Lithium Dip Found in Unexpectedly Young Stars ⚡ экспресс
In the Serpens star cluster, just 35 million years old, astronomers found a lithium dip — something usually seen in stars older than 150 million years. Fast-spinning stars lose lithium even faster, like sugar dissolving in hot tea when you stir it. Why are young stars in such a hurry to get rid of their lithium?
By breaking down the light of the 'Serpens' cluster with spectroscopy (a method that splits light into its component colors), astronomers found that stars start losing lithium as early as 35 million years — four times sooner than thought. This changes our understanding of how sun-like stars mature.
The cause is rotation. A star works like a giant blender: rapid rotation mixes the material, dragging lightweight lithium into the hot interior where it burns up. The faster it spins, the harder it 'mixes' and the sooner the lithium disappears.
The most unexpected twist: this lithium is primordial, born in the Big Bang. Its early disappearance means that stars destroy cosmic 'fossil' elements faster, and we'll have to rethink how galaxies accumulate light elements.
🎯 Lithium is one of the three elements born in the Big Bang, along with hydrogen and helium. Its abundance in the Universe serves as a crucial test of cosmological theories.
🎬 Sci-fi writers often portray stellar cycles as slow processes, but here lithium destruction is accelerated by rotation, like a cosmic blender with a 'turbo' button.