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Home / Technology / Not only did we not find water on an Earth-like exoplanet, but we can not do it with current technology

Not only did we not find water on an Earth-like exoplanet, but we can not do it with current technology




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ESA / Hubble, M. Kornmesser

One of the holy grail of modern science is to create a world beyond To find earth alive on it.

NASA / Ames / JPL-Caltech

Perhap The most exciting possibility is to discover a rocky exoplanet with liquid water on its surface and biosignatures in its atmosphere.

NASA Ames / JPL-Caltech / T. Pyle

In recent decades astronomers have discovered thousands of new exoplanets.

NASA / Ames Research Center / Jessie Dotson and Wendy Stenzel; missing earth-like worlds from E. Siegel

Some of them are rocky; some are temperate; some have water.

NASA / R. Injured / t. Pyle

However, the notion that the exoplanet K2-18b is rocky and earth-like and contains liquid water is absurd despite recent headlines.

NASA / Goddard

Light filters through the atmosphere of K2-18b as it passes by its star, so we can measure what is being absorbed.

ESA / David Sing

Based on these absorption lines, the presence of many chemicals can be inferred, including water.

B. Benneke et al. (2019), arXiv: 1989.04642

K2-18b is actually the first known exoplanet in a habitable zone containing water.

Mr. Billions / Wikimedia Commons; Stellarium

However, it is not rocky; Its mass and radius are too large and require a large gas envelope.

Chen and Kipping, 2016, via https://arxiv.org/pdf/1603.08614v2.pdf[19659007<Iftheatmosphereoftheearthcannotberecognizedbycurrentinstrumentsitwouldbeimpossibletorecognize

Melmak / pixabay

It's a mini-neptune: interesting, but not the habitable exoplanet we're looking for.

NASA Ames / N. Batalha and W. Stenzel

For this we need new, larger, more sophisticated observatories.

NASA

If we do not build them, we'll never find the Earth-like worlds we dream about.

NASA and Northrop Grumman


Most of the time, Mute Monday says: astronomical history in pictures, images and no more than 200 words. Less speech; smile more.

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ESA / Hubble, M. Kornmesser

One of the sacred pages of modern science is to find a world beyond the earth on which life lives.

NASA / Ames / JPL-Caltech

Perhaps the most exciting possibility is to discover a rocky exoplanet with liquid water on its surface, the biosignatures in its atmosphere.

NASA Ames / JPL-Caltech / T. Pyle

In recent decades astronomers have discovered thousands of new exoplanets.

NASA / Ames Research Center / Jessie Dotson and Wendy Stenzel; missing earth-like worlds from E. Siegel

Some of them are rocky; some are temperate; some have water.

NASA / R. Injured / t. Pyle

However, the notion that the exoplanet K2-18b is rocky and earth-like and contains liquid water is absurd despite recent headlines.

NASA / Goddard

Light filters through the atmosphere of K2-18b as it passes by its star, so we can measure what is being absorbed.

ESA / David Sing

Based on these absorption lines, the presence of many chemicals can be inferred, including water.

B. Benneke et al. (2019), arXiv: 1989.04642

K2-18b is actually the first known exoplanet in a habitable zone containing water.

Mr. Billions / Wikimedia Commons; Stellarium

However, it is not rocky; Its mass and radius are too large and require a large gas envelope.

Chen and Kipping, 2016, via https://arxiv.org/pdf/1603.08614v2.pdf[19659007<IftheatmosphereoftheEarthcannotberecognizedbycurrentinstrumentsitcannotberecognized

Melmak / pixabay

It's a mini-neptune: interesting, but not the habitable exoplanet we're looking for.

NASA Ames / N. Batalha and W. Stenzel

For this we need new, larger, more sophisticated observatories.

NASA

If we do not build them, we'll never find the Earth-like worlds we dream about.

NASA and Northrop Grumman


Mostly Mute Monday says: astronomical history in pictures, images and no more than 200 words. Less speech; smile more.

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