![]() Over time, the gas and dust content of planet-forming disks declines. PDS 70 is the first relatively old disk – approximately 5.4 million years old – where astronomers found water. This survey aims to identify the properties of disks made of gas and dust around young stars, which can teach us about the conditions that determine the composition of planets potentially forming there. MINDS is a JWST guaranteed-time program involving research institutes from 11 European countries. He is a co-author of the underlying article, Co-PI (principal investigator) of MIRI, and the PI of the MINDS (MIRI Mid-Infrared Disk Survey) program. “This discovery is extremely exciting, as it probes the region where rocky planets similar to Earth typically form,” MPIA Director Thomas Henning points out. ![]() According to the analysis, the water is in the form of hot vapour, blazing at a temperature of around 330 degrees Celsius (600 Kelvin). In the solar system, this is the region where rocky planets orbit the Sun. Observations with MIRI (Mid-InfraRed Instrument) on board the James Webb Space Telescope (JWST) discovered water near the disk centre, close to the host star PDS 70.
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