Kayakers' shark encounter at Half Moon Bay caught on video

An Oakland man had a close encounter with a shark while kayak fishing in Half Moon Bay. Ian Walters said it happened last week while he and a friend were fishing for halibut and link cod. He shared with KTVU video he shot of the encounter.

Teenager going for a quick swim severely injured in shark attack

A 15-year-old girl from Aspen, Colorado, was severely injured in a shark attack while scuba diving in Belize this week, according to reports and a fundraising page set up for the teen.

'Double Arch' at Glen Canyon National Recreation Area has collapsed: National Park Service

The Double Arch, per park officials, was a frequently visited geological feature, and it collapsed on Aug. 8. Changing water levels and erosion are believed to have contributed to the collapse.

NASA: Astronauts waiting to come home might hitch ride with SpaceX crew

Two NASA astronauts who were supposed to return to Earth in mid-June may have to extend their stay for another six months and hitch a ride aboard a SpaceX spacecraft if issues with Boeing’s Starliner capsule continue.

Perseid meteor shower: Viewing conditions promise good show for best meteor shower of 2024

The Moon will be about 44% full this year for the Perseids peak, offering a better chance to spot meteors. Many regions of the U.S. will have a clear sky to watch the meteor shower.

Explosion at Yellowstone may have formed new geyser: here's how

The explosion at Yellowstone National Park’s Biscuit Basin area in July is not as uncommon as you may think as one expert weighs in on if the incident possibly formed a geyser.

Earth's days are getting longer, science explains why

New research reveals that Earth's days are gradually getting longer, and scientists explain the various factors behind this change. Discover how tectonic shifts, inner core dynamics, and climate change contribute to the lengthening of our days and what this means for our future.

Small plane crash lands in Livermore

An investigation by the FAA is underway after a small plane crash in East Bay.

August celestial events: Why the first week of August is a good time for stargazing

Discover why the first week of August is ideal for stargazing. Explore the new Moon, the Perseid meteor shower, and other celestial events that make this month perfect for skywatching.

Calgary Zoo polar bear drowns after rough play incident

A necropsy has confirmed that a polar bear at the Calgary Zoo died after rough playing with another polar bear.

Study: Wildfire smoke may be worse for your brain than other air pollution

Research shows wildfire smoke significantly raises dementia risk, with a 21% increase per 1 microgram of PM2.5, compared to other air pollution.

Surfer loses leg in fight with 10-foot great white shark

After the attack, Kai McKenzie managed to make it back to shore and his leg also washed ashore not long after.

Watch: Swarm of dragonflies invades Rhode Island beach, sends visitors fleeing

A relaxing day turned chaotic for beachgoers in Westerly, Rhode Island, as a massive swarm of dragonflies invaded Misquamicut State Beach on Saturday.