Teacher quality scores change depending on students, school — ScienceDaily

School districts across the U.S. are increasingly using student test scores to rate the effectiveness of teachers, but a new Portland State University study found that the scores have less to do with individual teachers and more to do with their students and schools. Dara Shifrer, the study’s author and assistant professor of sociology at […]

2020 AGU Election Statistics – Eos

In its most recent biennial election, for which voting ended last month, AGU members chose 54 new leaders to serve 2-year terms in 2021–2022. Union officers, Board members, section officers, student and early-career representatives to the Council, and the College of Fellows vice chair were elected. Here the AGU Leadership Development/Governance Committee takes […]

Mars died billions of years ago and its guts are still spilling into space

Jezero Crater, the destination of the Perseverance rover, is one of many sites on Mars where ancient water flowed, suggesting that the planet once had a thicker atmosphere. (NASA/JPL-Caltech/MSSS/JHU-APL/) The Red Planet is a dead planet, but it may not have always been that way. Rovers and satellites have found clear evidence that the dusty […]

Survey: Americans likely to attend large holiday gatherings despite COVID-19

IMAGE: The West family shares a holiday meal with family members through video chat. Experts say that although celebrations will look different this year, there are still opportunities to make treasured… view more  Credit: All multimedia is available for free and unrestricted media use with courtesy to The Ohio State University Wexner Medical Center COLUMBUS, Ohio […]

Teacher quality scores change depending on students, school, study finds

Credit: Unsplash/CC0 Public Domain School districts across the U.S. are increasingly using student test scores to rate the effectiveness of teachers, but a new Portland State University study found that the scores have less to do with individual teachers and more to do with their students and the schools. The study looked at the value-added […]

Astronomers watched two neutron stars slam together and give birth to a magnetar

Two neutron stars slammed together far away from Earth. The energy of their collision lit up their corner of the sky with a brief flash of gamma radiation, followed by a softer, longer-lasting glow across the electromagnetic spectrum. Peering into that fading light, researchers spotted an unusual infrared signal — the first-ever recorded signature, they […]

Chemical reactions high in Mars’ atmosphere rip apart water molecules

Mars’ water is being skimmed off the top. NASA’S MAVEN spacecraft found water lofted into Mars’ upper atmosphere, where its hydrogen and oxygen atoms are ripped apart, scientists report in the Nov. 13 Science. “This completely changes how we thought hydrogen, in particular, was being lost to space,” says planetary chemist Shane Stone of the […]

New study reveals that the cortex — ScienceDaily

What happens in our brain that makes us experience the sweet taste of a donut or the bitter taste of tonic water? What are the patterns of neural activity responsible for the perception of taste? A new study from Stony Brook University found that the map of neural responses mediating taste perception does not involve, […]

Graumlich to Be AGU President-Elect/AGU Leadership Transitions

AGU members have elected paleoclimatologist Lisa Graumlich as the organization’s next president-elect, as well as 53 other Union officers, Board members, section officers, student and early-career representatives to the AGU Council, and the College of Fellows vice chair for the 2021–2022 leadership term. With more than 18% of our membership voting in our […]

Why you should think twice before opting for a valved N95 mask

A new paper from the National Institute of Standards and Technology helps demonstrate why one group of masks similar to those pictured here—valved masks—is almost as ineffective in controlling the spread of mouth particles as wearing no masks at all. (Pexels/) Mask-wearing has become a routine part of daily life as we try to curb […]