There is evidence that the formation of the Solar System began about 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk o...
The following is a timeline of Solar System astronomy and science. It includes the advances in the knowledge of the Earth at planetary scale, as part of it. Direct observation Humans ( Homo sapiens ) have inhabited the Earth in the last 300,000 years at least, and they had witnessed direct...
Explore the eight (or nine) planets of the solar system in order from nearest to the sun and discover the many wonders of our solar system along the way.
1. Many Worlds ; 2. Small Worlds, Too ; 3. Lots of Moons ; 4. Meet Me in the Milky Way ; 5. A Long Way Around ; 6. Spiraling Through Space ; 7. Room to Breathe ; 8. Ring Worlds ; 9. Getting Out There ; 10. Life as We Know It
The presence of water on the terrestrial planets of the Solar System (Mercury, Venus, Earth, Mars, and the closely related Earth's Moon) varies with each planetary body, with the exact origins remaining unclear. Additionally, the terrestrial dwarf planet Ceres is known to have water ice on...
Length of Day ; Length of Year ; Distance from Sun ; One Way Light Time to Sun
Online 3D simulation of the Solar System and night sky in real-time - the Sun, planets, dwarf planets, comets, stars and constellations
The Earth and the Solar system - The Solar System is made up of the Sun and all of the smaller objects that move around it. Apart from the Sun, the largest members of the Solar System are the eight...
Credit : NASA/Moore Boeck, Language : english ; The symbols for the planets, dwarf planet Pluto, Moon and Sun (along with the symbols for the zodiac constellations) were developed for use in both astronomy and astrology. The International Astronomical Union, the scientific organization responsible for naming things in space, discourages the use of symbols like these in scientific publications. According to the "IAU Style Manual," "In general, the special symbols for the names of planets and certain astronomical phenomena, such as conjunctions, should not be used. (A key should always be give ...
Mercury ; Venus Surface ; Venus Atmosphere ; Mars ; Jupiter ; Saturn ; Saturn Ring ; Uranus ; Neptune