Largest planets likely formed first from icy “planetary pebbles” From Astronomy Now: This artist’s concept of a young star system shows gas giants forming first, while the gas nebula is present. Southwest Research Institute scientists used computer simulations to nail down how Jupiter and Saturn evolved in our own solar system. These new calculations show that the cores of gas giants likely formed by gradually accumulating a population of planetary pebbles — icy objects about a foot (30…

Largest planets likely formed first from icy “planetary pebbles” From Astronomy Now: This artist’s concept of a young star system shows gas giants forming first, while the gas nebula is present. Southwest Research Institute scientists used computer simulations to nail down how Jupiter and Saturn evolved in our own solar system. These new calculations show that the cores of gas giants likely formed by gradually accumulating a population of planetary pebbles — icy objects about a foot (30…

The Sun and solar system

vintage astronomy print Sun Solar System Earth astronomy planets orange decor

Taken by Prosper Henry, 1885.  This photograph of the Ring Nebula in the constellation Lyra shows but a three-degree section of the firmament, 1,956 light-years from earth. Once a star similar to our own sun, the nebula was formed when the star exploded, releasing gasses from its outer shell into space.

Taken by Prosper Henry, 1885. This photograph of the Ring Nebula in the constellation Lyra shows but a three-degree section of the firmament, 1,956 light-years from earth. Once a star similar to our own sun, the nebula was formed when the star exploded, releasing gasses from its outer shell into space.

Spiral Galaxy M82, Scientists have traced unusually regular radio signals being emitted from unknown object in this Galaxy.

Spiral Galaxy M82, Scientists have traced unusually regular radio signals being emitted from unknown object in this Galaxy.

Via Cassini - rare image of Saturn's rings and our planet Earth and its moon.

This Is What The Earth Looks Like From A Billion Miles Away

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