What if Mars still had liquid water on its surface and a thick atmosphere filled with clouds, like Earth? How would it look like? Software engineer Kevin Gill of JPL (NASA’s Jet Propulsion Laboratory) wondered this and prepared an image using data from NASA’s Mars Reconnaissance Orbiter (MRO)(1) and Mars Orbiter Laser Altimeter (MOLA)(2). The result is stunning!
Gill picked an arbitrary sea level and used GIMP (a free and open-source raster graphics editor used for image retouching and editing) to paint the features onto the satellite images using these measurements.
Continue reading How Mars would look if it still had water
The Saffir–Simpson hurricane wind scale (SSHWS) is a 1 to 5 rating based on a hurricane’s sustained wind speed. The Weather Channel meteorologist Mark Elliot prepared a video titled “Why Hurricane Categories Make a Difference” and explained what each category means.
Continue reading Saffir-Simpson Hurricane Wind Scale Explained (Video)
Elon Mask, the founder, CEO, and Lead Designer of the private space travel company SpaceX announced that “they are planning to get humans to Mars in six years”. In order to achieve this goal, Musk revealed the Interplanetary Transport System, which aims to reach Mars with a human crew for the first time in history.
Continue reading SpaceX unveils the Interplanetary Transport System (a spaceship and rocket to colonize Mars) – video
Like crocodiles, snakes also suffer from a prevalence of “big fish” stories and over-exaggeration in the internet era. In fact, it is very difficult to measure how large actually a snake is, especially if it’s really big. So, how big are the largest snakes actually?
Continue reading Largest snakes of the world
If you search for the fastest land animals on the Internet, you will find many “fastest animals” lists, most of them are popular “top list” sites. But, in fact, there is a tendency to overestimate the speed of fast animals. Even the speed of the world’s fastest land animal, cheetah’s speed is usually highly overestimated.
Measuring an animal’s speed is a very hard task, and very few of them were properly authenticated. Some of them are really fast, that’s true, but what is the exact number? This information is usually not measured correctly.
Continue reading The fastest land animals
A year after returning its first image, NASA’s EPIC camera, a four megapixel CCD camera and telescope attached the Deep Space Climate Observatory (DSCOVR) shows us an entire year of Earth from almost one million miles away. The result is the amazing video below.
Continue reading A Year of Earth From a Million Miles Away
With the voice of Jay Herman, EPIC lead scientist.
The Earth, our home has a lot of beautiful, amazing locations – and some strange places as well. These weird places sometimes look “impossible”, sometimes dangerous, sometimes scary, but despite all that, still can be beautiful. Here are ten of them.
Continue reading 10 Strange Places on Earth
The “Seven Wonders of the World“, describes seven great constructions known in the Hellenistic period – that’s why they are also known as the “Seven Wonders of the Ancient World”. In fact, in the Hellenistic era, each famous traveler had his own version of the list, but the best known and earliest surviving was from a poem by Greek-speaking epigrammist Antipater of Sidon, which he described in a poem composed about 140 BC:
“I have set eyes on the wall of lofty Babylon on which is a road for chariots, and the statue of Zeus by the Alpheus, and the hanging gardens, and the Colossus of the Sun, and the huge labor of the high pyramids, and the vast tomb of Mausolus; but when I saw the house of Artemis that mounted to the clouds, those other marvels lost their brilliancy, and I said, ‘Lo, apart from Olympus, the Sun never looked on aught so grand.'”
But, in fact, all “seven wonders of the world“ existed at the same time for a period of less than 60 years. And now, only the Great Pyramid of Giza still in existence. All the others somehow gone.
If Antipater of Sidon was living in the more recent times, say 19th century, he probably would prepare a very different list. Here are the alternative seven wonders of the world that still exist today (with the images and videos):
Continue reading Alternative Seven Wonders Of The World
On November 6th, 2015, UP Aerospace Inc. launched the 20-foot (6-meters) tall SL-10 rocket (a small sounding rocket) into near-space. The mission was to deploy the Maraia Capsule testing the aerodynamics and stability of the payload on re-entry to the atmosphere. The rocket reached an altitude of 396,000 feet (120,700 meters) and speeds up to Mach 5.5 (3800 mph or 6115 km/h) at engine burnout. The event was recorded with an attached GoPro. The action camera has recorded amazing images of Earth and space.
Continue reading GoPro footage of a rocket launching into space
We evolved here on Earth, and for thousands of years, we just thought the Earth is also the universe, or at least the most important and the biggest part of it. Our brains have been adapted to the life on Earth and the basic survival needs. So we can deal with the moderately sized objects which have moderate velocity, we can understand the small numbers like 1, 2, 50, we can conceptualize the small distances like two kilometers or the distance from our “cave” to the nearest river. But when the numbers and distances get bigger, I mean much bigger, like the distance from Earth to the Sun, it becomes incredibly difficult to conceptualize.
Previously I posted an article titled “If The Moon Were Only 1 Pixel – A Tediously Accurate Map Of The Solar System“. Since the human brain cannot deal with the really large numbers, it is an amazing way to understand how big actually our Solar System is.
Continue reading A Scale Model of Solar System Drawn in the Desert and the Result is Stunning