Hubble Space Telescope | Webb Space Telescope: The First Year of Science @hubblespacetelescope | Uploaded August 2023 | Updated October 2024, 22 hours ago.
Macarena Garcia Marin, Space Telescope Science Institute & European Space Agency
During the first year of its scientific operations, the Webb Space Telescope has opened a new window into the universe and is fulfilling its promise of making revolutionary discoveries in all areas of astronomy. Its images are not only inspiring, but also tell a story of discoveries and wonder. In this talk, Dr. Marin will work her way through space and time, while presenting the science highlights of Webb’s first year.
- News from the Universe starts at 3:50
- Main talk starts at 10:16
Host: Frank Summers, Space Telescope Science Institute
Recorded live on Tuesday, August 8, 2023
More information: www.stsci.edu/public-lectures
#STScI #galaxies #astronomy #space #telescopes #infrared #Webb #JWST #ESA #UnfoldTheUniverse #NASAWebb
Macarena Garcia Marin, Space Telescope Science Institute & European Space Agency
During the first year of its scientific operations, the Webb Space Telescope has opened a new window into the universe and is fulfilling its promise of making revolutionary discoveries in all areas of astronomy. Its images are not only inspiring, but also tell a story of discoveries and wonder. In this talk, Dr. Marin will work her way through space and time, while presenting the science highlights of Webb’s first year.
- News from the Universe starts at 3:50
- Main talk starts at 10:16
Host: Frank Summers, Space Telescope Science Institute
Recorded live on Tuesday, August 8, 2023
More information: www.stsci.edu/public-lectures
#STScI #galaxies #astronomy #space #telescopes #infrared #Webb #JWST #ESA #UnfoldTheUniverse #NASAWebb
![The Whirlpool Galaxy: Visible and X-ray Views [UltraHD]](https://i.ytimg.com/vi/u8jGr2WSFD8/hqdefault.jpg "The Whirlpool Galaxy: Visible and X-ray Views [UltraHD]
This sequence uses visible (Hubble) and X-ray (Chandra) imagery to highlight different structures within the Whirlpool galaxy (Messier 51). As seen in visible light, the familiar whirlpool shape is traced out by glowing spiral arms. These arms are composed of billions of stars orbiting about the center of the galaxy over millions of years. The pink color is from hot hydrogen gas that permeates the galaxy and indicates sites of new star formation. Silhouetted in the bright arms are dark lanes of obscuring dust that blocks visible light. The stars farther away from the center orbit more slowly and fall behind, creating the signature spiral winding arm. A massive black hole lies at the galaxy’s center. The black hole can’t be seen directly, but its presence is hinted at by the dense star clusters at the center. A second smaller spiral galaxy can be seen in the upper-right portion of the image. The second image shows the X-ray view, highlighting the very hottest gas at millions of degrees Fahrenheit. The X-rays most closely match the visible pink hot gas in active star-forming regions and are particularly strong near the galactic centers of both galaxies. X-rays are also penetrating obscuring dust.
Video: NASA, ESA, and G. Bacon (STScI)
Image: NASA and The Hubble Heritage Team (STScI)")
![Vision Across the Full Spectrum: The Crab Nebula, from Radio to X-ray [Ultra HD]](https://i.ytimg.com/vi/xBNJumQd4WM/hqdefault.jpg "Vision Across the Full Spectrum: The Crab Nebula, from Radio to X-ray [Ultra HD]
The Crab Nebula (Messier 1) is the remnant of a supernova that exploded in the year 1054 AD. This mysterious “new star,” as early skywatchers called it, was observed around the world and most notably recorded by Chinese astronomers. The supernova was triggered when the progenitor star abruptly collapsed onto its iron core, and rebounded to expel most of its layers of gas into a blast wave. This wave is seen as an optical and infrared set of filaments that continues to impact surrounding material. This material was expelled from the dying red giant progenitor star 20,000 years prior to the supernova. The ultra-dense remnant core, called a neutron star, is crushed to the size of a city. Spinning furiously, the neutron star sends out twin beams of radiation, like a lighthouse. A lot of this energy comes from the neutron star’s intense magnetic fields.
The initial radio image (from the Very Large Array Radio Telescope) shows the cool gas and dust blown out by the supernova winds. The infrared (Spitzer) image shows synchrotron radiation, an unusual form of light produced by electrons trapped in magnetic fields. The infrared image also shows hot gas. The visible-light image (Hubble) shows the detailed filamentary structure of the blast wave as it impacts the surrounding material. The ultraviolet image (XMM-Newton) shows hot, ionized gas. Finally, the X-ray emission (Chandra) from high-energy particles ejected from the pulsar shows the expanding nebula. The bipolar structure represents a powerful jet of material funneled along the neutron star’s spin axis.
Video: NASA, ESA, and G. Bacon (STScI)
Radio image: VLA/NRAO/AUI/NSF
Infrared image: NASA/Spitzer/JPL-Caltech
Optical image: NASA, ESA, and Hubble (STScI)
UltraViolet image: XMM-Newton/ESA
X-ray image: NASA/Chandra/CXC")
