The most important thing the James Webb Space Telescope produces is not an image. It is a file, and after a fixed waiting period that file belongs to everyone. Webb's raw and calibrated observations are deposited in the Mikulski Archive for Space Telescopes, or MAST, run for NASA at the Space Telescope Science Institute, which holds data from more than a dozen missions including Webb, Hubble, TESS, and Kepler. [1]

The paper wrote on June 27 that the exoplanet archive logs confirmed planets for public audit, where a distant world becomes a checkable row. MAST is the upstream half of that discipline: the Exoplanet Archive is the catalog, but MAST is where the raw frames behind every entry sit, waiting to be re-reduced. [1][3]

The waiting period is the mechanism most coverage misses. By default, a Webb observation carries a 12-month exclusive-access period, giving the team that proposed it a year to publish first; after that the data become public, and anyone can retrieve them anonymously, no account required. [2] Teams may shorten the hold to six months, three, or none, and large treasury, calibration, and survey programs release with no exclusive period at all. [2]

What lands in the archive is not a press picture but the machinery beneath it. MAST stores Webb products at every pipeline stage, from raw detector output converted to standard FITS files through flux-calibrated and combined science images, alongside the public data-reduction pipeline itself. [1] A critic who doubts a spectrum can pull the raw frames and run them again, arriving at a different answer or the same one. [1]

That is why the count downstream keeps its authority. The NASA Exoplanet Archive lists 6,298 confirmed planets, and in June it added a Transit Service application programming interface and an atmospheric observation list linking Webb spectra to the worlds they characterize — tools that let a claim be assembled from deposited data rather than from a rendering. [3]

This is where the divergence costs the reader. X swings between worship and conspiracy; mainstream technology coverage prefers the reveal and the ranking of missions. Neither lingers on the archive, where a claim about a distant atmosphere is either backed by public frames or it is not. [1][3] Trustworthy astronomy will not arrive as a single breathtaking image. It will arrive as a raw file a stranger can open a year later and reduce for themselves. [2]

-- KENJI NAKAMURA, Tokyo