White dwarf stars' debris disk formation delayed

White dwarfs, the glowing cores of dead stars, often host disks of dusty debris. However, these debris disks only appear 10 to 20 millions of years following the star's violent Red Giant phase. A new paper by Planetary Science ...

First discovery of methanol in a warm planet-forming disk

An international team of researchers led by Alice Booth (Leiden University, the Netherlands) have discovered methanol-ijs in the warm part of a planet-forming disk. The methanol cannot have been produced there and must have ...

High-mass stars are formed not from dust disk but from debris

A Dutch-led team of astronomers has discovered that high-mass stars are formed differently from their smaller siblings. Whereas small stars are often surrounded by an orderly disk of dust and matter, the supply of matter ...

Planet formation may start earlier than previously thought

On their long journey to form planets, dust grains may coalesce with each other much earlier than previously thought, simulations by RIKEN astrophysicists suggest1. This may mean revisiting conventional theories of planet ...

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