Physics Today: Japan’s space agency JAXA announced this morning that its Akatsuki spacecraft did not enter a stable orbit around Venus. Launched on 21 May 2010, the 480-kg Akatsuki was equipped with a suite of imaging and spectral instruments, whose main goal was to study the Venusian atmosphere. In particular, the Akatsuki team hoped to determine whether Venus is volcanically active and whether its clouds produce lightning. JAXA has set up a panel to investigate the cause of the failure.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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