STEM Saturday Post Promotion #32: Celebrating the last STEM Saturday of 2022

As a special holiday weekend celebration of STEM Saturday, this week I promoted three posts to the top of the /promoted feed. @o1eh discusses the theory that we are currently observing the planet's seventh wave of mass extinctions (Are We Witnessing a Mass Extinction?); @sarahjay1 tells us about two artificial radio signals that were observed by the SETI Institute - these might be sourced from distant planets, but it's more likely that they're man made (SETI Astronomers find two potential technosignatures after examining 12 exoplanets); and @jorgebgt writes about Soyuz spacecraft problems that prevented a spacewalk by Russian cosmonauts on the ISS (Problems on the ISS).

Welcome to our 32^nd STEM Saturday post promotion on the Steem blockchain. In celebration of the occasion, I have once again promoted a Popular STEM post to the top of the /promoted list.

This marks the thirty-second consecutive Saturday that our community has held the top of the /promoted page.

As previously announced, the promoted post(s) will be pinned in our community, and will remain pinned until payout time or until dropping out of the top-2 promoted posts for our community.

The Post

This week's promoted posts were:

• Are We Witnessing a Mass Extinction? by @o1eh
• SETI Astronomers find two potential technosignatures after examining 12 exoplanets by @sarahjay1
• Problems on the ISS by @jorgebgt

As with prior weeks, all three posts were passed through three separate online plagiarism checks before promotion.

Here are the posts at the top of /promoted:

Promotion Cost

In order to promote the posts, I burned 0.012 SBD for each, totaling 0.036 SBD (equivalent to about ¹/₄ STEEM) by sending it to @null with the memo field set to: @[ACCOUNT]/[PERMLINK].

The Community

The Popular STEM community is intended to be a place for accessible STEM conversations (Science, Technology, Engineering, and Mathematics). If you have an interest in STEM topics, please come join us!

About STEM Saturday

If members would like to have your own STEM content considered for future promotions, please come join us and start contributing. I don't know how long I'll be continuing the tradition, but while I do, here are the minimum requirements for consideration (subject to change without notice ;-).

1. Original, plagiarism-free content
2. Minimum word count: currently 300 words, but this may be adjusted.
3. The content must not be cross-posted on other web sites or blockchains. Correct use of the #steemexclusive tag is encouraged.
4. English language. (sorry, it's the only one I know)
5. Because a post leaves /promoted at payout time, posts created shortly before STEM Saturday may be more likely to be chosen than older posts.

All community members are invited to create original and exclusive content that can be considered for future promotions.

Please help grow the science & technology audience on the Steem blockchain by following the Science and Technology on the Social Blockchain Facebook page then liking & sharing our links!

Visit the /promoted page and #burnsteem25 to support the inflation-fighters who are helping to enable decentralized regulation of Steem token supply growth.