Posted inCalifornia

Woolsey Fire Led to Spike in Bacteria, Cloudiness in Coastal Waters

Scientists analyzed coastal water quality in the months following a major Southern California wildfire. Their results were eye-opening. The November 2018 Woolsey Fire in Southern California’s Los Angeles and Ventura counties left more than a nearly 100,000-acre burn scar behind: It also left the adjacent coastal waters with unusually high levels of fecal bacteria and […]

Posted inSci/Tech

NASA’s MRO Finds Water Flowed on Mars Longer Than Previously Thought

Caltech researchers used the Mars Reconnaissance Orbiter to determine that surface water left salt minerals behind as recently as 2 billion years ago. Mars once rippled with rivers and ponds billions of years ago, providing a potential habitat for microbial life. As the planet’s atmosphere thinned over time, that water evaporated, leaving the frozen desert […]

Posted inSci/Tech

NASA’s Juno Spacecraft ‘Hears’ Jupiter’s Moon

An audio track collected during Jupiter mission’s Ganymede flyby offers a dramatic ride-along. It is one highlights mission scientists shared in a briefing at American Geophysical Union Fall Meeting. Sounds from a Ganymede flyby, magnetic fields, and remarkable comparisons between Jupiter and Earth’s oceans and atmospheres were discussed during a briefing today on NASA’s Juno […]

Posted inSci/Tech

Emission Reductions From Pandemic Had Unexpected Effects on Atmosphere

November 9, 2021 – Earth’s atmosphere reacted in surprising ways to the lowering of emissions during the pandemic, showing how closely climate warming and air pollution are linked. The COVID-19 pandemic and resulting limitations on travel and other economic sectors by countries around the globe drastically decreased air pollution and greenhouse gas emissions within just […]

Posted inSci/Tech

Hear Sounds From Mars Captured by NASA’s Perseverance Rover

Two microphones aboard the six-wheeled spacecraft add a new dimension to the way scientists and engineers explore the Red Planet. Thanks to two microphones aboard NASA’s Perseverance rover, the mission has recorded nearly five hours of Martian wind gusts, rover wheels crunching over gravel, and motors whirring as the spacecraft moves its arm. These sounds […]

Posted inSci/Tech

My Favorite Martian Image: the Ridges of ‘South Séítah’

NASA’s Perseverance rover captures a geologic feature with details that offer clues to the area’s mysterious past. Ask any space explorer, and they’ll have a favorite photograph or two from their mission. For Jorge Núñez, an astrobiologist and planetary scientist working on the science team of NASA’s Perseverance rover, one of his current favorites is […]

Posted inEnviro

Icy ‘Glue’ May Control Pace of Antarctic Ice-Shelf Breakup

Researchers at NASA’s Jet Propulsion Laboratory in Southern California and the University of California, Irvine, have discovered an ice process that may have caused a Delaware-size iceberg to break off Antarctica’s immense Larsen C ice shelf in the Southern Hemisphere winter of 2017. The finding that mélange – a mixture of windblown snow, iceberg bits, […]

Posted inSci/Tech

NASA’s Perseverance Rover Collects First Mars Rock Sample

NASA’s Perseverance rover today completed the collection of the first sample of Martian rock, a core from Jezero Crater slightly thicker than a pencil. Mission controllers at NASA’s Jet Propulsion Laboratory (JPL) in Southern California received data that confirmed the historic milestone. The core is now enclosed in an airtight titaniumsample tube, making it available […]

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