Tag

Remnants

All articles tagged with #remnants

astronomy1 year ago•2 min saved

"800-Year-Old Supernova SN 1181: A Spectacular Celestial Event"

Telescopes have captured the remnants of a supernova explosion, known as SN 1181, which was visible in the night sky in the year 1181 and appeared as a new star in the constellation Cassiopeia. Historical records of this event have been confirmed through the identification of the supernova remnant, Pa 30, using data from multiple telescopes. The explosion is determined to be a sub-luminous Type Iax event, resulting from the merger of two white dwarf stars, and has left behind a hot, 'undead' star projecting stellar winds into space at high speeds.

via Sky at Night Magazine|

#astronomy #historical-astronomy #remnants

science2 years ago•2 min saved

"Generational Perspective: Witnessing the Big Bang through the Eyes of Our Parents"

Physicists Arno Allan Penzias and Robert Woodrow Wilson discovered an unusual noise in their radio telescope observations in 1964, which turned out to be the cosmic microwave background (CMB) - the leftover radiation from the Big Bang. This discovery provided evidence for the Big Bang theory and earned them the Nobel Prize in Physics. Interestingly, the static "snow" seen on old analog TVs between channels also contains remnants of the CMB, although modern digital TVs and radios do not pick it up.

via IFLScience|

#analog-tv #big-bang #cosmic-microwave-background

space2 years ago•2 min saved

"NASA's James Webb Telescope Captures Stunning HD Image of Exploding Star"

NASA's James Webb Space Telescope has captured stunning images of the remnants of a supernova star named Cassiopeia A (Cas A), located approximately 11,000 light-years from Earth. The images show the inner shell of the star's dust, resembling campfire smoke and emitting vibrant orange and red hues. The Near-Infrared Camera (NIRCam) reveals the remnants reflecting a holiday spirit with a visible purple hue. Cas A exploded about 340 years ago, leaving behind filaments resembling tiny shards of glass. This high-resolution photo provides transformative insights into the star's explosion and its expanding walls colliding with the gas it shed before detonating. The discovery of Cas A helps astronomers understand the process of exploding stars and potentially sheds light on the creation of planets.

via Daily Mail|

#christmas #james-webb-space-telescope #nasa

weather2 years ago•5 min saved

Tropical Storm Hilary Threatens California with Heavy Rain and Swell

Tropical Storm Hilary is expected to strengthen into a hurricane off Mexico's Baja Peninsula before weakening and becoming a remnant low. The remnants of Hilary are likely to bring heavy rain, high surf, coastal flooding, and gusty winds to parts of Southern California and the Desert Southwest this weekend and into early next week. Flash flooding, landslides, and mudslides are possible, especially in areas recently affected by wildfires. The storm's track is influenced by a strong "heat dome" of high pressure in the central U.S. and a trough of low pressure near the West Coast.

via The Weather Channel|

#california #hurricane #remnants