Two Light Sensors on One Satellite Disagreed in 1979, and So Did Washington

Controlled arterial CO2 matched adenosine’s blood-flow response in dogs. In healthy men it reached less than half of adenosine’s flow, and the one patient trial ended with no posted results.

Georgia released a former Lockheed reactor site in 1972. Four years later, a closer state survey found cobalt-60 hot spots in every once-licensed area, and visitors had been eating at slabs from its old hot cell.

Dust sampled in Gallup after the 1979 Church Rock tailings spill showed only background radioactivity. The spill’s record was in the riverbed, sorted into pockets by the flood’s energy, along a reach far longer than the stretch that was cleaned.

A retired hospital cobalt-60 unit was sold for scrap and cut open in a Thai scrapyard. Ten people received high doses and three died, and it took 17 days for anyone to suspect radiation.

A discarded cesium-137 radiotherapy unit left in an abandoned Brazilian clinic ended up in a scrapyard and in homes. The IAEA’s reconstruction separates radioactive material present, contamination of places, and actual exposure of people.

Is small modular reactor waste worse than a large plant’s? A 2022 PNAS paper said three designs could produce far more per unit of energy. A national laboratory later studied three other designs and disagreed, showing why design details matter.

Sunflower rafts at Chernobyl worked on contaminated water, not soil, yet the popular story blurred the two. Measurements from Fukushima rice fields show why the difference matters for any plant-based cleanup of cesium.

A cancer-therapy machine sold as scrap for $10 in 1983 was melted into rebar and table legs, exposing about 4,000 people. It came to light only when a truckload of radioactive steel took a wrong turn at Los Alamos.

Four northeast Georgia counties diagnose thyroid cancer at about twice the state rate, yet Georgia’s public cancer reports omit thyroid entirely. Three decades of industrial release data do not match the pattern, and the registry breakdowns that could narrow the explanations remain unpublished.

A tiny cesium-137 capsule lost in a quarry ended up inside an apartment wall in Kramatorsk, Ukraine. Residents fell ill and died for years, and accounts still disagree on how many deaths and illnesses the source caused.

Hanford’s 1949 Green Run released iodine-131 from fuel cooled only 16 days, yet who proposed and approved the experiment remains publicly unresolved.

The trade association says more than 40% of rural hospitals have negative operating margins and expects federal changes to add strain. Managers and policy watchers should separate its measured figures from its forecasts and policy requests.

A radiotherapy source melted in a Spanish steel mill in 1998, and the mill’s own detectors missed it. Air filters in Switzerland, France and Italy caught the cesium first, setting off a hunt for its origin.

RadNet says it will buy ONRAD, a teleradiology and hospital staffing group, for cash, shares and a possible earnout. The deal is unclosed, and the announcement leaves open contract, pricing and AI workflow questions.

Heartflow alleges patent infringement and trade secret misappropriation over Elucid’s FFR-IQ, and Elucid says it will defend itself. For CCTA departments, the filing is a legal dispute whose claims remain allegations, not findings.

RSNA and ACR both want performance tracked in clinical use, not only at FDA review. The comments respond to an exploratory paper, so nothing commits the agency to act on the societies’ requests.

A scrap market in New Delhi became a radiological emergency when a university’s discarded irradiator was cut apart. Investigators traced cobalt-60 slugs back to their source, but the case left one death, several injuries and a revised Level 4 rating.