mystery. houston police say a man who disappeared eight years ago was actually home the whole time the bizarre case. the company behind a doomed submersible makes a major announcement about its future. triple threat. what you need to know about the vaccines for flu, covid, and rsv, ahead of another tripledemic. and just in, approval for a groundbreaking drug to help slow alzheimer s disease, bringing new hope to millions announcer: this is nbc nightly news with lester holt good evening, and good evening, and welcome, everyone it would be easy to dismiss the heatwaves enveloping parts of the country as simply the price of summer. but the extreme temperatures and durations we are seeing are part of a disturbing trend worldwide as scientists say the planet is seeing some of its warmest days on record. here at home, some 24 million people are living under heat alerts the temperatures that have been broiling the southwest for weeks are expanding to florida and into t
millions more gasping for air under hazy skies. when can we expect any relief? a massive fire aboard a cargo ship at one of the nation s largest ports. two firefighters dead, and now questions about why they weren t trained to fight this kind of fire. the white house cocaine mystery. new details about where it was found in the west wing, and the warning why its owner may never be found. twitter versus threads. 30 million sign up in less than 24 hours. the looming legal battle and the big catch if you want to hit delete. missing man mystery. houston police say a man who disappeared eight years ago was actually home the whole time. the bizarre case. the company behind a doomed submersible makes a major announcement about its future. triple threat. what you need to know about the vaccines for flu, covid and rsv, ahead of another tripledemic. and just in, approval for a groundbreaking drug to help slow alzheimer s disease, bringing new hope to millions. announcer:
northeast to the southwest. when it is 90 degrees out, you know, it s just it s too hot. the city of newark lost two of its bravest in a cargo ship fire. the firefighters died while battling flames that broke out last night on the tenth floor of the ship. instagram now has a new app. it is called threads. the app is seen as the most fierce competition yet to social media powerhouse to twitter. we ve got the digital cage match, that is what this play is for mark zuckerberg. he is playing to his ego while being able to undercut elon musk. jericka: russian police allegedly raid yevgeny prigozhin s mansion nearly two weeks after his armed revolt. but the mystery tonight, where is the wagner group s leader? alzheimer s breakthrough? the fda improves a drug that could slow down the progression of the disease. it s a miracle, in my view, that i can stay active and healthy and with it. they are a public health threat called pfas, forever chemical
dangerous heat stretches from a northeast to the southwest. when it is 90 degrees out, you know, it s just it s too hot. speak of the city of newark last two of its bravest and a cargo ship fire. the firefighters died while battling flames that broke out last night on the tenth floor of the ship. instagram now has a new app, it is called threads. the app is seen as the most fierce competition yet to super media powerhouse to twitter. speak of the digital cage match, that is what this play is for mark zuckerberg purely is playig to his ego while being able to undercut elon musk. jericka: russian re police allegedly raid yevgeny yevgeny prigozhin s mansion after armed revolt. the question tonight is, where is the wagner group s leader? alzheimer s breakthrough? the fda improves a drug that jet could slow down the progression of the disease. it is a miracle, in my view, that i can stay active and healthy and with it. they are a public health threat,
emergency teams say they were not trained for this type of blaze. trevor ault is at the port. the earth s three hottest days on record. one day right after another. tonight, 26 million americans under heat alerts as we come on the air. scorching and dangerous temperatures spreading nationwide. rob marciano standing by. the new rare videos tonight. russian fighter jets harassing american drones over syria for the second day in a row. the war in ukraine. russia conducting a deadly attack against civilians in lviv. at least seven people killed. dozens more injured. martha raddatz in the battle zone, sitting down with ukrainian president zelenskyy. what he says about the counteroffensive and his fears of a nuclear disaster. arraignment day for walt nauta. president trump s loyal aide and co-defendant, accused of helping the former president hide classified documents at mar-a-lago, facing a judge after two previous delays. threads of success. the new social media platfor