World Water Day 2019: what’s space got to do with it?

March 22, 2019, is World Water Day. Water is a basic human right. According to the United Nations, Water scarcity affects more than 40% of people (40% !) around the world, and this is projected to increase with the rise of global temperatures. Providing clean water and sanitation for all is a huge challenge.

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Opportunity Rover’s Parting Shot Was a Beautiful Mars Panorama

Before going silent due to a huge dust storm on June 10, 2018, NASA’s Mars Exploration Rover Opportunity documented an amazing 360-degree panorama from multiple images taken at what would become its final resting spot in Perseverance Valley. The Mars rover collected these images over the course of 29 days.

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25 Amazing Astronomy Facts

As early as prehistoric times, humankind was fascinated by the night sky and all of its beauty. For centuries, philosophers and scholars would attribute magical properties to the bright stars and the Milky Way. In more recent times, we understand better what these mysterious objects are, and we can observe far more than our ancestors – planets, clusters, galaxies, and nebulae.

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Meteor which blasted over the Bering Sea was recorded by a satellite

On December 18, 2018, at around noon local time, a meteor about 10 meters (30 feet) long and weighing more than 1,500 tons, plunged into Earth’s atmosphere. It exploded over the Bering Sea and released energy equivalent to 173 kilotons of TNT – at least ten times more powerful than “Little Boy, the atomic bomb dropped on the Japanese city of Hiroshima on August 6, 1945. Japanese weather satellite Himawari 8 has recorded the fireball of the meteor before it exploded.

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Top 10 Largest Non-Planets In Our Solar System

There are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Two of the largest moons are bigger than the smallest planet, Mercury. Here are the top 10 largest non-planets in our solar system (eight of them are moons and two of them are dwarf planets).

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Is bigger always better, or will the tiny inherit the Earth?

As I scuba dive in Oslob Bay off Cebu Island in the Philippines, I see a tiny shadow dart over the surface of the spherical coral block – a minute fish, a goby of the genus Eviota, among the smallest vertebrates in existence, only about a centimetre long and less than 1/10th of a gramme light. It’s about a million times smaller than myself, with the same basic vertebrate body: a spinal cord, a bony skull, a brain, kidneys and a liver. With the exception of gills and lungs, the tiny fish and I share similar sets of organs, just at a very dissimilar size.

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How big is the blue whale? Watch to see

The blue whale (scientific name: Balaenoptera musculus) is a marine mammal belonging to the baleen whales (Mysticeti). Up to 31 meters (102 feet) in length and 190 tonnes (210 short tons) in weight, it is the largest extant animal and also is the heaviest known to have existed. But it’s hard to conceptualize how big these wonderful animals really are. To put things into perspective, Facts in Motion channel prepared a video titled “Blue Whales Are Way Bigger Than You Think”. The video also explains the evolutionary reasons behind how and why blue whales get that large.

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Watch: What happens to old spacecraft?

Since the launch of the first artificial Earth satellite, Sputnik 1, on October 4, 1957, we launched thousands of spacecraft into Earth orbit and beyond. A fraction of them are still functioning, but what happened to the vast majority of them? “The Curious Droid” published another informative video titled “What happens to old spacecraft?”

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