The Nenet reindeer herders need to move their tent every few days throughout most of the year. Every time they migrate they must pack the whole tent away, drag it across the tundra on sledges, and erect... continue reading

posted by blacklotus90 1 week ago • 476 views • 32:14

From Youtube, "The night sky seems peaceful and orderly. But in reality, stars are careening through the galaxy at speeds of hundreds of thousands of kilometers per hour. Not bound by static formations... continue reading

posted by w1ndex 3 months ago • 319 views • 9:46

Stephen Hawking thought an asteroid impact posed the greatest threat to life on Earth. -yt

posted by eric3579 3 months ago • 402 views • 20:06

From Youtube, "The observable universe is a big place that has been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our... continue reading

posted by w1ndex 7 months ago • 205 views • 11:41

"... Having bones is pretty cool. They make our blood, let us hear, and keep us from being just a squishy puddle on the floor. But for every species with bones, there’s at least 20 species on Earth with... continue reading

posted by ant 7 months ago • 37 views • 8:50

Red sprites, secondary jets and newly discovered green afterglow called "ghosts" triggered by red sprites. A dozen vibrant red sprites were recorded on this evening and only two events had the green afterglow.... continue reading

posted by newtboy 7 months 1 week ago • 940 views • 2:32

From Youtube, "This video is part of a series about climate change supported by Breakthrough Energy – a coalition founded by Bill Gates, that is working to expand clean-energy investment and support... continue reading

posted by w1ndex 7 months 3 weeks ago • 78 views • 10:36

From Youtube, "The sun. Smooth and round and peaceful. Except when it suddenly vomits radiation and plasma in random directions. These solar flares and coronal mass ejections, or CMEs can hit earth and... continue reading

posted by w1ndex 8 months 4 weeks ago • 134 views • 9:43

Global Warming is taking a rare back seat in the news right now, as we deal with the more immediate existential crisis afflicting our civilisation and way of life. But as entire countries are getting shut... continue reading

posted by newtboy 11 months 1 week ago • 343 views • 13:56

NASA’s MAVEN (Mars Atmosphere and Volatile Evolution) spacecraft has discovered “layers” and “rifts” in the electrically charged part of the upper atmosphere (the ionosphere) of Mars. The phenomenon... continue reading

posted by eric3579 1 year 3 weeks ago • 332 views • 2:19

YouTube description: The history of the Earth from its formation to present day, covering major events throughout its 4-billion-year history. Estimates of average temperature, atmospheric composition,... continue reading

posted by Aard Vark (oritteropo) 1 year 1 month 2 weeks ago • 801 views • 11:36

Stone caps protect huge earth pillars from rain while surrounding soil erodes, leaving earth pyramids, many topped with stone hats.

posted by newtboy 1 year 1 month 2 weeks ago • 138 views • 4:41

In the fast-flowing streams of eastern Tennessee, Emilly Nolan is working hard to reestablish a population for a strange looking animal with an even stranger array of nicknames. The Eastern hellbender—aka... continue reading

posted by newtboy 1 year 1 month 2 weeks ago • 98 views • 6:51

Is Japan the perfect nation? -Rare Earth

posted by eric3579 1 year 2 months 2 weeks ago • 427 views • 12:43

From Youtube, "American healthcare is like no other on Earth - needlessly complicated, expensive, and ready for reform."

posted by w1ndex 1 year 4 months 1 week ago • 11 views • 33:34

From Youtube, "In nearly every corner of the Earth, ants wage war against each other. Their weapons are what nature gave them. Some have strong armour, deadly stingers or sharp mandibles. And then there... continue reading

posted by w1ndex 1 year 5 months ago • 460 views • 9:23

YouTube description: To prepare him for landing the lunar module, Neil Armstrong practiced on a training vehicle, right here on Earth. It was designed to replicate flying within a gravitational pull... continue reading

posted by Aard Vark (oritteropo) 1 year 7 months 1 week ago • 461 views • 2:14