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Reposted by SDSS-V/Milky Way Mapper

Sloan Digital Sky Surveys @sdssurveys.bsky.social · 30/07/2026

Want to see our DR20 data? Go to our Splash Page, which lists all the different ways that you can interact with SDSS data: dr20.sdss.org #DR20

dr20.sdss.org

SDSS Splashpage

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Reposted by SDSS-V/Milky Way Mapper

Jennifer Johnson @jajohnson.bsky.social · 30/07/2026

Really excited for #DR20 today from @sdssurveys.bsky.social. Over 50,000 white dwarf spectra, with many new ones from the Southern Hemisphere!

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SDSS-V/Milky Way Mapper @milkywaymapper.bsky.social · 30/07/2026

Data Release 20 is happening today for @sdssurveys.bsky.social! Milky Way Mapper is handing out gobs of BOSS spectra and stellar parameters, including the first set from the Southern Hemisphere

Projection of sky in Galactic coordinates showing the number of stars with BOSS spectra. There are lots in the Southern Hemisphere

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Reposted by SDSS-V/Milky Way Mapper

Sloan Digital Sky Surveys @sdssurveys.bsky.social · 30/07/2026

Big day for us today at the Sloan Digital Sky Surveys: it's Data Release Day! Our twentieth(!!!) data release will go out later today, with lots of spectra and catalogs of stars, galaxies and quasars, and some new webtools! Our DR20 paper has all the details: arxiv.org/abs/2607.26149 #DR20

arxiv.org

The Twentieth Data Release of the Sloan Digital Sky Survey: First All-Sky BOSS Spectra, eROSITA-SDSS-V Mapper Coordinated Observations, and a Preview of the Local Volume Mapper

This paper presents the twentieth data release (DR20) from the Sloan Digital Sky Survey, the third data release of its fifth generation (SDSS-V). SDSS-V is a panoptic spectroscopy survey that is mappi...

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Reposted by SDSS-V/Milky Way Mapper

Hyperallergic @hyperallergic.com · 15/07/2025

Recent scholarship suggests the Milky Way was represented in Ancient Egypt as early as 1077–943 BCE. The sky goddess, Nut, was sometimes depicted with an “undulating black curve,” thought to symbolize the Great Rift, a ribbon of dark space that divides the Milky Way.

hyperallergic.com

Ancient Egyptian Coffin Paintings Suggest Awareness of Milky Way

Representations of the Egyptian sky goddess Nut on 3,000-year-old coffins shows evidence of the galaxy being accurately represented.

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Reposted by SDSS-V/Milky Way Mapper

Sloan Digital Sky Surveys @sdssurveys.bsky.social · 10/07/2025

Today is a big day for us: it's DATA RELEASE DAY!!! And to celebrate our nineteenth data release, we have not one, but two papers for you to read all about our data: we have a DR19 paper (arxiv.org/abs/2507.07093) and an SDSS-V Overview paper (arxiv.org/abs/2507.06989) #DR19

arxiv.org

Sloan Digital Sky Survey-V: Pioneering Panoptic Spectroscopy

The Sloan Digital Sky Survey-V (SDSS-V) is pioneering panoptic spectroscopy: it is the first all-sky, multi-epoch, optical-to-infrared spectroscopic survey. SDSS-V is mapping the sky with multi-object...

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SDSS-V/Milky Way Mapper @milkywaymapper.bsky.social · 23/10/2023

We need start the game that whenever someone shows the Robert Hurt artist's conception of the Milky Way at #MilkyWay23, everyone gets a chocolate treat.

A face-on spiral galaxy with spiral arms labeled.

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SDSS-V/Milky Way Mapper @milkywaymapper.bsky.social · 23/10/2023

An entire conference devote to "Surveying the Milky Way". #MilkyWay23. We will be wallowing for the next week. Please excuse us. 🤩🌌

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