Green comet sighting: Here's when to see this celestial view unlikely to return for millions of years

This celestial sighting is a bit like space-speed dating. Astronomers only just learned of Comet C/2022 E3's existence, and it will be gone before we know it. Learn how it was discovered and why a naked-eye comet is rare.

1-on-1 with Buttigieg: Transportation secretary talks floods, flights and funding

U.S. Transportation Secretary Pete Buttigieg is back in Washington D.C. after a stop in San Francisco to deliver a federal grant for the Golden Gate Bridge. Buttigieg spoke to KTVU after his department announced $29.4 million in emergency relief funds to help California repair roads, bridges and highways damaged in our deluge of storms.

Moon will eclipse Mars next week; here's how and when to see it

It’s not every day the moon moves in front of a bright planet, but the likely once-in-a-lifetime event for some parts of the U.S. is happening soon.

Kobe Bryant helicopter tragedy: Honoring the 9 victims 3 years later

Three years ago, the world lost baseball coach John Altobelli, his wife Keri, and their daughter Alyssa; NBA legend Kobe Bryant and his daughter Gigi; Payton Chester and her mother, Sarah; educator and basketball coach Christina Mauser, and pilot Ara Zobayan.

NASA: Asteroid will miss but come close to Earth

NASA said Wednesday that this newly discovered asteroid will zoom 2,200 miles above the southern tip of South America.

Alabama airline worker who was sucked into plane engine remembered as 'loving mother' of 3 children

The Alabama airline worker who died after being sucked into a plane engine at Montgomery Regional Airport on New Year’s Eve is being remembered as a "loving mother" of three children. 

Marine Mammal Center hosts NOAA's administrator and staff; discuss concerns over new Congress

The Administrator of NOAA, and staff members, visited the Marine Mammal Center in the Marin Headlands. They came to see the operation, an important step in securing funding for several critical programs, that could be defunded by the new Congress.

NASA announces plan to test nuclear rocket engine for possible Mars mission

NASA says they are testing the rocket engine with a plan to have an in-space demonstration by 2027. This technology could help astronauts travel to and from planets faster.

NASA's Virginia rocket launch expected to be visible across DC area; lift off scheduled for Tuesday

UPDATE: NASA has canceled the Electron rocket launch scheduled for Monday, Jan. 23 due to unfavorable weather conditions. The launch has been rescheduled for Tuesday, Jan. 24 between 6 p.m. and 8 p.m.

Massive seal running amok in Australia town

A large seal was captured on video running through a small town in Australia this month. 

First Native American woman in space steps out on spacewalk

Nicole Mann, a Marine colonel and test pilot, rocketed into orbit last fall with SpaceX, becoming the first Native American woman in space. She is a member of the Wailacki of the Round Valley Indian Tribes in Northern California.

Watch: Drone video captures the world’s largest hatching of baby turtles

Between mid-December and early January, millions of baby river turtles emerged from the sandy beaches of the Amazon’s Guaporé/Inténez River.

Greenland is the warmest it's been in more than 1000 years, ice core data shows

Scientists say warming in Greenland in the past may have been masked by local weather variability. But not any more. Climate change is blowing that away.