What Can We Actually Find on an Exoplanet? Part 1: The Atmospheric Fingerprint

August 17, 2026 Universe Today

What Can We Actually Find on an Exoplanet? Part 1: The Atmospheric Fingerprint
By Paul Sutter (https://ift.tt/sFAOHGK)

The Pale Blue Dot: Earth photographed by Voyager 1 from six billion kilometers away in 1990. Everything we are is in that single point of light. Credit: NASA/JPL-Caltech (public domain).

If an alien civilization could see Earth only as a single pale blue dot, what could they learn? We start with transit spectroscopy, the biosignature cocktail of oxygen, methane, ozone, and water, and why even the James Webb will struggle to find life.

August 17, 2026 at 03:45PM
via read more...

No comments

Subscribe to: Post Comments ( Atom )