Earth’s Infrared Secrets: Key to Finding Life in Distant Worlds

The LIFE mission’s five satellites are connected to form a large space telescope. Credit: ETH Zurich / LIFE initiative

What’s unique about the study is that the team tested the future LIFE mission’s capabilities on real rather than simulated spectra. Using data from one of the atmospheric measuring devices on’s Aqua Earth observation satellite, they generated the Earth’s emission spectra in the mid-infrared range, as might be recorded in future observations of exoplanets.

The researchers considered three observation geometries – the two views from the poles and an additional equatorial view – and focused on data recorded in January and July to account for the largest seasonal variations.The study’s key finding is encouraging: if a space telescope like LIFE were to observe planet Earth from a distance of around 30 light years, it would find signs of a temperate, habitable world.

Source: Tech Daily Report (techdailyreport.net)

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