FAA grounds SpaceX Falcon 9 rocket The action temporarily paused the Polaris Dawn mission, the private flight that was to include the first commercial spacewalk. Play AudioListen 4 mins
An empty Boeing Starliner is set to return next week, while its crew stays in space An empty Boeing Starliner is scheduled to return from the International Space Station in early September. It will fly home autonomously while its crew remains in space until February. Juliana Kim
A newly mapped underwater mountain could be home to 20 new species Researchers who led the 28-day expedition along the nearly 2-mile tall seamount hope the discoveries made will inform future policies safeguarding the understudied, high-seas region. Emma Bowman
Shohei Ohtani's dog 'throws out' 1st pitch at Dodgers game To the delight of the sellout crowd, the star player’s pup Decoy “threw out” the ceremonial first pitch before a game at the Los Angeles stadium against the Baltimore Orioles. Emma Bowman
Too hot for trout: Why some anglers are rethinking their approach to fly fishing As Western Montana's blue-ribbon trout waters warm due to climate change, anglers are increasingly wrestling with the ethics of their sport. Nathan Rott
Puente Hills fault poses bigger earthquake threat than the San Andreas A 4.4 magnitude earthquake in Los Angeles in August was along the Puente Hills fault system, a thrust fault that runs beneath one of the city's oldest and most densely populated areas. Play AudioListen 10 mins
Titanic research dive reveals discovery, decay and new photos This summer, RMS Titanic, Inc. — the salvor-in-possession of the wreck — made its first unmanned dive to the wreck in 14 years. The team uncovered some rare finds — and losses. Scott Detrow Avery Keatley Tinbete Ermyas Play AudioListen 6 mins
This metabolic brain boost revives memory in Alzheimer’s mice An experimental cancer drug that helps the brain turn glucose into energy was able to reverse memory loss in a mouse model of Alzheimer’s disease. Jon Hamilton Play AudioListen 4 mins
The world's longest trackway of dinosaur footprints is just a hike away More than 150-million years ago, a dinosaur longer than a school bus tromped through a squishy riverbed in southwest Colorado. Its footprints stayed there, frozen in time. Play AudioListen 6 mins
Beloved 'Russian spy whale' Hvaldimir is found dead under mysterious circumstances A beloved beluga whale with a mysterious past was found dead in the waters of Norway over the weekend. Admirers are paying tribute as authorities investigate. Rachel Treisman
