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Shock Wave

All articles tagged with #shock wave

science1 year ago

Astronomers Witness 2 Million MPH Galactic Collision Creating Cosmic Shockwave

Astronomers have observed a high-speed collision of the galaxy NGC 7318b within Stephan's Quintet, creating a powerful shock wave and triggering star formation. This event, captured by the James Webb and Hubble Space Telescopes, offers insights into galaxy evolution and the dynamics of cosmic mergers. The WEAVE spectrograph played a crucial role in analyzing the shock wave's impact, enhancing our understanding of intergalactic processes and the universe's history.

via The Daily Galaxy --Great Discoveries Channel|
#galaxy-collision#science#shock-wave
astronomy2 years ago

"Hubble's Time-Lapse Reveals Expanding 20,000-Year-Old Supernova Bubble"

NASA's Hubble Space Telescope has captured a time-lapse movie of the expanding remnants of a supernova explosion that occurred 20,000 years ago. The Cygnus Loop nebula, located approximately 2,600 light-years away, forms a bubble-like structure that is 120 light-years in diameter. Astronomers used Hubble to zoom in on a small section of the nebula, revealing gossamer filaments resembling wrinkles in a bedsheet. These filaments, located at the outer edge of the expanding bubble, are plowing into interstellar space at speeds exceeding half a million miles per hour. The shock wave from the explosion has not slowed down in the last 20 years and is providing insights into the density differences and turbulence encountered in interstellar space.

via SciTechDaily|
#astronomy#cygnus-loop#hubble-space-telescope
science-and-astronomy2 years ago

"Captivating Time-Lapse Reveals Supernova's Expanding Bubble in Space"

Astronomers have created a time-lapse video using 20 years of Hubble Space Telescope data, showcasing the remnants of a supernova explosion that occurred around 20,000 years ago. The video focuses on a small section of the Cygnus Loop, a nebula formed from the remains of a star that exploded in a supernova. The time-lapse reveals density differences in the shock wave associated with the explosion and showcases gossamer filaments resembling twisted ribbons of light. The filaments have remained unchanged over the past 20 years, despite the shock wave's velocity being fast enough to travel from Earth to the moon in less than half an hour.

via Space.com|
#cygnus-loop#hubble-space-telescope#science-and-astronomy
astronomy2 years ago

Supernova Bubble's Mesmerizing Expansion Captured in Hubble Time-lapse

NASA's Hubble Space Telescope has captured a time-lapse movie of the expanding supernova bubble known as the Cygnus Loop. The Hubble images taken from 2001 to 2020 show how the shock front of the supernova remnant has expanded over time, revealing that it is moving into interstellar space at over half a million miles per hour. The images also provide insights into the density differences and turbulence encountered by the shock wave as it propagates through space. The close-up view of the filaments of glowing hydrogen shows ripples and twisted ribbons of light, which arise from the shock wave encountering different densities of material in the interstellar medium.

via Phys.org|
#astronomy#cygnus-loop#hubble-space-telescope