Webb observations reveal evidence of massive planetary collisions around young stars

The short version

• Astronomers led by Kate Su used NASA's James Webb Space Telescope to examine 21 rare extreme debris disks around young stars.[ScienceDaily]
• About one-third of the sampled disks are rich in silica, which researchers say likely stems from energetic collisions between Mars-sized bodies.[ScienceDaily]
• The remaining two-thirds are silica-poor, pointing to lower-energy grazing impacts between Moon-sized objects.[ScienceDaily]
• Silica-rich disks have exclusively been detected around stars younger than 300 million years.[ScienceDaily]

Key facts

• Kate Su of the Space Science Institute led an astronomy team using NASA's James Webb Space Telescope to study 21 rare extreme debris disks.[ScienceDaily]
• The findings were published on October 1 in The Astrophysical Journal.[ScienceDaily]
• Scientists estimate that only about 1% of young stars show observable signs of the extreme debris disk phase.[ScienceDaily]
• Roughly one-third of the analyzed disks are silica-rich, while the other two-thirds are silica-poor.[ScienceDaily]
• Silica-rich disks have only been identified around stars younger than 300 million years.[ScienceDaily]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.

• NASA’s Webb finds signs of Mars-sized worlds smashing togetherScienceDaily - Science