In the Nov. 25 SN: Charting lumpy space, Bronze Age movers and shakers, T. rex’s slasher arms, gene editor corrects typos, the Great Pyramid hides a void, mosses chronicle Arctic warming, an itty-bitty insect-inspired robot and more.
When the tectonic plate carrying India
slammed into Asia about 50 million years ago,
the ensuing geological changes triggered a long-term cooling trend. That trend later
enabled Antarctic ice sheets to grow, a new study suggests.