Gene Cernan, last astronaut to walk on the moon, dies at 82

Former astronaut Gene Cernan, who as the last person to walk on the moon returned to Earth with a message of "peace and hope for all mankind," died on Monday, his family said. He was 82.

Cernan was with his relatives when he died at a Houston hospital following ongoing heath issues, family spokeswoman Melissa Wren told The Associated Press. His family said his devotion to lunar exploration never waned.

"Even at the age of 82, Gene was passionate about sharing his desire to see the continued human exploration of space and encouraged our nation's leaders and young people to not let him remain the last man to walk on the Moon," his family said in a statement released by NASA.

Scientists: Moon over the hill at 4.51 billion years old

It turns out the moon is older than many scientists suspected: a ripe 4.51 billion years old.

That's the newest estimate, thanks to rocks and soil collected by the Apollo 14 moonwalkers in 1971.

A research team reported Wednesday that the moon formed within 60 million years of the birth of the solar system. Previous estimates ranged within 100 million years, all the way out to 200 million years after the solar system's creation, not quite 4.6 billion years ago.

Brightest moon in almost 69 years lights up sky around globe

The brightest moon in almost 69 years is lighting up the sky in a treat for star watchers around the globe.

The phenomenon known as the supermoon reached its peak luminescence in North America before dawn on Monday. Its zenith in Asia and the South Pacific was Monday night. Across the international dateline in New Zealand, it was to reach its brightest after midnight Tuesday local time.

Astronaut Edgar Mitchell, 6th man on moon, dies in Florida

Apollo 14 astronaut Edgar Mitchell, who became the sixth man on the moon when he and Alan Shepard helped NASA recover from Apollo 13's "successful failure" and later devoted his life to exploring physics, the mind, and unexplained phenomena such as psychics and aliens, has died in Florida. He was 85.

Mitchell died Thursday night at a West Palm Beach hospice after a short illness, his daughter, Kimberly Mitchell, said. Mitchell's passing coincides with the 45th anniversary of the Apollo 14 mission from Jan. 31-Feb. 9, 1971.

New evidence points to giant 9th planet on solar system edge

The solar system may have a ninth planet after all.

This one is 5,000 times bigger than outcast Pluto and billions of miles farther away, say scientists who presented "good evidence" for a long-hypothesized Planet X on Wednesday.

The gas giant is thought to be almost as big as its nearest planetary neighbor Neptune, quite possibly with rings and moons. It's so distant that it would take a mind-blowing 10,000 to 20,000 years to circle the sun.

Sunday marks 49 years since Lunar Orbiter 1 photo

The first ever photo of Earth taken from another world was snapped on Aug. 23, 1966. The photo was taken from the Lunar Orbiter One, which captured the image from near the surface of the moon 13 days after it was launched from Cape Canaveral, Fla.

AP PHOTOS: Lunar show illuminates world's skies

A girl plays with a dog as a perigee moon, also known as a supermoon, rises in Madrid, Sunday, Aug. 10, 2014. The phenomenon, which scientists call a perigee moon, occurs when the moon is near the horizon and appears larger and brighter than other full moons. 

Buzz Aldrin: Where were you when I walked on moon?

On July 20, 1969, Buzz Aldrin was "out of town" when the world united and rejoiced in a way never seen before or since.

He and Neil Armstrong were on the moon.

They missed the whole celebration 45 years ago this Sunday. So did Michael Collins, orbiting solo around the moon in the mother ship.

Now, on this Apollo 11 milestone — just five years shy of the golden anniversary — Aldrin is asking everyone to remember where they were when he and Armstrong became the first humans to step onto another heavenly body, and to share their memories online.