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.
BLACK HOLE BOUNTY Gravitational waves have been spotted from two merging black holes (illustrated above), the fifth reported detection.
Mark Garlick/Science Photo Library/Alamy Stock Photo
SWINGING BRIDGE When it first opened, crowds on the Millennium Bridge in London (shown) caused the bridge to sway wildly. Scientists have made improved simulations to determine the conditions that lead to such wobbly bridges.
CHOMPING AT THE QUBIT IBM announced two new advances to its quantum computing hardware (cooling system and other infrastructure shown): a 20-qubit processor that will be available commercially and a 50-qubit prototype currently undergoing testing.