Understanding mRNA vaccines, summer heat and a meteor shower

Each week Hot off the Wire looks at a variety of stories in business, science, health and more. This week's headlines include:

FACT FOCUS: RFK Jr.'s reasons for cutting mRNA vaccine not supported by evidence.

Harvard scientists say research could be set back years after funding freeze.

What to know about past meetings between Putin and his American counterparts.

How Americans' views of racial discrimination have shifted since 2021, according to AP-NORC polling.

July was Earth's third-warmest on record, EU scientists say.

Americans get more than half their calories from ultra-processed foods, CDC report says.

Young adults are less likely to follow politics or say voting is important AP-NORC poll.

Summer's best meteor shower peaks soon. But the moon will interfere with viewing the Pe