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Космос · Photo

100 Hours of Astronomy Webcast.jpg

Lisa Marie Frattare and Mario Livio participate in the 100 Hours of Astronomy Webcast for Hubble. www.ustream.tv/recorded/1337208 www.100hoursofastronomy.org/

Wikimedia Commons · CC BY 2.0 · ♥ 0

Космос · Photo

Allegory of Astronomy - Laurent de La Hyre.jpg

Allegory of Astronomy

Wikimedia Commons · Public domain · ♥ 0

Космос · Photo

Circle of Jacques Bellange - Allegory of Astronomy, Urania.jpg

Wikimedia Commons · Public domain · ♥ 0

Космос · Photo

Imiloa Astronomy Center, Hilo (504318) (23162884739).jpg

Imiloa Astronomy Center, Hilo, Big Island, Hawaii, United States

Wikimedia Commons · CC BY 2.0 · ♥ 0

Космос · Photo

VISTA's infrared view of the Orion Nebula.jpg

This wide-field view of the Orion Nebula (Messier 42), lying about 1350 light-years from Earth, was taken with the VISTA infrared survey telescope at ESO’s Paranal Observatory in Chile. The new telescope’s huge field of view allows the whole nebula and its surroundings to be imaged in a single picture and its infrared vision also means that it can peer deep into the normally hidden dusty regions and reveal the curious antics of the very active young stars buried there. This image was created from images taken through Z, J and Ks filters in the near-infrared part of the spectrum. The exposure times were ten minutes per filter. The image covers a region of sky about one degree by 1.5 degrees.

Wikimedia Commons · CC BY 4.0 · ♥ 0

Космос · Photo

W5 cropped.jpg

From the source site, courtesy of NASA/JPL-Caltech: Generations of stars can be seen in this new infrared portrait from NASA's Spitzer Space Telescope. In this wispy star-forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities (other blue dots are background and foreground stars not associated with the region). Younger stars line the rims of the cavities, and some can be seen as pink dots at the tips of the elephant-trunk-like pillars. The white knotty areas are where the youngest stars are forming. Red shows heated dust that pervades the region's cavities, while green highlights dense clouds. W5 spans an area of sky equivalent to four full moons and is about 6,500 light-years away in the constellation Cassiopeia. The Spitzer picture was taken over a period of 24 hours. Like other massive star-forming regions, such as Orion and Carina, W5 contains large cavities that were carved out by radiation and winds from the region's most massive stars. According to the theory of triggered star-formation, the carving out of these cavities pushes gas together, causing it to ignite into successive generations of new stars. This image contains some of the best evidence yet for the triggered star-formation theory. Scientists analyzing the photo have been able to show that the ages of the stars become progressively and systematically younger with distance from the center of the cavities. This is a three-color composite showing infrared observations from two Spitzer instruments. Blue represents 3.6-micron light and green shows light of 8 microns, both captured by Spitzer's infrared array camera. Red is 24-micron light detected by Spitzer's multiband imaging photometer.

Wikimedia Commons · Public domain · ♥ 0

Космос · Video

Dart impact replay.webm

The final five-and-a-half minutes of images leading up to the DART spacecraft's intentional collision with asteroid Dimorphos. The DART spacecraft streamed these images from its DRACO camera back to Earth in real time as it approached the asteroid. This replay movie is 10 times faster than reality, except for the last six images, which are shown at the same rate that the spacecraft returned them. Both Didymos and its moonlet Dimorphos are visible at the start of the movie. At the end, Dimorphos fills the field of view. The final image in the movie shows a patch of Dimorphos that is 51 feet 16 meters) across. DART's impact occurred during transmission of the final image to Earth, resulting in a partial picture at the end of this movie. Didymos is roughly 2,500 feet (780 meters) in diameter; Dimorphos is about 525 feet (160 meters) in length.

Wikimedia Commons · Public domain · ♥ 0

Космос · Video

Telescope ASTROFOX - Ursa, Artjärvi Observatory, Finland.webm

NOTE ! Click my name on the left by my picture and see all my YouTube videos! / Kauko Helavuo • Tähtitiellinen yhdistys Ursa hankki havainto- ja koulutus...

Wikimedia Commons · CC BY 3.0 · ♥ 0

Космос · Video

NASA-WeeklyArcticSeaIceAge-1984-2019.webm

NASA video "Weekly Arctic Sea Ice Age with Graph of Ice Age By Area: 1984 - 2019" Public domain video (2:05) NASA Scientific Visualization Studio https://www.youtube.com/watch?v=QjFfcPC_4JE https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4750&button=recent This visualization shows the age of the Arctic sea ice between 1984 and 2019. Younger sea ice, or first-year ice, is shown in a dark shade of blue while the ice that is four years old or older is shown as white. The animation shows the seasonal variability of the ice, growing in the Arctic winter and melting in the summer. In addition, this also shows the changes from year to year. One significant change in the Arctic region in recent years has been the rapid decline in perennial sea ice. Perennial sea ice, also known as multi-year ice, is the portion of the sea ice that survives the summer melt season. Perennial ice may have a life-span of nine years or more and represents the thickest component of the sea ice; perennial ice can grow up to four meters thick. By contrast, first year ice that grows during a single winter is generally at most two meters thick. Note that data for the sea ice age is not available along the coastlines. The region where data is not available is shown in a dark lavender color. Another version of this visualization includes a graph that quantifies the area covered by sea ice 4 or more years old in millions of square kilometers. See https://svs.gsfc.nasa.gov/4750 . Visualizers: Cindy Starr (lead), Horace Mitchell For more information or to download this public domain video, go to https://svs.gsfc.nasa.gov/4750#27895

Wikimedia Commons · Public domain · ♥ 0

Космос · Video

1880- Global surface temperature - heat map animation - NASA SVS.webm

Global surface temperature heat map animation for 1880—___. Produced by NASA 's Scientific Visualization Studio (SVS) from data from NASA's Goddard Institute for Space Studies . Direct links to source are provided in "Source" box below. Version 7 (data through 2024) Global Temperature Anomalies from 1880 to 2024 Scientific consulting by: Gavin A. Schmidt Visualizations by: Mark SubbaRao Version 6 (data through 2023) Original source page, titled "Global Temperature Anomalies from 1880 to 2023" Visualizations by Mark SubbaRao, includes the descriptions: This color-coded map in Robinson projection displays a progression of changing global surface temperature anomalies. Normal temperatures are shown in white. Higher than normal temperatures are shown in red and lower than normal temperatures are shown in blue. Normal temperatures are calculated over the 30 year baseline period 1951-1980. The maps are averages over a running 24 month window. The final frame represents global temperature anomalies in 2023. Scale in degrees Celsius and Fahrenheit. Version 5 (data through 2022) Original source page, titled "Global Temperature Anomalies from 1880 to 2022" Visualizations by Lori Perkins, includes the descriptions: This color-coded map in Robinson projection displays a progression of changing global surface temperature anomalies. Normal temperatures are shown in white. Higher than normal temperatures are shown in red and lower than normal temperatures are shown in blue. Normal temperatures are calculated over the 30 year baseline period 1951-1980. The final frame represents the 5 year global temperature anomalies from 2018-2022. Scale in degrees Celsius and Fahrenheit. Version 4 (data through 2021) Original source page, titled "Global Temperature Anomalies from 1880 to 2021" Visualizations by Lori Perkins, includes the descriptions: This color-coded map in Robinson projection displays a progression of changing global surface temperature anomalies. Normal temperatures are shown in

Wikimedia Commons · Public domain · ♥ 0

Космос · Video

Orbiting Jupiter.webm

Video Credit & License: NASA, Juno, SwRI, MSSS Image Processing: Gerald Eichstadt Video Processing: Sean Doran Details: https://apod.nasa.gov/apod/ap170607.html

Wikimedia Commons · CC BY 3.0 · ♥ 0

Космос · Video

Flying along Venus Express orbit in the HYB simulation.webm

Fly-through Venus's plasma regions along the Venus Express (VEX) spacecraft orbit on November 20, 2006, as simulated by the HYB model (Jarvinen et al., Ann.Geo., 2009). In the animation, the colours on two perpendicular planes give the density of the solar wind (red: high density; dark blue: low density). At the beginning VEX is above Venus's geographical South pole and then starts to move along a highly elliptic one-day orbit toward the closest point (~200 km) of the orbit near the North pole. (Animation by R. Jarvinen/FMI).

Wikimedia Commons · CC BY 3.0 · ♥ 0

Космос · Video

Millisecond pulsar and accretion disk NASA animation hi res.webm

This is a public domain file from Wikimedia Commons, http://commons.wikimedia.org/wiki/File:Millisecond_pulsar_and_accretion_disk_-_NASA_animation_%28hi-res%29.ogv This is the description from Wikimedia Commons........... Animation showing neutron star and accretion disk evolving into a millisecond pulsar, with magnetic fields. The formation of a pulsar: A star in a binary star system has collapsed to a neutron star. It begins to gain material from its companion star (known as "accretion"). The infalling matter causes it to speed up and begin emitting high energy radiation, eventually forming a pulsar rotating at up to 1000 times a second. Date 1 June 2004 Source Millisecond pulsar and accretion disk - NASA animation (hi-res).ogv http://svs.gsfc.nasa.gov/vis/a010000/a010100/a010144/index.html Author NASA (animator: Dana Berry) YouTube only offers you a choice between the Standard YouTube license and the Creative Commons license, so I selected Creative Commons. However, let me state here that I make no claim for this video and it's in the public domain.

Wikimedia Commons · CC BY 3.0 · ♥ 0

Космос · Video

Globe Earth Star Trails from equator 0,0 looking north 18±hrs GE v1.13.webm

June 21, 2016 18± hours Starfield on 2 billion mile radius sphere

Wikimedia Commons · CC BY 3.0 · ♥ 0

Космос · Video

GW170817- Last Dance of Neutron Star Pair.webm

This simulation shows the final stages of the merging of two neutron stars. The merger shown in the simulation is happening much faster in reality, within less than a hundredth of a second, and produces strong gravitational waves. The simulation illustrates one of the possible scenarios for the merger event GW170817, detected by the LIGO-Virgo gravitational-wave network. The outcome could have been a neutron star or a black hole, the latter of which is shown here. Visualisation: Wolfgang Kastaun Simulation: T. Kawamura, B. Giacomazzo, W. Kastaun, R. Ciolfi, and A. Endrizzi Acknowledgements Those results were obtained with the help of the following grants: PRACE grant GRSimStar (PI Giacomazzo) MIUR FIR grant No. RBFR13QJYF (PI Giacomazzo) Reference: http://adsabs.harvard.edu/abs/2016PhRvD..94f4012K

Wikimedia Commons · CC BY 3.0 · ♥ 0

Космос · Video

Binary Neutron Star Merger (with magnetic fields).webm

This movie shows the final stages of the coalescence and the merging of two neutron stars. Neutron stars are dense objects created in certain supernova explosions, and concentrate around 1.5 solar masses inside a radius less than 20 km. Further, they can have extreme magnetic fields. The merging of two neutron stars is believed to be the source of the frequently observed so-called short gamma ray bursts, and is also the most likely source for the creation of heavy elements in the universe, such as gold. In the movie, the white solid surfaces depict the surfaces of the two neutron stars and the merged object. The latter collapses to a black hole after a while, shown in yellow for better visibility. Afterwards, various amplification effects create strong magnetic fields near the black hole, shown as transparent colors. This movie illustrates a possible scenario for an event ("GW170817") that was recently detected by the LIGO/Virgo gravitational wave detector network as well as the Fermi and INTEGRAL gamma-ray observatories, and many other telescopes. The magnetic field likely plays a key role in the gamma-ray emission, but the exact mechanism is still a field of active research, in particular with the help of computer simulations such as the one this movie is based on. Visualisation: Wolfgang Kastaun Simulation: T. Kawamura, B. Giacomazzo, W. Kastaun, R. Ciolfi, and A. Endrizzi Acknowledgements Those results were obtained with the help of the following grants: PRACE grant GRSimStar (PI Giacomazzo) MIUR FIR grant No. RBFR13QJYF (PI Giacomazzo) Reference: http://adsabs.harvard.edu/abs/2016PhRvD..94f4012K

Wikimedia Commons · CC BY 3.0 · ♥ 0

Космос · Video

Binary Neutron Star Merger (without magnetic fields).webm

This movie shows the final stages of the coalescence and the merging of two neutron stars. Neutron stars are dense objects created in certain supernova explosions, and concentrate around 1.5 solar masses inside a radius less than 20 km. The merger shown in the movie is happening much faster in reality, within less than a hundredth of a second, and produces strong gravitational waves. Matter ejected from merging neutron stars is also the most likely source for the creation of heavy elements in the universe, such as gold. The movie illustrates one of the possible scenarios for the merger event ("GW170817") that was recently detected by the LIGO/Virgo gravitational wave detector network. The outcome of this merger could have been a black hole or a stable neutron star. In this movie, a short-lived neutron star is produced that collapses quickly to a black hole. The white solid surfaces depict the surfaces of the two neutron stars and the merged object. The black hole horizon is shown as yellow surface for better visibility. The movie also shows that the remnant is surrounded by a debris disk of hot plasma much denser than any matter on Earth. This disk is visualized as transparent layers. The movie shows a case with slightly different masses than the detected event. The main uncertainty when predicting the outcome is however the behavior of matter at the extreme densities reached in neutron stars. In fact, performing computer simulations based on different assumption will help us to better understand superdense matter. Visualisation: Wolfgang Kastaun Simulation: T. Kawamura, B. Giacomazzo, W. Kastaun, R. Ciolfi, and A. Endrizzi Acknowledgements Those results were obtained with the help of the following grants: PRACE grant GRSimStar (PI Giacomazzo) MIUR FIR grant No. RBFR13QJYF (PI Giacomazzo) Reference: http://adsabs.harvard.edu/abs/2016PhRvD..94f4012K

Wikimedia Commons · CC BY 3.0 · ♥ 0

Космос · Video

Catch planet pairs and watch the moon pass stellar superstars! See Jupiter and Venus at dawn, the Moon shine near star clusters, and meteor activity all month long.webm

Catch planet pairs and watch the moon pass stellar superstars! See Jupiter and Venus at dawn, the Moon shine near star clusters, and meteor activity all month long. For more astronomy events near you, check out https://nightsky.jpl.nasa.gov/ .

Wikimedia Commons · Public domain · ♥ 0

Космос · Video

A fly-though of the GAMA galaxy survey.webm

The Galaxy and Mass Assembly catalogue is a detailed map of the Universe showing where galaxies are in 3D. This simulated flythrough shows the real positions and images of the galaxies that have been mapped so far. Distances are to scale, but the galaxy images have been enlarged for your viewing pleasure.

Wikimedia Commons · CC BY 4.0 · ♥ 0

Космос · Photo

Skywatcher telescope 16 inch and the Milky Way galaxy in Brod, Dragash - Kosovo.jpg

This image combines astronomy equipment with the visible Milky Way, illustrating observational astronomy under dark-sky conditions.

Wikimedia Commons · CC BY 4.0 · ♥ 0

Космос · Photo

Sidewalk astronomy in Madison - student views the Orion Nebula.png

A student looks at the Orion Nebula through an Apertura CarbonStar 8" Ritchey–Chrétien telescope, mounted on a Sky-Watcher Wave 150i strain wave mount and carbon fiber tripod with pier extension, set up at Library Mall at UW-Madison for sidewalk astronomy. Visible inside the telescope are the secondary mirror and vanes, as well as baffles that reduce the effect of glare from nearby stars. The student is shielding her eyes to avoid glare from nearby lights and the photographic flash. In the background are other astronomers, a collapsible table with some ancillary equipment, and carry bags for a different telescope.

Wikimedia Commons · CC BY 4.0 · ♥ 0