Classic American Cryptids

Astronomers confirmed 2026 ED138 in archival images, but need better size measurements to determine whether it qualifies as a dwarf planet.

Choose a science kit your child will enjoy, learn from, and use safely. Compare age guidance, instructions, materials, and real value.

Scientists say the Arctic polar vortex is weakening unusually early, but its effects on North American temperatures remain uncertain.

The weekly ACX open thread shares reader announcements, a November 21 Pause AI protest notice, hiring information and a new Manila meetup.

Astral Codex Ten’s October links roundup covers AI forecasting, translation and art, alongside debates about marriage and other topics.

NASA’s October 27, 2026, Astronomy Picture of the Day features blue noctilucent clouds photographed above a field near Linköping, Sweden.

“Grotte de Veille — 90 Metres Below” — see it live. In…

See who benefits from the SHARE SLAM S20’s color capture, 1 cm stated accuracy and workflow exports, and who may be better served by another scanner.

The Dxtvate D500 offers 360° LiDAR scanning and a stated 12 m range. See who it suits, what the specs leave unclear, and when to choose another sensor.