Today is the 48th anniversary of humanity’s historic first steps on the moon. The story in pictures, here.
The world watched on television as Neil Armstrong took the first steps on the moon's surface on July 20, 1969. It was the first time humans walked another world. As he stepped onto the lunar surface, Armstrong said, "That is one small step for [a] man, one giant leap for mankind."
Shadow bands are elusive ripples of alternate light and dark, flitting over the ground or the sides of buildings during a total solar eclipse. How to take part in an International Shadow Band Campaign during the August 21 eclipse.
Read more about shadow bands via Wolfgang Strickling.
She was an outstanding mathematician and first woman to receive the prestigious Fields Medal. Maryam Mirzakhani died on July 14 after a several-year battle with breast cancer.
Maryam Mirzakhani, the first and to-date only woman to win the Fields Medal in mathematics. Image via Stanford University.
Asteroid 2012 TC4 might give Earth a close shave in October, 2017. Or the asteroid could pass more distantly. Astronomers are keen to observe it now, to learn more about its orbit.
Asteroid 2012 TC4 as seen by the Remanzacco Observatory team of Ernesto Guido, Giovanni Sostero, Nick Howes on Oct. 9, 2012.
Image via phys.org.
All you need to know about 2017’s major meteor showers. Next good opportunity is late July and early August. Watch between midnight and dawn, when the moon is down. You won’t catch a magnificent display, as in some years, but you might see some!
Taken during the 2015 Perseid meteor shower in August - at Mount Rainier National Park - by Matt Dieterich. He calls the photo 'Skyfall.'
Here’s why, after a 2000-era plateau, global levels of the greenhouse gas are hitting new highs.
Methane bubbles trapped in ice on Abraham Lake, in Alberta, Canada, during winter 2016-17. In the summer, the gas (produced by microbes in the lake sediments) escapes into the air—a process scientists have demonstrated with unconventional methods. Photo via Flickr user/juneaidrao.
On July 14, an amateur group in Russia launched a small satellite called Mayak. They said it would become the “brightest shooting star” in the sky. Why’d they do it? Here’s how to look for it.
Artist's illustration of Russian Mayak satellite in orbit, with its reflectors unfurled, via Mayak.
Researchers identified simple behavioral rules that allow these tiny creatures to collaboratively build elaborate structures – rafts and towers – with no one in charge.
How do they each know what to do? Image via Tim Nowack.
To celebrate the 2-year anniversary of New Horizon’s flyover of the Pluto system, NASA released these 2 cool videos. Sail over the surface of Pluto and its large moon Charon.