Reports and Proceedings

The first high-quality genome of the desert locust—those voracious feeders of plague and devastation infamy and the most destructive migratory insect in the world—has been produced by U.S. Department of Agriculture Agricultural Research Service scientists. The genome of the desert locust (Schistocerca gregaria) is enormous at just under 9 billion base pairs, nearly three times the size of the human genome. The size of the desert locust’s chromosomes is remarkable; compare them to those of the model fruit fly Drosophila melanogaster, the first insect genome ever assembled. Many of the desert locust’s individual chromosomes are larger than the entire fruit fly genome. Next to the fruit fly, it’s like an 18-wheeler next to a compact car.

The work, led by Johns Hopkins University, the Georgia Institute of Technology, and University of Washington researchers, is believed to be the first to show that robots loaded with an accepted and widely used model operate with significant gender and racial biases. The work is set to be presented and published this week at the 2022 Conference on Fairness, Accountability, and Transparency.

A new low-loss transmitter allows higher precision low-orbit satellite earth monitoring, according to a study by Tokyo Tech researchers. The novel transmitter works in the Ka band of the microwave frequency spectrum, where no efficient transmission has been possible so far. By using circularly polarized signal, and an innovative internal calibration scheme, efficient transmission with low signal noise and wide-angle scanning is demonstrated.

The Webb team has now approved 10 out of 17 science instrument modes; since last week we added (14) MIRI imaging, (2) NIRCam wide-field slitless spectroscopy, and our final NIRISS mode, (10) single-object slitless spectroscopy. As we ramp down the final commissioning activities, some openings in the schedule have appeared. The team has started to take some of the first science data, getting it ready to release starting July 12, 2022, which will mark the official end of commissioning Webb and the start of routine science operations.

Astronomers discovered a rocket body heading toward a lunar collision late last year. Impact occurred March 4, with NASA's Lunar Reconnaissance Orbiter later spotting the resulting crater. Surprisingly the crater is actually two craters, an eastern crater (18-meter diameter, about 19.5 yards) superimposed on a western crater (16-meter diameter, about 17.5 yards).

Researchers from the Universidad Carlos III de Madrid (UC3M) and the Universidad Complutense de Madrid (UCM) have designed and patented a new device for carrying out knee rehabilitation and strengthening exercises.