- See the new Webb images of a “fiery hourglass” protostar;
- Learn why we might need to change the duration of a “second”;
- Fermilab reviews the history of physicists calculating the speed of gravity;
- SciShow breaks down why some astronomers “listen” to space;
- PBS Space Time asks: what if humanity is among the first spacefaring civilizations?
- Watch a livestream of aurora borealis from Fairbanks, Alaska. (2:50:12)