…Except for Mab, which is even weirder than expected.
Space & Planets
Maybe That’s Not Liquid Water on Mars After All
A “very large roll” of a radar instrument offers new insight into a highly reflective area near the Martian south pole.
Sediments Hint at Large Ancient Martian Moon
Regular, alternating layers in Gale Crater may have been deposited as the result of tides raised by a moon at least 18 times the mass of Phobos, a study says.
Key Driver of Extreme Winds on Venus Identified
A new study suggests that a once-daily atmospheric tidal cycle may be a bigger driver of rapid Venusian winds than previously thought.
Speedy Flyby Adds New Organics to Enceladus’s “Primordial Soup”
A new analysis of old Cassini data has also verified past detections of complex organics in Saturn’s E ring, strengthening the chemical ties between the ring and its progenitor.
A Weak Spot in Earth’s Magnetic Field Is Going from Bad to Worse
This could be bad news for satellites and spacefarers.
What Tumbling Asteroids Tell Us About Their Innards
Data from the Gaia space observatory reveal that many slowly spinning asteroids rotate chaotically. A new theory links that chaos to their inner structure and history.
Webb Telescope Spies Io’s Volcanic Activity and Sulfurous Atmosphere
New James Webb Space Telescope images reveal cooling lava, volcanic sulfur monoxide gas, and sulfur gas emissions created by interactions between plasma and the moon’s atmosphere.
Martian Dust Devils Reveal Dynamic Surface Winds
A new wind map covering the whole of Mars includes some of the fastest winds ever detected on the Red Planet.
Tiny Uranian Moon Likely Had a Massive Subsurface Ocean
Ariel’s tempestuous subsurface ocean may have once composed more than half its total volume.
