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These days I am putting the finishing touches on a hybrid algorithm that optimizes a system (a gamma-ray observatory) by combining reinforcement-learning with gradient descent. Although I published an optimization strategy for that application already, I am going back to it to demonstrate a case where the simultaneous>
A team of researchers that has spent years searching for the earliest objects in the universe now reports the detection of what may be the most distant galaxy ever found. Adi Zitrin, a NASA Hubble Postdoctoral Scholar in Astronomy, and Richard Ellis, a professor of astrophysics at University College, London, have>
Environmental Working Group recently rolled out its annual Dirty Dozen list of foods that ... wait, did they?This year, no one seems to know or care if a group of lawyers paid an intern to go through USDA pesticide data and did simple arithmetic to declare how 'toxic' fruit was unless the pesticides on it were made>
A gravity model of the Earth constructed with data from GRACE. Credit: University of Texas Center for Space Research and NASAIt is all about gravity these days. First came GRACE (Gravity Recovery and Climate Experiment) and then we'll have GOCE (Gravity field and steady-state Ocean Circulation Explorer). I'll reveal>
In 1957, when the USSR launched Sputnik, it began a new era in the Cold War. The Race to Space. Senator Lyndon Johnson worried the commies could rain nuclear bombs down on us from the high ground, making him the perfect guy to run NASA and because it was a military concern it got funded. Only later it>
Researchers at the Fraunhofer Institute have taken a page from sports physiology and developed a low-cost optical sensor to measure the force with which tiny, migrating somatic cells push themselves away from an underlying surface. Force analysis devices like these could help to identify specific cell types more reliably>
