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A long exposure of an extremely violent volcano eruption can return stunning visual results. This stunning, large electrical storm during the first hours of the Calbuco eruption in April 2015, was captured by Francisco Negroni [this one and more photos: francisconegroni.com]

"You have to really kind of think about our own existence here in the universe. You realize that people often say, 'I hope to go to heaven when I die,'" - "In reality, if you think about it, you go to heaven when you're born" -- Jim Lovell buff.ly/2K5tvg7 #EarthDay2021

In Randeniya, a small village in the lower wetlands of Sri Lanka, elephant poop is a renewable resource and it's used to make paper. And since an elephant can defecate 16 times in one day— its 200 pounds of dung can double as paper pulp buff.ly/32yRgVQ

Originally discovered in 1925 in Tutankhamun's 14th century BCE tomb, this iron dagger is of meteorite origin. A study published in 2016 showed that the blade's composition is within the median of a group of 76 previously discovered iron meteorites ow.ly/Naii30nOLcF

Born #Today in 1909, when she lost her position in her anatomy department due to fascism's racial laws, Rita Levi-Montalcini set up a laboratory in her bedroom where she discovered the nerve growth factor for which she was awarded the Nobel Prize in 1986 buff.ly/3atcyLy

Ingenuity helicopter successfully completed its second Mars flight on April 22 – the 18th sol, or Martian day, of its experimental flight test window. Lasting 51.9 seconds, the flight was at higher maximum altitude, had longer duration & sideways movement buff.ly/3xhlEos

A lateral breakout from the side of a tube results in three separate sources feeding a single stream of lava, its skin rapidly cooling, creating a wrinkly textured surface. And a dragon's claw emerges, by Bruce Omori buff.ly/2INJBOj

There's a volcano in Tanzania, whose carbonatite rich lava eruptions create these marvelous sculptures [read more: bit.ly/2jp1HZJ]

This diver in Belize has made friends with an octopus. She named him Egbert and brings him treats in his own jar [source and full video: buff.ly/2IZTd95]

A component like the 008004 size temperature compensation type chip monolithic ceramic capacitor is very small: 0.25×0.125mm, which means you would see it (if possible) on your finger like in this image [read more: buff.ly/3eAscWL]

A time-lapse animation of volcanic eruptions and earthquakes since 1960 [source, interactive site: buff.ly/2dRrCrK]

Lyuba was a baby wolly mammoth which lived just 1 month more than 40,000 years ago and it's one the most complete and best-preserved baby mammoth specimens ever found. This is its full-body CT scan done at a Ford testing facility in Michigan [read more: buff.ly/2sjAgDP]

Vantablack, one of the blackest substances known, absorbs up to 99.965% of light and, even though it was surpassed by other more efficient material, has still impressive results [read more: bit.ly/1OMJnmN]

The Forever Tree. Many of these trees, growing high in the White Mountains of Inyo County in eastern California, live for 5000 years, and even after dying, can remain for 5000 more years. This photo by Ken Lee captures their essence in one shot kenleephotography.com/

Designed by Peer Clahsen, it appeared in the 1987 catalogue from NAEF toys in Switzerland. He describes it as ‘wave-like rolling pair of rings’. This is an extended version by brusspup [full video, with tutorial: buff.ly/3xicLLi]