𝕏stream of Consciousness @XStream1973 Twitter profile

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𝕏stream of Consciousness

@XStream1973

6 years

Spectacular Sun halo display, with a 22° halo, parhelic circle, sundogs and a tangent arc as well as 44° parhelia (sundogs) and 46° halo, spotted in Vemdalen, Sweden on December 1, 2017

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Does the Sun always rise in the same direction? No. This set of photos by Zaid M. Al-Abbadi shows the direction of sunrise every month during 2019 as seen from near the city of Amman, Jordan [source, read more: ]

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3 years

This image captured by Sergio Scauso from Córdoba, Argentina captured the lunar occultation of Mars on August 9, 2020, showing a familiar cratered Moon in the foreground with the bright planet Red Planet unusually adjacent

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2 years

Does the Sun always rise in the same direction? No. This composite image by Luca Vanzella shows the direction of sunrise every month during 2021 as seen from the city of Edmonton, Alberta, Canada [read more: ]

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5 years

If you put some soap or ink on a leaf, you obtain a ink propelled boat, using the Marangoni effect. The ink or the detergent has a lower surface tension than water and its flow provides thrust to push the boat forward |

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3 years

Does the Sun always rise in the same direction? No. This set of photos by Zaid M. Al-Abbadi shows the direction of sunrise every month during 2019 as seen from near the city of Amman, Jordan. Today is the December #solstice

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2 years

What happening above that volcano? Something very unusual -- a volcanic light pillar. More typically, light pillars are caused by sunlight, but this shot by Giancarlo Tiné, shows us one made by the glowing magma of Mount Etna [read more: ]

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2 years

The mission was to document night-flying birds -- but it ended up also documenting a beautiful sky. This wide-angle mosaic was taken over the steppe golden fields in Mértola, Portugal in 2020 by Miguel Claro and shows a breathtaking view of the Milky Way

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2 years

In 2014, photographer Max Rive catpured this amazing shot of an aurora above a summit of the Austnesfjorden fjord close to the town of Svolvear on the Lofoten islands in northern Norway [source, read more: ]

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6 years

How refraction paints a forest in a drop of water

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2 years

What's that green streak in front of the Andromeda galaxy? A meteor. While photographing the Andromeda galaxy in 2016, near the peak of the Perseid Meteor Shower, a small pebble from space crossed right in front of M31 [read more: ]

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2 years

On the left, the night sky is lit up by particles expelled from the Sun that later collided with Earth's upper atmosphere — creating bright auroras. On the right, the night glows with ground lights reflected by millions of tiny ice crystals [rread more: ]

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3 years

The pre-dawn sky first seemed serene yesterday morning over Indian Harbor Beach in Florida, USA. But then it lit up with a rocket launch.This time lapse by Eric Holland compressing 12-minutes into 8-seconds -- shows the bright launch plume of SpaceX Crew-2

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3 years

How many planets can you see in the sky at once? This is a shot taken by Tom Harradine on July 19, 2018 from Brisbane, Australia and it shows 5 planets plus the Moon

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2 years

This 27-frame mosaic was taken in July 2020 from Ojas de Salar in the Atacama Desert of Chile. The eye is actually a small lagoon captured reflecting the dark night sky as the Milky Way Galaxy arched overhead

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2 years

A large coronal mass ejection occurred on our Sun earlier this month, throwing a cloud of fast-moving electrons, protons, and ions toward the Earth. Part of this cloud impacted our Earth's magnetosphere and resulted in spectacular auroras [read more: ]

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5 years

David Edgar took this photo of an adolescent humpback whale in the South Pacific, several miles off the coast of Tongatapu, Tonga, capturing it as a split-shot with half the dome port submerged, and the other above the surface

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2 years

The Andromeda Galaxy at 2.5 million light years away is the most distant object easily seen with your unaided eye. This combination of 45 images catpured by Gerardo Ferrarino, shows you how you'd see it in the night sky if it wasn't so dim [read more: ]

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2 years

What are those red filaments in the sky? They are a rarely seen form of lightning confirmed only about 30 years ago: red sprites. This image was taken by Yuri Beletsky earlier this year from Las Campanas observatory in Chile [read more: ]

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5 years

Calculation of π, from rain falling on two wooden plate sensors, one circular and one square: the number of raindrops that landed on each plate during a storm was counted with an Arduino and π was calculated as the ratio [source & credits: ]

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2 years

This impressive picture by Daniel Korona captured Nova RS Ophiuchus discovered in August 2021, a Perseid meteor, the Milky Way and the appearance of red sprites [read more: ]

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5 years

The dynamic behavior of an ice cream cone put in a whirlpool [source: ]

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2 years

Sometimes both heaven and Earth erupt. Colorful auroras erupted a few years ago, with green aurora appearing near the horizon and brilliant bands of red aurora blooming high overhead, while the White Dome Geyser in Yellowstone National Park also erupted

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3 years

Pictured here, over 60 images were stacked by Joe Randall to capture the flow of lightning-producing storm clouds in July over Colorado Springs, Colorado [source, read more: ]

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6 years

Geomorphology of a river: what happens when you install a dam or weir and how the sediment transport changes

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2 years

This video taken in late 2017 by Håkan Hammar on the side of a ski hill at the Vemdalen Ski Resort in central Sweden, shows one of the most impressive bright 22° halo -- as well as a rarer and much fainter 46° halo [read more: ]

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3 years

The time of summer/winter solstice occurs today for some parts of the world, but tomorrow for other regions. The featured image was taken during the week of the 2008 summer solstice at Stonehenge in United Kingdom, captured by Max Alexander

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3 years

The lowest part of an aurora will typically occur about 100 kilometers up, while most clouds exist only below about 10 kilometers. The relative heights of clouds and auroras are shown clearly in this picture taken by Daniele Boffelli in Iceland in 2015

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4 years

This periodic table by Jennifer Johnson is color coded to indicate humanity's best guess as to the nuclear origin of all known elements

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4 years

Pictured here, over 60 images were stacked by Joe Randall to capture the flow of lightning-producing storm clouds in July over Colorado Springs, Colorado

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2 years

Sixteen frames from Voyager 1's flyby of Jupiter in 1979 were recently reprocessed and merged to create one of the most iconic views of space exploration. Europa and Io's shadow against Jupiter and its Great Red Spot [read more: ]

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2 years

This picture was taken by Juan Antonio Sendra over the Mediterranean Sea in September 2020 near Valencia, Spain. The background Sun looks like the Greek letter Omega (Ω) sue to sunlight refracting through warm air just above the water [read more: ]

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3 years

Magnificent spiral galaxy NGC 4565 is viewed edge-on from planet Earth. Also known as the Needle Galaxy for its narrow profile, NGC 4565 is a stop on many telescopic tours of the northern sky, in the faint but well-groomed constellation Coma Berenices

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2 years

The lowest part of an aurora will typically occur about 100 kilometers up, while most clouds exist only below about 10 kilometers. The relative heights of clouds and auroras are shown clearly in this picture taken by Daniele Boffelli in Iceland in 2015

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2 years

What created Devils Tower? The origin of this extraordinary rock monolith in Wyoming, USA is still debated, with a leading hypothesis holding that it is a hardened lava plume that never reached the surface to become a volcano [read more: ]

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2 years

Hao Qin was taking a long-duration sky image when he captured by accident the brightest meteor he had ever seen. Clearly a fireball, the disintegrating space-rock created a trail so bright it turned night into day for about two seconds earlier this month

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5 years

Adult ground squirrels are immune to rattlesnake venom, so they will actively antagonize the snakes in order to distract them from a nest full of babies who haven’t developed the resistance yet [gif & full video: ]

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5 years

A plane taking off with the propellers perfectly synced with the camera frame rate is always a remarkable spectacle [source of the gif: ]

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5 years

Physics says energy would be lost due to inefficiency of the wheel, and it wouldn't make a complete loop with the bird on it. This cockatoo actually learned to move in a way that adds energy to the system, allowing it to make a complete loop [full video: ]

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5 years

From an aerial view just off the island of Mauritius, there is what appears be an underwater waterfall. This is a remarkable cinemagraph of the effect due to the sand moving down an underwater cliff

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2 years

What's happening behind that island? Things both expected and unexpected. Expected, the pictured rays of light (called crepuscular rays) originate from the Sun. Unexpected,, the Sun was being partially eclipsed by the Moon at the time -- late last month

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2 years

This photo by Jordan Sirokie shows a SpaceX Falcon 9 rocket lifted off from Kennedy Space Center, Florida earlier this month carrying the Imaging X-ray Polarimetry Explorer (IXPE) [read more: ]

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2 years

Mikhail Zavyalov captured this solar halo with sun pillars and subsuns using a drone on January 12, 2022 in Yaroslavl, Russia [source, read more: ]

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3 years

If you saw a total solar eclipse, would you do a double-take? Astrophotographer Thierry Legault did just that -- but it took a lake and a bit of planning. He captured the eclipse reflected in the lake called La Cuesta Del Viento (The Slope of the Wind)

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5 years

That's no sunspot. It's the International Space Station (ISS) caught passing in front of the Sun, captured by Rainee Colacurcio

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5 years

This picture is composed of 15 vertical frames taken consecutively over ten minutes from the Uyuni Salt Flat in Bolivia by Jheison Huerta in early April 2019. After a rain, the flat can become the world's largest mirror -- spanning 130 kilometers

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6 years

Spinning a skateboard wheel so fast the centripetal force rips it apart [full video: ]

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3 years

The Earth and Moon are rarely photographed together. One of most spectacular times this occurred was about 30 years ago when the Jupiter-bound Galileo spacecraft zoomed past our home planetary system [source, read more: ]

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3 years

Have you ever seen a halo around the Moon? This fairly common sight captured here by Göran Strand, occurs when high thin clouds containing millions of tiny ice crystals cover much of the sky. Each ice crystal acts like a miniature lens

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5 years

How a swarm of robots is able to extract vehicles from confined spaces with delicate handling, swiftly and in any direction

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3 years

This impressive image, taken with the Hubble Space Telescope in near infrared light and processed by Luis Romero, allows the viewer to see through much of the thick dust that makes the Pillars of Creation opaque in visible light [read more: ]

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2 years

What used to be considered a hole in the sky is now known to astronomers as a dark molecular cloud. In Barnard 68, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars [read more: ]

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3 years

Francisco Sojuel captured this impressive view of the starry sky behind an erupting Vulcna de Fuego, Guatemala, including the Great Conjunction between Jupiter and Saturn: the two planets reach the minimum distance in 400 years tomorrow

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2 years

On June 10, 2021 a New Moon passed in front of the Sun. Rising together Moon and Sun, the undulating path of a bird in flight captured in a sequence of consecutive frames near maximum eclipse in this digital composite [read more: ]

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3 years

Have you ever seen the Southern Cross? The featured image was taken last month in Chile and captures the Southern Cross just to the left of erupting Villarrica, one of the most active volcanos in our Solar System

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3 years

This photo was taken on Sept 11, 2018 from the Skeleton Coast of Namibia. The moonlight is reddened by the low, long line-of-sight across the Atlantic. But near the center of the frame Venus still shines brightly, its light reflected in calm ocean waters

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5 years

If you have filmed with a camera underwater you have seen the color loss that occurs at depth. Different colors are absorbed at different depths so colors appear different as you get deeper. This video shows you how [source: ]

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5 years

A day in the life on a high voltage cable inspector: probably one of the most dangerous jobs on Earth

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2 years

My account @Rainmaker1973 was blocked due Twitter rule violations: it looks like the latest tweet sent, mentioning a @tweetsauce video and regarding the expansion of the universe is labeled as violating the rules. As usual no email notifications, so wondering what happened

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5 years

Kallima inachus, the orange oakleaf, is a butterfly found in Tropical Asia. With wings closed, it closely resembles a dry leaf with dark veins and is a spectacular and commonly cited example of camouflage [source of the gif: ]

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3 years

This photo was taken on Sept 11, 2018 from the Skeleton Coast of Namibia. The moonlight is reddened by the low, long line-of-sight across the Atlantic. But near the center of the frame Venus still shines brightly, its light reflected in calm ocean waters

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2 years

No, the car was not in danger of being vacuumed into space by the big sky vortex. For one reason, the vortex was really an aurora, and since auroras are created by particles striking the Earth from space, they do not create a vacuum [read more: ]

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2 years

While driving near Keluke Lake in Qinghai Provence in China a few years ago, Xiaohan Wang noticed the impressive central band of the Milky Way Galaxy and the sensitive camera image showed there airglow bands [read more: ]

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3 years

Hao Qin was taking a long-duration sky image when he captured by accident the brightest meteor he had ever seen. Clearly a fireball, the disintegrating space-rock created a trail so bright it turned night into day for about two seconds earlier this month

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2 years

From this vantage point about three quarters of a mile from planet Earth's geographic South Pole, the December 4 eclipse of the Sun was seen as a partial eclipse. Aman Chokshi climbed to the roof of Amundsen-Scott station's Dark Sector Laboratory to watch

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3 years

What's happening to this cloud? Ice crystals in a distant cirrus cloud are acting like little floating prisms. Known informally as a fire rainbow for its flame-like appearance, a circumhorizon arc appears parallel to the horizon [read more: ]

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2 years

Why would the surface of Titan light up with a blinding flash? The reason: a sunglint from liquid seas. Saturn's moon Titan has numerous smooth lakes of methane that, when the angle is right, reflect sunlight as if they were mirrors [read more: ]

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2 years

Thunderstorms almost spoiled this view of the spectacular 2011 June 15 total lunar eclipse. Instead, storm clouds parted for 10 minutes during the total eclipse phase and lightning bolts contributed to the dramatic sky captured by Chris Kotsiopoulos

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5 years

Kallima inachus butterfly with wings closed, closely resembles a dry leaf with dark veins and is a spectacular and commonly cited example of camouflage [source of the gif: ]

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3 years

This photo of the Moon through a gap in a wall of rock may appear like a giant eye looking back at you. Although, in late October, it took only a single exposure to Zachery Cooley to capture this visual double, but also a lot of planning

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4 years

After initial cloudiness, the Sun appeared to rise in two pieces and during partial eclipse, causing the photographer to describe it as the most stunning sunrise of his life. Check here why this sunrise in Qatar on December 26 was so peculiar:

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1 year

Very few will read this, hopefully tomorrow it will be on the main account, which has been blocked for 12 hours for posting non consensual nudity for the third time in less than 2 months. This is the tweet posted. The account has been deboosted too, no more followers’ growth.

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5 years

How a canoe can move without paddles? The hull drag can be exploited as an inverted reaction [source of the gif: ]

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4 years

Pictured far in the background is Comet C/2020 F3 NEOWISE as it appeared about two weeks ago over northern Greece, captured by Constantine Emmanouilidi. Above the comet are many stars including the bright stars of the Big Dipper

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2 years

Northern winter constellations and a long arc of the Milky Way are setting in this night skyscape by Dan Zafra, looking toward the Pacific Ocean from Point Reyes on planet Earth's California coast [read more: ]

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4 years

This image captured by Sergio Scauso from Córdoba, Argentina captured the lunar occultation of Mars on August 9, 2020, showing a familiar cratered Moon in the foreground with the bright planet Red Planet unusually adjacent

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3 years

What used to be considered a hole in the sky is now known to astronomers as a dark molecular cloud. In Barnard 68, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars [read more: ]

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2 years

What's happened to our Sun? Last month, it produced the largest prominence ever imaged together with a complete solar disk. The record image, featured, was captured in ultraviolet light by the Sun-orbiting Solar Orbiter spacecraft [read more: ]

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5 years

It's all about the center of mass (n-th episode) #MotivationMonday

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4 years

This 40-image conglomerate, digitally enhanced, was captured three days ago by Zixuan Lin through the dark skies of the Gobi Desert in Inner Mongolia, China. It shows the magnificence of comet C/2020 F3 (NEOWISE)'s two tails, ions and dust [more: ]

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This picture by Cory Poole was supposed to feature a series of images of the brightest comet of 2021: Comet Leonard, but within a fraction of a second, a meteor so bright it could be called a fireball streaked through just below the comet [read more: ]

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The Mercator projection distorts the size of landmasses as the latitude increases from the Equator to the poles, where the scale becomes infinite. So, lands such as Greenland, Russia appear much larger than they actually are [gif: ]

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There has been a flash on Jupiter. A few days ago, several groups monitoring our Solar System's largest planet noticed a two-second long burst of light. This one was captured by T. Humbert, S. Barré, A. Desmougin & D. Walliang [read more: ]

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Atmospheric refraction flattened the solar disk and distorted its appearance in this telescopic view of an Atlantic sunrise on June 10, 2021. From Belmar, New Jersey, the scene was recorded by Madhup Rathi at New Moon during an annular solar eclipse

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Simultaneous images from four cameras were combined to construct this view of all the planets of the Solar System, just before sunrise on June 24. above excavations at an ancient Roman villa near Marina di San Nicola, Italy [read more: ]

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3 years

This impressive picture taken by Scott Aspinall near Avonlea, Saskatchewan, Canada in April 2015, shows an astronomical triple play. Setting on the left, the Moon. Setting on the right, Venus. High above, the Pleiades star cluster [source: ]

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Francisco Sojuel captured this impressive view of the starry sky behind an erupting Vulcna de Fuego, Guatemala, including the Great Conjunction between Jupiter and Saturn: the two planets reach the minimum distance in 400 years on December 21, 2020

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4 years

Pictured here is one of the most striking images yet recorded of a waterspout, a type of tornado that occurs over water. It was taken by Joey Mole in July 2013 near Tampa Bay, Florida

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In 2014, photographer Max Rive catpured this amazing shot of an aurora above a summit of the Austnesfjorden fjord close to the town of Svolvear on the Lofoten islands in northern Norway [source, read more: ]

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5 years

How this machine, with the help of two people, easily replaces a railroad tie [full video: ]

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5 years

Professional skier Benjamin Forthun performs an exemplary ski trick on snow and water, showing the many ways you can use your potential energy and how you glide on the surface of water |

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2 years

Yesterday there was a total solar eclipse visible only at the end of the Earth. To capture the unusual phenomenon, airplanes took flight below the clouded seascape of Southern Ocean and this picture by Petr Horálek shows the totality [read more: ]

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Photographer Kathrin Swoboda took a portrait of a blackbird, but differently from many other pictures with the same subject, in this one you can actually see the bird's song, due to vortex rings created by its breath

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5 years

Ryan Pernofski makes awesome videos of waves in the ocean: this one reveals the amazing dynamics of the sea

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2 years

That's no comet. Below the Pleiades is actually a planet: Mercury. Long exposures by Sebastian Voltmer reveal something unexpected: a tail. Mercury's thin atmosphere contains small amounts of sodium that glow when excited by light from the Sun [read more: ]

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