An interesting question: if you look up in the Earth’s sky with the naked eye, assuming you have a healthy vision, how far away can you see? Could you see beyond the Milky Way galaxy, for example?
Author: M. Özgür Nevres
I am a software developer and a science enthusiast. I was graduated from the Istanbul Technical University (ITU), Computer Engineering. In the past, I worked at the Istanbul Technical University Science Center as a science instructor. I write about the planet Earth and science on this website, ourplnt.com. I am also an animal lover! I take care of stray cats & dogs. This website's all income goes directly to our furry friends. Please consider supporting me on Patreon, so I can help more animals!
Garrett Reisman, former NASA astronaut rates 10 space movies in the video published by the Movie Insider. How realistic they are? Space movies vs science.
NASA Jet Propulsion Laboratory (NASA JPL) has published a great documentary about Casini Spacecraft’s grand voyage (and its finale) around Saturn. Titled “Triumph at Saturn”, the two-part documentary chronicles the story of NASA’s Cassini mission.
On December 7, 1972, the crewmembers of Apollo 17 spacecraft en route to the Moon took a photo of Earth from space, at a distance of about 45,000 kilometers (28,000 miles). This image, with the official NASA designation AS17-148-22727, became known as “The Blue Marble”. It remains one of the most iconic photos of Earth taken from space.
Located in Republika Srpska, Bosnia and Herzegovina, Perućica is one of the last two saved primeval forests in Europe (the other being the Białowieża Forest). Perućica has many trees that are 300 years old, and its age is stated to be 20,000 years (it existed even before the last Ice Age which concluded about 11,550 years ago). There are trees over 50 meters high (164 feet) in the forest.
Before the invention of the telescope, no one on Earth knew that Saturn had rings until the 1600s. Galileo Galilei discovered them with his telescope in 1610, but he did not know what these were either. Thus they remained a mystery until 1655 when the Dutch astronomer Christiaan Huygens (see notes 1) figured out that they were actually planetary rings.
The great white shark (scientific name: Carcharodon carcharias) is one of the most feared beasts in the world’s oceans. They are also known as simply the “great white”, white pointer, white shark, or white death. They can be found in the coastal surface waters of all the Earth’s oceans. Here are 10 amazing great white shark facts.
On November 21, 2021, the spacecraft traveled with a velocity of 364,660 miles per hour (586,863 km/h), or 101 miles per second (mi/s) (163 kilometers per second), and once again became the fastest human-made object ever built. That speed is fast enough to fly from New York to Tokyo in just over a minute.
Despite it seeming blazingly fast (and actually, it is), it is only about 0.05437% of the speed of light.
Categories
How Mars Died? The Death Of Mars
Mars is now a cold and extremely arid desert that is constantly bombarded with deadly solar radiation. It has a very thin atmosphere (it’s really thin, it is practically almost a vacuum) and no liquid water. But that was not always the case. Billions of years ago, Mars had liquid water on its surface. It had oceans, lakes, and rivers. So, how Mars died? How did it lose its atmosphere and water and become the extremely cold, arid desert we know now? Here’s a short video by BBC Earth Lab explaining the death of Mars.
The future may seem dystopian since there are many problems in the world: global warming, environmental problems, biodiversity loss, pandemics, etc… But we can still be hopeful for the future thanks to these three key statistics.