The James Webb Space Telescope has identified water and carbon dioxide ice in the debris disk surrounding Beta Pictoris, a young star about 64 light-years away. The ice is in roughly the same proportions as in comets in our Solar System, suggesting ingredients necessary to form water-rich worlds might be common around young stars.
Beta Pictoris is roughly 20 million years old, and its disk was among the first ever imaged, back in 1984. Astronomers see it almost exactly edge-on. The debris disk’s dust is constantly replenished by collisions among comets and planetesimals.
The research, published in Science and led by Sarah Betti of the Space Telescope Science Institute, detected glassy water ice mixed with carbon dioxide. These are in roughly the same proportions as in comets within our own Solar System.
Analysis
Why This Matters
- The discovery shows that ice similar to Solar System comets exists around other stars, supporting theories of common planetary ingredients.
- It suggests that water-rich planets may form frequently, which has implications for the potential habitability of exoplanets.
- Advances understanding of how planetary systems develop from debris disks.
Background
Beta Pictoris is a well-studied young star system located 64 light-years away. Its debris disk was first imaged in 1984 and is seen edge-on, making it a natural laboratory for planetary formation. The James Webb Space Telescope's observations have revealed the presence of water and carbon dioxide ice, mirroring compositions found in our Solar System's comets.
What to Watch
- Future observations of other young star systems to confirm if similar ice compositions are common.
- Additional studies of Beta Pictoris to identify other molecules in its disk.
- Implications for models of water delivery to terrestrial planets in forming systems.
Checked
10 claims in this story checked against 1 source: 10 supported.
Show each claim
- SupportedThe James Webb Space Telescope detected water and carbon dioxide ice in the debris disk around Beta Pictoris.Science - Ars Technica: “Researchers found both water and carbon dioxide ice.”
- SupportedThe water and carbon dioxide ice are in roughly the same proportions as those in Solar System comets.Science - Ars Technica: “The water ice is glassy rather than crystalline, and it is mixed with carbon dioxide in roughly the same proportions we see in comets of our own Solar System.”
- SupportedThose ingredients may be common around young stars and could help form water-rich worlds.Science - Ars Technica: “This suggests ingredients necessary to form water-rich worlds might be common around young stars.”
- SupportedBeta Pictoris is about 64 light-years away.Science - Ars Technica: “Beta Pictoris is a young star, roughly 20 million years old, and located about 64 light-years away from Earth.”
- SupportedBeta Pictoris is roughly 20 million years old.Science - Ars Technica: “Beta Pictoris is a young star, roughly 20 million years old”
- SupportedBeta Pictoris’s disk was among the first ever imaged, in 1984.Science - Ars Technica: “Its disk was among the first ever imaged, back in 1984”
- SupportedAstronomers see the disk almost exactly edge-on.Science - Ars Technica: “we see it almost exactly edge-on”
- SupportedDust in the debris disk is constantly replenished by collisions among comets and planetesimals.Science - Ars Technica: “the dust is constantly replenished by collisions among comets and planetesimals”
- SupportedThe research was published in Science and led by Sarah Betti of the Space Telescope Science Institute.Science - Ars Technica: “In a new Science study, a team led by Sarah Betti, an astronomer at the Space Telescope Science Institute in Baltimore”
- SupportedThe detected water ice is glassy and mixed with carbon dioxide.Science - Ars Technica: “The water ice is glassy rather than crystalline, and it is mixed with carbon dioxide”
