How do scientists know so much? (From Mystery Science) Science News for Students (website) Science Friday (podcasts, news, remote lessons, and more) Explainer: the making of a snowflake (from Science News)
Touchdown on Mars: Perseverance Roverś descent and landing - Feb. 18, 2021 (NASA footage)
Most teachers don't teach climate change; 4 of 5 parents wish they did (NPR story; 4/22/19) APOLLO 11: Buzz Aldrin sets foot on the moon (July 1969) (NASA video)