add hackday to home page

Author: stefaniebutland

index.qmd

@@ -16,7 +16,7 @@ We are influenced and inspired by many leaders and community organizers, particu
 
 -   Register now for [NASA Openscapes Champions Program - Fall 2025](news/2025-11-13-nasa-champions).
 
--   [Workshop on use of NASA satellite data for water management and climate analysis, and NASA International Space Apps Challenge, in Hermosillo, Sonora, Mexico](news/2025-10-02-mexico-workshop/)
+-   Register now for [earthaccess Hackday Dec 15](news/2025-12-15-earthaccess-hackday).
 
 -   [Julie Lowndes selected to receive the Greg Leptoukh Lecture at AGU 2025 Fall Meeting](news/2025-09-30-leptoukh-lecture/index.qmd)
 
@@ -26,6 +26,8 @@ We are influenced and inspired by many leaders and community organizers, particu
 
     -   [Fundamentals to use Hyperspectral and Thermal NASA Earth Observations](news/2025-07-21-hyperspectral-thermal-workshop/)
 
+    -   [Workshop on use of NASA satellite data for water management and climate analysis, and NASA International Space Apps Challenge, in Hermosillo, Sonora, Mexico](news/2025-10-02-mexico-workshop/)
+
 -   [Community Call summary published: earthaccess — helping users leverage the awesomeness of NASA Earthdata](https://nasa-openscapes.github.io/news/2025-08-01-earthaccess-awesomeness-nasa-earthdata/)
 
 Learn about our recent work: [News](news.qmd) • [Presentations](/about.qmd#slides) • [Flywheel Preprint](https://nasa-openscapes.github.io/about.html#flywheel-preprint) • [White Paper: The Value of Hosted JupyterHubs](https://nasa-openscapes.github.io/about.html#white-paper-value-of-hosted-jupyterhubs)
@@ -34,4 +36,4 @@ Learn about our recent work: [News](news.qmd) • [Presentations](/about.qmd#sli
 
 ![](images/openscapes_hex.png){fig-alt="hexagonal Openscapes logo" fig-align="left" width="30"} [openscapes.cloud](https://openscapes.cloud) - A central location for Openscapes JupyterHub access and fledging information.
 
-Project announcements: [NASA](https://earthdata.nasa.gov/learn/openscapes) • [Openscapes](https://www.openscapes.org/blog/2021/03/10/nasa-announcement/) • Please connect with us on Mastodon [\@openscapes\@fosstodon.org](https://fosstodon.org/@openscapes) or join [our newsletter](https://docs.google.com/forms/d/e/1FAIpQLSdgVXRp3V-w94GPWkR31RUfyBl37EphdQSlCOcnyeNlf8OLWw/viewform)
+Project announcements: [NASA](https://earthdata.nasa.gov/learn/openscapes) • [Openscapes](https://www.openscapes.org/blog/2021/03/10/nasa-announcement/) • Please connect with us on Mastodon [\@openscapes\@fosstodon.org](https://fosstodon.org/@openscapes) or join [our newsletter](https://docs.google.com/forms/d/e/1FAIpQLSdgVXRp3V-w94GPWkR31RUfyBl37EphdQSlCOcnyeNlf8OLWw/viewform)