https://www.cnet.com/news/jeff-bezos-blue-origin-to-return-to-space-after-6-month-break/

The payloads include experiments to study things like Earth's electromagnetic field, measuring fuel levels using sound waves and ways to keep tightly packed electronics cool. The full list of projects can be found on Blue Origin's website.

The launch was originally set for December, but got scrubbed due to "a ground infrastructure issue." After fixing the issue and reviewing other systems, lift-off was rescheduled for Monday, but forecast high winds pushed the mission again to Wednesday.