Margaret Hamilton is not only one of the first software developers, but she also literally created the term “Software Engineering” to describe her work. The code she wrote successfully put humans on the moon for the first time.
Continue reading “Margaret Hamilton, the first software engineer [her code got humans on the moon!]”First Flower Grown in Space
A beautiful photo showing the first flower grown in space (a zinnia flower) with our beautiful Earth in the background. Now retired NASA astronaut Scott Kelly shared p
The urbanization of the world
The world has been urbanizing rapidly in recent decades. In 1950, only 30 percent of the world’s population lived in urban areas, a proportion that grew to 55 percent by 2018. The global urbanization rate masks important differences in urbanization levels across geographic regions.
Northern America is the most urbanized region, with 82 percent of its population residing in urban areas, whereas Asia is approximately 50 percent urban, and Africa remains mostly rural with 43 percent of its population living in urban areas in 2018 (United Nations, 2018).
Continue reading “The urbanization of the world”African musicians protest the destruction of the environment with a song titled “Samalilani” (Preserve)
Musicians from Zambia (Africa) protest the destruction of the environment and the wildlife with the song titled “
Voyager 1: How far can it go before we lose contact?
Launched by NASA on September 5, 1977, to study the outer solar system, the Voyager 1 is the furthest human-made object from Earth. As of October 2022, it is more than 14,749,847,051 miles (23,737,577,852 km) away from our home planet. It is also moving away at a speed of 38,026.77 mph (61,198.15 km/h) relative to the Sun.
Despite that huge distance (even the light covers that distance in almost 22 hours!), thanks to NASA’s Deep Space Network (DSN), we can still communicate with it (also with its sister, Voyager 2). But how far can Voyager 1 go before we lose communication?
Continue reading “Voyager 1: How far can it go before we lose contact?”SpaceX Starhopper, Starship and Super Heavy Booster 3D Models Comparison
Finnish 3D artist Kimi Talvitie has made some really impressive 3D models of SpaceX’s stainless steel Starhopper (the shorter test vehicle of Starship), Starship (previously known as the BFS – Big Fragging Spaceship) and Super Heavy booster (previously known as the BFR – Big Fragging Rocket) and published them on his Twitter account. They are amazing!
Continue reading “SpaceX Starhopper, Starship and Super Heavy Booster 3D Models Comparison”SpaceX’s first Crew Dragon on the launchpad
A beautiful photo! SpaceX’s first Crew Dragon, which will carry astronauts to and from the International Space Station (ISS) is on the launchpad with the new astronaut walkway ahead of the first major test flight.
Continue reading “SpaceX’s first Crew Dragon on the launchpad”What if the Earth was tidally locked to the Sun?
We only see one side of the moon, because it is tidally locked to the planet Earth (tidal locking the situation when an object’s orbital period matches its rotational period). What if the Earth was tidally locked to the Sun?
Continue reading “What if the Earth was tidally locked to the Sun?”Astronauts demonstrate Newton’s second and third laws of motion
A microgravity environment is a perfect place to demonstrate basic physics, i.e. Newton’s laws of motion. In the videos published by the NASA Johnson channel, astronauts aboard the International Space Station (ISS) just do that.
Continue reading “Astronauts demonstrate Newton’s second and third laws of motion”486958 Arrokoth image against a starry background
A beautiful 486958 Arrokoth image (initially nicknamed Ultima Thule) taken by the Long Range Reconnaissance Imager (LORRI) aboard NASA’s New Horizons spacecraft in original context against a starry background (i.e., not zoomed in).
Continue reading “486958 Arrokoth image against a starry background”