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720,000 km/h (450,000 mi/h) [ 10] Orbital period. ~230 million years [ 10] The Solar System[ d] is the gravitationally bound system of the Sun and the objects that orbit it. [ 11] It was formed about 4.6 billion years ago when a dense region of a molecular cloud collapsed, forming the Sun and a protoplanetary disc.
The observable universe contains as many as an estimated 2 trillion galaxies [41] [42] [43] and, overall, as many as an estimated 10 24 stars [44] [45] – more stars (and, potentially, Earth-like planets) than all the grains of beach sand on planet Earth.
Dune is an American science fiction media franchise that originated with the 1965 novel Dune by Frank Herbert [ a] and has continued to add new publications. Dune is frequently described as the best-selling science fiction novel in history. [ 1][ 2] It won the inaugural Nebula Award for Best Novel and the Hugo Award in 1966 and was later ...
The Milky Way is approximately 890 billion to 1.54 trillion times the mass of the Sun in total (8.9 × 10 11 to 1.54 × 10 12 solar masses), [ 7][ 8][ 9] although stars and planets make up only a small part of this. Estimates of the mass of the Milky Way vary, depending upon the method and data used.
KOI-1686.01 was also considered a potentially habitable exoplanet after its detection in 2011, until proven a false positive by NASA in 2015. [ 72] Several other KOIs, like Kepler-577b and Kepler-1649b, were considered potentially habitable prior to confirmation, but with new data are no longer considered habitable.
Universe Sandbox is a series of interactive space sandbox gravity simulator educational software video games.Using Universe Sandbox, users can see the effects of gravity on objects in the universe and run scale simulations of the Solar System, various galaxies or other simulations, while at the same time interacting and maintaining control over gravity, time, and other objects in the universe ...
In 2015, the US space agency NASA published an article which stated that many of the newly discovered astronomical bodies possessed scientifically confirmed properties that are similar to planets in the fictional Star Wars universe. Kepler-452b, a rocky super-Earth-type planet, is said to be similar to the Star Wars planet Coruscant.
Planets. Counter-Earth, a planet situated on the other side of the Sun from that of the Earth. Fifth planet (hypothetical), historical speculation about a planet between the orbits of Mars and Jupiter. Phaeton, a planet situated between the orbits of Mars and Jupiter whose destruction supposedly led to the formation of the asteroid belt.