3 shark attacks off Sydney in just over 24 hours; man, boy in critical condition

Three shark attacks in 24 hours leave a man and a 12-year-old critically injured and another boy unharmed at Sydney beaches. Here’s what we know.

Watch: Fascinating video shows plant 'breathing'

Using the new "Stomata In-Sight" tool to observe the microscopic movements of the stomata on plants, scientists can then help develop and breed crops that can grow in areas that experience more drought-like conditions.

Giraffe dies at Toronto zoo in 'sudden and tragic' accident

The Toronto Zoo is mourning the death of its 13-year-old male giraffe after an unexpected accident in its habitat on New Year’s Day.

Quadrantid meteor shower peaks Friday night but bright supermoon may hinder visibility

The New Year brings a double feature celestial performance as the year’s first supermoon and Quadrantid meteor shower go head-to-head in the night skies Friday.

Pilot reports UFO beside jet, ATC jokes: 'Good luck with the aliens'

A newly resurfaced aviation audio clip shared online has drawn attention after a private pilot reported encountering a mysterious object while flying over Rhode Island.

Video: Muddy eruption at Yellowstone’s Black Diamond Pool

A muddy eruption at Yellowstone National Park was just captured on camera in an area that has been closed to the public for hazard assessments.

Blue Origin rocket launches first wheelchair user into space

Michaela Benthaus, a paraplegic engineer for the European Space Agency, became the first wheelchair user in space Saturday.

Blue Origin's historic rocket launch scrubbed Thursday

Blue Origin’s 37th New Shepard rocket launch was set to lift off Thursday from West Texas, but it was scrubbed at the last minute.

Minnesota walleye fishing: DNR considers reducing statewide limit

The Minnesota Department of Natural Resources is considering a reduction in the statewide walleye possession limit for the first time in decades.

3I/Atlas making closest approach to Earth this week

The interstellar comet known as 3I/Atlas will pass within 167 million miles of our planet Friday – the closest it gets on its grand tour of the solar system. Here's what to know.