Using ground-based facilities and space telescopes, an international team of astronomers has conducted multiwavelength observations of a galaxy cluster known as CLJ1449+0856. The observational campaign detected multiple faint radio-jets, what could shed more light on the nature of this cluster. The finding is reported in a paper published February 23 on the arXiv pre-print server. Source: https://phys.org/news/2021-03-astronomers-faint-radio-jets-galaxy-cluster.html…
Tag: Jets
Image: Hubble views a baby star’s tantrums
Herbig-Haro objects are some of the rarer sights in the night sky, taking the form of thin spindly jets of matter floating among the surrounding gas and stars. The two Herbig-Haro objects cataloged as HH46 and HH47, seen in this image taken with the NASA/ESA Hubble Space Telescope, were spotted in the constellation of Vela (the Sails), at a distance of…
Images of shadows cast by jet contrails
Jet contrail shadows may appear to be cast by a low-altitude bright light shining upwards. In fact, this shadow is normally cast on clouds below the jet and its contrail. Source: https://earthsky.org/todays-image/jet-contrail-casts-a-shadow…
The First Black Hole Ever Discovered is More Massive Than We Thought
Neel V. Patel, writing at MIT Technology Review: Einstein first predicted the existence of black holes when he published his theory of general relativity in 1916, describing how gravity shapes the fabric of spacetime. But astronomers didn’t spot one until 1964, some 6,070 light-years away in the Cygnus constellation. Geiger counters launched into space detected cosmic x-rays coming from a region…
Are the US Military’s GPS Tests Threatening Airline Safety?
Long-time Slashdot reader cusco quotes a new report from IEEE Spectrum: In August 2018, a passenger aircraft in Idaho, flying in smoky conditions, reportedly suffered GPS interference from military tests and was saved from crashing into a mountain only by the last-minute intervention of an air traffic controller. “Loss of life can happen because air traffic control and a flight crew…
Upward-shooting ‘blue jet’ lightning spotted from International Space Station
The phenomenon can be difficult to observe from the ground below. Source: https://www.livescience.com/blue-jets-of-lightning.html
Hundreds of never-before-seen life-forms live in this 6,000-foot-deep volcano’s acid jets
Researchers discover 300 novel microbes living near the blazing hot jets of an underwater volcano near New Zealand Source: https://www.livescience.com/extreme-microbes-underwater-volcano.html
Striped brown dwarf looks a lot like Jupiter
The surface features of brown dwarfs – objects midway in mass between planets and stars – can’t be seen. But researchers have found a way to reveal Jupiter-like stripes and bands in the atmosphere of the closest brown dwarf, Luhman 16B. Source: https://earthsky.org/space/brown-dwarf-luhman-16b-jupiter-like-stripes…
Jets from Unusual Galaxy Centaurus A
The jets emanating from Source: https://apod.nasa.gov/apod/astropix.html…
Supersonic Jets Get a Boost as FAA Issues Rule to Spur Tests
New regulations for testing the next generation of ultra-fast jets were finalized by the U.S. Federal Aviation Administration, an attempt to streamline the development of supersonic flight. From a report: The FAA on Wednesday announced the regulations as several companies work on developing prototypes of aircraft capable of flying faster than the speed of sound, it said in a press release….