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How astronomers managed to measure the heat emitted by the small planet Trappist-1b

2023-03-27T16:30:36.213Z


The exceptional sensitivity of the James Webb Space Telescope made this feat possible. Explanations.


The goal is not the goal.

This is the way.

»

«

The important thing is not the destination, but the journey.

»

«

What counts is not the arrival, it is the quest.

Everyone says it in their own way (Lao-tzu, Robert Louis Stevenson then Orelsan), but the idea remains the

same: in life, it's less the result than the way to get there that matters.

Read alsoTrappist-1, the little star with seven Earths

If the aphorism is perhaps a little less true in science than elsewhere, it undoubtedly applies this time: by showing that the exoplanet Trappist-1b is very probably devoid of atmosphere and that its temperature day side is around 230°C, astronomers have not made a discovery that will revolutionize the world.

On the other hand, the very fact of being able to say something so precise about such a tiny and distant world is a landmark performance.

This is why the result is published in the journal

Nature

.

Thanks to the James Webb Space Telescope (JWST), we have entered the era of characterization…

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Source: lefigaro

All tech articles on 2023-03-27

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