Фото и видео о науке

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