Doubling the Number of Known Gravitational Lenses
Machine learning key to discovery of over 1200 gravitational lenses
CosmoView Episode 19: Doubling the Number of Known Gravitational Lenses
KPNO/CTIO/NOIRLab/NSF/AURA/Legacy Imaging Survey
Gravitational lenses found in the DESI Legacy Survey data. Examples of gravitational lenses found in the DESI Legacy Survey data.
KPNO/CTIO/NOIRLab/NSF/AURA/Legacy Imaging Survey
Gravitational lens found in the DESI Legacy Survey data. An example of a gravitational lens found in the DESI Legacy Surveys data. The nearly complete circle in the middle of DESI-015.6763-14.0150 is the image of a background galaxy, gravitationally warped (lensed) by the red galaxy at the center into a near-perfect Einstein ring.
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VIDEO: This is CosmoView Episode 18 for press release noirlab2103: Giant Map of the Sky Sets Stage for Ambitious DESI Survey view more
Credit: Images and Videos:
KPNO/CTIO/NOIRLab/NSF/AURA/Legacy Imaging Survey, P. Marenfeld, D. Munizaga, Lawrence Berkeley National Lab.
Music: Stellardrone - Airglow.
Astronomers using images from Kitt Peak National Observatory and Cerro Tololo Inter-American Observatory have created the largest ever map of the sky, comprising over a billion galaxies. The ninth and final data release from the ambitious DESI Legacy Imaging Surveys sets the stage for a ground-breaking 5-year survey with the Dark Energy Spectroscopic Instrument (DESI), which aims to provide new insights into the nature of dark energy. The map was released today at the January 2021 meeting of the American Astronomical Society.
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New research suggests that our personalities are far from fixed and, with effort, we can transform ourselves in real and meaningful ways.
Driving home from a family gathering or a dinner with friends, you might conjure up a being who looks like you but behaves differently. He or she was more gregarious at the party, slower to anger at a sister-in-law’s snarky comments and assertive when a colleague offhandedly dismissed a solid proposal.
Pretty much all of us, psychologists say, harbor visions of a new and improved version of ourselves. “A vast majority of people want to change at least some aspect of their personality,” says Nathan Hudson, Ph.D., a researcher at Southern Methodist University in Dallas. A study he co-authored found that when it came to tweaking personality traits, 87 percent of participants wanted to become more extroverted while 97 percent said they’d like to increase their conscientiousness.
One of the highest ranking Indian-American civilians in the US Department of Defense, Iyer, who holds a Ph.D. in Electrical Engineering, serves as the principal advisor to the Secretary of the Army and directs representation of the secretary in matters relating to information management/information technology (IT), the Pentagon said in a statement.