramic picture of the Moon (II).Taken by the Apollo 17 crew just a few days before the man left the Moon for the last time.