The threat from space rock 2024 YR4 has surpassed that of Apophis, an asteroid feared by scientists 20 years ago. The danger remains low, but experts are estimating the damage that could be done.

On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

When was Pluto discovered? Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory ...

Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.

These popular astronomy questions, answered by Astronomy magazine, will help you better understand our universe - and share ...

Arizona is most definitely a bucket list state, stacked with unique landscapes found nowhere else, and one-of-a-kind ...

Pluto constantly erases old blemishes and refreshes its exterior as remnant heat in the interior powers geological ...

On the second Tuesday of each month, it stops at Aspire Transitional Care 9:30-10:30am, at Flagstaff Senior Meadows 11am-12pm ...

Two colossal canyons on the moon, both deeper than the Grand Canyon, were formed in under ten minutes by surges of high-speed rock debris, as per reports. These valleys, named Vallis Schrödinger and ...