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Co-authored-by: Troy Raen <raen@ipac.caltech.edu>

Author: jkrick

tutorials/spherex/spherex.md

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 # Spherex Tutorial Notebooks
-SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) is a NASA space mission designed to perform the first all-sky spectral survey in the near-infrared. 
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+[SPHEREx](https://irsa.ipac.caltech.edu/Missions/spherex.html) (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) is a NASA space mission designed to perform the first all-sky spectral survey in the near-infrared. 
 SPHEREx observes the sky from roughly 0.75–5.0 µm using a single instrument that provides low-resolution spectroscopy (R ≈ 40–150) in hundreds of spectral channels for every point on the sky. 
 Its science goals span cosmology, galaxy evolution, and the interstellar medium, enabling measurements of large-scale structure, the cosmic history of star formation, and the distribution of key molecules and ices in the Milky Way and nearby galaxies.