Rebecca Hersher

NASA has big hopes for virtual reality technology. The agency is developing a suite of virtual reality environments at Goddard Spaceflight Center in Maryland, that could be used for everything from geological research to repairing orbiting satellites.

One displays fiery ejections from the Sun. In another, scientists can watch magnetic fields pulse around the earth. A virtual rendering of an ancient lava tube in Idaho makes scientists feel like they're standing at the bottom of an actual cave.

Juan Flores and his family live in Galena Park, Texas, which is bordered on three sides by pipeline terminals, oil refineries, fertilizer plants and rail yards.

Flores has lived in the town of about 11,000 people just east of downtown Houston since he was 4 years old. For a while, he even served on the City Council.

Dr. Christopher Fisher was working at Sunrise Hospital and Medical Center just off the Las Vegas strip on Sunday evening when the patients starting arriving.

"It did look a bit like a war zone, can't say that it didn't," he remembers. "Frantic families, blood in the hallways."

People came in so grievously injured and so many at a time that Fisher, who is the medical head of trauma services for the hospital, and his colleagues used markers, writing directly on patients, to do triage.

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STEVE INSKEEP, HOST:

Hurricane Harvey flooded more than a dozen Superfund toxic waste sites when it devastated the Texas coast in late August. An EPA report predicted the possibility of climate-related problems at toxic waste sites like those in Texas, but the page detailing the report on the agency's website was made inactive months before the storm.

Flu symptoms can be more severe when you're pregnant, landing women in the hospital, threatening their lives and even leading to preterm birth or miscarriage. The virus is a risk to the woman and the baby.

So, it's particularly important that people who are pregnant get the flu vaccine. And it's also important that the effects of those vaccines be studied in pregnant women.

When Alexia Boggs was applying to law school, she initially considered all the big specialties, but none of them seemed quite right.

"I was looking for a field of law where none of my family could ever seek my help," she says, sarcastic but also not really joking.

On the first sunny day in Houston after about 50 inches of rain, residents in the east Houston community of Manchester emerged from their homes and gave thanks that their neighborhood had been spared in the floods. "Mama, yeah, I just feel blessed," said 73-year-old Maria Julia Rodriguez, standing in her driveway in late August and marveling at her luck. "God was looking out for us, I guess."

Medical workers in Houston are dealing with a secondary problem after last week's floods: Clinics that offer methadone and other opioid addiction therapies are just getting back up and running, and many people don't have access to the treatments they need.

Updated at 8:15 p.m. ET

Officials are still trying to confirm whether Texas floodwaters have spread contamination from decades-old toxic waste sites, as water recedes and residents return to homes that, in some cases, were flooded with water that passed over known contaminated areas.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

KELLY MCEVERS, HOST:

Some people have stayed in their homes, and that's been difficult, too, especially in low-income neighborhoods in east Houston. NPR's Rebecca Hersher talked to people there who are struggling to get the basics, like food, water and information.

Among the most pressing medical needs facing Houston at the moment: getting people to dialysis treatment.

At DaVita Med Center Dialysis on Tuesday afternoon, nurses tended to dozens of patients on dialysis machines while another 100 people waited their turn. Some were clearly uncomfortable, and a number said they hadn't been dialyzed in four days.

Those delays can be life-threatening.

Erica Brown called 911 for two days before a helicopter finally spotted her, trapped in her Houston home with her 7-month-old son and three other children. Sometimes when she called, she got nothing, just a busy signal and a disconnection. Multiple times she was told that they'd try to send help. Hours would go by with no rescue.

The family spent two nights in their trailer watching the floodwaters from Tropical Storm Harvey rise up the foundation. "It was a hard feeling because I thought me and my kids were going to lose our life in this hurricane disaster."

Updated at 7:00 p.m. ET

A man convicted of killing two people in what prosecutors argued were racially motivated murders in 1987 was executed by lethal injection on Thursday evening in Florida.

A concert in Rotterdam was canceled after Dutch police received a tip about a possible terror plot at the venue.

The American garage rock band Allah-Las was scheduled to perform on Wednesday night, but the event was called off after a warning from Spanish authorities led to the arrest of two men who officials suspected might be planning an attack, according to NPR's Soraya Sarhaddi Nelson.

As Soraya reported for NPR's Newscast unit:

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