The total solar eclipse of August 22, 1142, may have coincided with the birth of the Iroquois Confederacy, oldest democracy in North America and possibly on Earth.
NASA’s Opportunity rover spent some 15 years exploring Mars. It surpassed all expectations for its endurance and longevity, to become one of the most successful planetary missions. Then it went silent.
On the June solstice, the sun will set at the same time in New York City and St. Augustine, Florida. But New York will have an hour more of daylight. How’s that happen?
On May 6, 1968 – more than a year before his famous first moonwalk – Neil Armstrong narrowly escaped disaster during a training exercise, at the same time demonstrating the right stuff.
On April 10, 2013, one of the largest non-volcanic landslides in the history of North America took place at the Bingham Canyon mine in Utah.
Whales are magnificent creatures and … they produce their own rainbows. Photos and video here.
A new study suggests that reductions in water use for agriculture might be the best bet for avoiding future water shortages in the U.S.
In Chinese thought, spring is associated with the direction east, the sunrise direction as Earth spins us toward the beginning of each new day.
If there were no leap years, eventually February would be a summer month for the Northern Hemisphere. 2019 isn’t a leap year, but 2020 will be.
On this Valentine’s Day 2019, what the world of science suggests about the mystery we call love.
In 1963, astronomer Maarten Schmidt had a sudden revelation that quasars are exceedingly distant and unimaginably luminous. His insight changed our notion of what the universe is like.
An expert photographer of nature’s beauty on a minuscule scale, Michael Peres offers you tips on how you can photograph snowflakes.
On November 14, 1963, crew aboard a trawler sailing near Iceland spotted a column of smoke rising from the sea surface. A new island, Surtsey, was being born.
Mass and energy are interchangeable.
In China and other Asian countries, it’s sometimes called the Moon Festival in honor of the upcoming full moon.
American astronomer Asaph Hall discovered Phobos, 1 of the 2 known Martian moons, on this date in 1877.
What do you mean by noon? Do you define it by your clock or wristwatch? Or the gnawing in your stomach? Here’s how astronomers think about noontime.
The streaks in the photos are sun-trails – that is, they’re the sun moving in its shifting path across our sky from day to day over a 6-month period.
Cloud streets are long rows of cumulus clouds oriented parallel to the direction of the wind. Check out these cool images!
Want to brush up on your knowledge about these solar hiccups – CMEs, for short – that can ripple through our solar system and can interrupt satellites and power grids on Earth?
Moon, Aldebaran, Pleiades before bedtime