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This artist's impression shows the surroundings of a supermassive black hole, typical of that found at the heart of many galaxies. The black hole itself is surrounded by a brilliant accretion disc of very hot, infalling material and, further out, a dusty torus. There are also often high-speed jets of material ejected at the black hole's poles that can extend huge distances into space.

Carlo Rovelli's new book is a gem: It's full of wonderful analogies and imagery — and is a celebration of the human spirit, in "permanent doubt, the deep source of science," says Marcelo Gleiser.

A conservative think tank said that the Health and Human Services announcement doesn't go far enough and that Secretary Alex Azar "should redirect those funds to modern science and better alternatives."

Health And Human Services Says It's Reviewing Use Of Fetal Tissue For Research

The audit has been called a political gesture to placate anti-abortion groups that oppose use of the tissue. Fetal tissue has played a part in developing vaccines and medical treatments.

FAA Slowly Lifting Ground Stop In West After Technical Problem

Airplanes at airports in some Western states, including California, were grounded because of computer problems. Las Vegas, Salt Lake City and Los Angeles saw major delays.

Review: Palehound, 'Dry Food'

Ellen Kempner and her band document a fraught transition from childhood to adulthood — and do a great job, in part because they're still living through the process.

Faulconer Defeats Alvarez For Mayor; Vows To Unite San Diego

New San Diego Mayor-elect Kevin Faulconer, who defeated fellow Councilman David Alvarez by a wide margin on Tuesday, vows to be an independent leader for all San Diegans.

Rep. Jason Chaffetz, who is running to be speaker of the House, has some foes in Washington for going after Planned Parenthood and the Secret Service. But his constituents say they appreciate him standing up for conservative values.

5 Things You Should Know About Jason Chaffetz

The Utah congressman who's challenging House GOP Majority Leader Kevin McCarthy is praised for sticking to his core principles and derided for

A 1935 recommendation to sterilize a 23-year-old male patient at Pacific Colony, based a supposed IQ of 75. His foster mother refused the sterilization. The outcome of this case is unknown, but in some instances medical superintendents disregarded such appeals.

On A 'Eugenics Registry,' A Record Of California's Thousands Of Sterilizations

NPR's Ailsa Chang speaks with University of Michigan professor Alex Stern, who has completed a database of the thousands of people recommended for sterilization when California had eugenics laws.

A "cluster of mysterious bright spots" can be seen on the dwarf planet Ceres, NASA says. The image was taken by the Dawn spacecraft, in orbit of Ceres.

NASA Flummoxed By Dwarf Planet's Bright Spots, 'Pyramid-Shaped Peak'

The view captured by the Dawn spacecraft this month "shows even more small spots in the crater than were previously visible," NASA says.

Juan Felipe Herrera Discusses Border Walls And Poetry

Juan Felipe Herrera, the first Latino U.S. Poet Laureate, spoke to KPBS about President Donald Trump’s border wall, the power of language and art in general.

Renouncing Pablo Escobar's Sins, His Son Trafficks In Motivational Talks

Drug czar Pablo Escobar's son studied to be an architect. But his late father's notoriety interfered with business, so today he's a speaker urging kids to stay away from drugs.

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