The panorama was collected by Charles Moss Duke. John Watts Young is near the rover (to the right of the lander) collecting a rock sample. To the right of the lander is the flag, and to the right of that, the Solar Wind Collector (SWC). #space #astrophysics #universe ... https://www.youtube.com/watch?v=lQn_LMOgSYk
Astronomers have discovered the first evidence for giant black holes in dwarf galaxies on a collision course. This result from NASA’s Chandra X-ray Observatory has important ramifications for understanding how the first wave of black holes and galaxies grew in the early universe.
Collisions between the pairs of dwarf galaxies have pulled gas towards the giant black holes they each contain, causing the black holes to grow. Eventually the likely collision of the black holes will cause them to merge into much larger black holes. The pairs of galaxies will also merge into one.
Scientists think the universe was awash with small galaxies, known as “dwarf galaxies,” several hundred million years after the Big Bang. Most merged with others in the crowded, smaller volume of the early universe, setting in motion the building of larger and larger galaxies now seen around the local universe.
Dwarf galaxies by definition contain stars with a total mass less than about 3 billion times that of the Sun, compared to a total mass of about 60 billion Suns estimated for the Milky Way.
The earliest dwarf galaxies are impossible to observe with current technology because they are extraordinarily faint at their large distances. Astronomers have been able to observe two in the process of merging at much closer distances to Earth, but without signs of black holes in both galaxies.
Astronomers have found many examples of black holes on collision courses in large galaxies that are relatively close by, but searches for them in dwarf galaxies are much more challenging and until now had failed.
The new study overcame these challenges by implementing a systematic survey of deep Chandra X-ray observations and comparing them with infrared data from NASA’s Wide Infrared Survey Explorer, or WISE, telescope and optical data from the Canada-France-Hawaii Telescope.
Using this technique, a group of researchers identified two pairs of merging dwarf galaxies in separate galaxy clusters. The first is Abell 133, which is located about 760 million light-years away. The second is the galaxy cluster Abell 1758S, which is about 3.2 billion light-years from Earth.
Astronomers will use these systems as analogs for ones in the early universe, so they can drill down into questions about the first galaxies, their black holes, and star formation the collisions caused many billions of years ago.
Credit
X-ray: NASA/CXC/Univ. of Alabama/M. Micic et al.;
Optical: International Gemini Observatory/NOIRLab/NSF/AURA
...
https://www.youtube.com/watch?v=TMqs8kDLWPQ
After almost 20 years in space, NASA's Cassini spacecraft begins the final chapter of its remarkable story of exploration: its Grand Finale.
Between April and September 2017, Cassini will undertake a daring set of orbits that is, in many ways, like a whole new mission. Following a final close flyby of Saturn's moon Titan, Cassini will leap over the planet's icy rings and begin a series of 22 weekly dives between the planet and the rings.
Subscribe for more Space wonders on ΥουΤυbe: https://tinyurl.com/SpaceTelescopesYouTube #space #astrophysics #universe
...
https://www.youtube.com/watch?v=NOdShinh-UA
The Crab Nebula, the result of a bright supernova explosion seen by Chinese and other astronomers in the year 1054, is 6 500 light-years from Earth. At its center is a super-dense neutron star, rotating once every 33 milliseconds, shooting out rotating lighthouse-like beams of radio waves and light -- a pulsar (the bright dot at image center). The nebula's intricate shape is caused by a complex interplay of the pulsar, a fast-moving wind of particles coming from the pulsar, and material originally ejected by the supernova explosion and by the star itself before the explosion.
This video starts with a composite image of the Crab Nebula, a supernova remnant that was assembled by combining data from five telescopes spanning nearly the entire breadth of the electromagnetic spectrum: the Very Large Array, the Spitzer Space Telescope, the Hubble Space Telescope, the XMM-Newton Observatory, and the Chandra X-ray Observatory. The video dissolves to the red-colored radio-light view that shows how a neutron star’s fierce “wind” of charged particles from the central neutron star energized the nebula, causing it to emit the radio waves. The yellow-colored infrared image includes the glow of dust particles absorbing ultraviolet and visible light. The green-colored Hubble visible-light image offers a very sharp view of hot filamentary structures that permeate this nebula. The blue-colored ultraviolet image and the purple-colored X-ray image shows the effect of an energetic cloud of electrons driven by a rapidly rotating neutron star at the center of the nebula.
Credits: NASA, ESA, J. DePasquale (STScI)
Subscribe for more Space wonders on ΥουΤυbe: https://tinyurl.com/SpaceTelescopesYouTube #space #astrophysics #universe
...
https://www.youtube.com/watch?v=HYCxDqmyKZY
Space Telescopes Channel Trailer
Subscribe for more Space wonders on ΥουΤυbe: https://tinyurl.com/SpaceTelescopesYouTube
#space #shorts #trailer
...
https://www.youtube.com/watch?v=kd3I1Mq_8-c
First mosaic image taken by the navigation camera on the Mars Exploration Rover Spirit showing a 360 degree panoramic view of the rover landing site on Mars.
Subscribe for more Space wonders on ΥουΤυbe: https://tinyurl.com/SpaceTelescopesYouTube
#Shorts #space #Mars
...
https://www.youtube.com/watch?v=xb5zrqYUGXg
NASA's Hubble Space Telescope observations of Jupiter's icy moon Europa have revealed the presence of persistent water vapor — but, mysteriously, only in one hemisphere.
Europa harbors a vast ocean underneath its icy surface, which might offer conditions hospitable for life. This result advances astronomers' understanding of the atmospheric structure of icy moons, and helps lay the groundwork for planned science missions to the Jovian system to, in part, explore whether an environment half-a-billion miles from the Sun could support life.
#Europa #Space #Shorts
Additional Credits:
Artist’s Impressions of a Water Atmosphere on Europa: ESA/Hubble, J. da Silva
Galileo Spacecraft’s Image of Europa: NASA/JPL-Caltech/SETI Institute
Music Credits:
"Maps of Deception" by Idriss-El-Mehdi Bennani [SACEM], Olivier Louis Perrot [SACEM], and Philippe Andre Vandenhende [SACEM] via Sound Pocket Music [PRS] and Universal Production Music.
...
https://www.youtube.com/watch?v=RZ9_qK8-PBI
All of the best "animal" images taken from Hubble Spac Telescope over the years. From giant tadpole galaxies to the famed Eagle Nebula, there are all kinds of "animals" in space!
#Space #Hubble #Shorts
Image Credits:
Picture of Eagle by Eliot Malumuth
Picture of Horse by Maria Zubareva via Motion Array
Video Credits:
White Mouse in Hands by Misharin via Motion Array
Sand Crab Scavenging via monster/Pond5
Underwater Frog Tadpole via MPS_Images/Pond5
Whale in Ocean via VideoFort/Pond5
...
https://www.youtube.com/watch?v=ZAZ4lAi4tjY
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. A virtual journey through the galaxies.
Help us translate this video:
http://www.youtube.com/timedtext_video?ref=share&v=zedUcYRupas
This work was supported by the Ogden Trust, STFC and the Royal Society.
Credit:
ICRAR/GAMA/Will Parr, Mark Swinbank and Dr. Peder Norberg (Durham University) using data from the SDSS and the GAMA surveys.
Narration: Luke Davies (ICRAR)
Subscribe for more Space wonders on ΥουΤυbe: https://tinyurl.com/SpaceTelescopesYouTube #space #astrophysics #universe
...
https://www.youtube.com/watch?v=zedUcYRupas
To investigate the physics underpinning white dwarf evolution, astronomers compared cooling white dwarfs in two massive collections of stars: the globular clusters M3 and M13. These two clusters share many physical properties such as age and metallicity but the populations of stars which will eventually give rise to white dwarfs are different. This makes M3 and M13 together a perfect natural laboratory in which to test how different populations of white dwarfs cool.
0:00 - Zoom Out M3
0:31 - Zoom Into M13
#M3 #M13 #Shorts
Credit:
ESA/Hubble, NASA, KPNO/NOIRLab , Digitized Sky Survey 2, E. Slawik, N. Risinger (skysurvey.org), T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOIRLab), G. Piotto et al.
Music: Tonelabs - Happy Hubble
...
https://www.youtube.com/watch?v=44xaL5pZYoM