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Planet formation may start earlier than previously thought

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Planet formation may start earlier than previously thought
Figure 1: An image taken by the Atacama Large Millimeter/submillimeter Array (ALMA) of the protoplanetary disc around the nearby young star TW Hydrae. This image reveals multiple rings and gaps that indicate the presence of emerging planets as they sweep their orbits clear of dust and gas. Simulations by RIKEN astrophysicists suggest that the rings may form earlier than previously thought. © S. ANDREWS (HARVARD-SMITHSONIAN CFA); B. SAXTON (NRAO/AUI/NSF); ALMA (ESO/NAOJ/NRAO /SCIENCE PHOTO LIBRARYY
On their long journey to form planets, dust grains may coalesce with each other much earlier than previously thought, simulations by RIKEN astrophysicists suggest ....

Satoshi Ohashi , Planet Formation Laboratory , Atacama Large , Planet Formation , சதோஷி ஓஹாஷி , கிரகம் உருவாக்கம் ஆய்வகம் , கிரகம் உருவாக்கம் ,

Amounts of organic molecules in planetary systems differ from early on

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An international group of scientists led by the RIKEN Cluster for Pioneering Research have studied the chemical composition of 50 protoplanetary-disk forming regions in the Perseus Molecular Cloud, and found that despite being in the same cloud, the amounts of complex organic molecules they contain are quite different. Interestingly, the chemically rich young disks have similar compositions of organic molecules. These findings raise an important question: do solar-like systems share a common chemistry at birth?
It was once believed that complex organic molecules were rare in the universe, and that this rarity might be a reason we have not found evidence of life outside the earth. However, in the last two decades it has become clear that these molecules are common. According to Yao-Lun Yang, who led the research as a member of the Star and Planet Formation Laboratory in the RIKEN Cluster for Pioneering Research, and is now at the University of Virginia as a VICO ....

United States , Yao Lun Yang , Nami Sakai , University Of Virginia , American Astronomical Society , Planet Formation Laboratory , Cluster For Pioneering Research , Pioneering Research , Perseus Molecular Cloud , ஒன்றுபட்டது மாநிலங்களில் , நமி சாகாய் , பல்கலைக்கழகம் ஆஃப் வர்ஜீனியா , அமெரிக்கன் வானியல் சமூகம் , கிரகம் உருவாக்கம் ஆய்வகம் ,