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Study shows how planetary building blocks evolved from porous to hard objects

By Guest PostFebruary 25, 2015Scienceaging parents, australia, autophagosom, clara berridge, early solar system, elder abuse, electrostatics, evolution, evolve, fred ciesla, high density, international space station, jagd in afrika, meteorites, nursing home residents, oekotourismus in afrika, planet formation, security camera, software code, wilderei von elefanten

Thinking small has enabled an international team of scientists to gain new insight into the evolution of planetary building blocks in the early solar system.

The researchers compared the results of small-scale numerical simulations of colliding rock and dust particles to the composition of meteorites. They found that collisions helped transform initially porous materials into the more highly solidified asteroids and meteorites observed today. The team of seven scientists published their evidence last month in Nature Communications. (more…)

New Study Finds Oceans Arrived Early to Earth

By Guest PostFebruary 15, 2015Scienceautos, bastian rapp, carbonaceous chondrites, comets, earth, ed melvin, glassomer prozess, jeremy hlavacek, kanalstrukturen in glas, kim dietrich, kleeblattpeptide, planet formation, seabird bycatch, short tailed albatross, solar system, technology for business, watson ads builder, whoi

Earth is known as the Blue Planet because of its oceans, which cover more than 70 percent of the planet’s surface and are home to the world’s greatest diversity of life. While water is essential for life on the planet, the answers to two key questions have eluded us: where did Earth’s water come from and when? (more…)

Armchair Astronomers Find Planet in Four-Star System

By Guest PostOctober 16, 2012Scienceamerican, arizona, arxiv preprint, astronomical data, astronomical society, circumbinary planet, citizen scientist, cottonwood, debra fischer, discovery, earth, eclipsing star, Environment, four star, hawaii, jerome orosz, johns hopkins, keck telescopes, kepler spacecraft, kian jek, mauna kea, meg schwamb, NASA, neptune, nevada, orbit, ph1, phenomenon, planet, planet discovery, planet formation, planethunters, professional astronomer, radius, reno, robert gagliano, san diego, san francisco, server, star, state university, system, twin suns, university, website, yale

A joint effort of citizen scientists and professional astronomers has led to the first reported case of a planet orbiting twin suns that in turn is orbited by a second distant pair of stars.

Aided by volunteers using the Planethunters.org website, a Yale-led international team of astronomers identified and confirmed discovery of the phenomenon, called a circumbinary planet in a four-star system.

Only six planets are known to orbit two stars, according to researchers, and none of these are orbited by distant stellar companions. (more…)

Tag Archives: planet formation

Study shows how planetary building blocks evolved from porous to hard objects

New Study Finds Oceans Arrived Early to Earth

Armchair Astronomers Find Planet in Four-Star System