When a massive star goes supernova, its explosion must be a perfectly spherical fireball at least, that’s been the theoretical assumption for the last several decades. However, recent observations with the European Southern Observatory’s Very Large Telescope (VLT) contradict this assumption. Just a day after its detection, researchers were able to detect the supernova SN 2024ggi, employing spectro-polarimetry to examine its shock explosion’s geometric configuration, particularly the shock explosion that occurs as the explosion’s shock wave breaks through its outer shell.
But contrary to the assumption that this shock explosion was perfectly spherical, this explosion had a flattened, clamshell appearance with a well-defined symmetry axis, which was still preserved as the material expanded even as the shock wave crashed into the surrounding material. CORE COLLAPSE MODELS UNCONماSpectropolarimetry, the method used in this observation, supplies measurements of a supernova’s explosion’s geometric configuration, which would otherwise remain inaccessible. Specifically, this method provides measurements of polarization, which remains undetected because of the explosion’s opacity.
Meanwhile, as cosmic blasts revise the text-books of astrophysics, there’s more than enough excitement on planet Earth—and elsewhere. For example, some organisms surprisingly flourish in the radioactive aftermath of Chernobyl’s Fourth Reactor, where most others die. Specifically, the black fungus species Cladosporium sphaerospermum grows well within the radioactive ripe remains of that reactor’s meltdown, thanks largely due to its high concentration of the ‘melanin’ pigment. Indeed, this ‘melanin fungus’ displays a property called “radiosynthesis,” whereby its ‘ionizing radiation’ seems clearly to increase its ‘metabolic rates.’
Laboratory studies confirm that ‘ionizing-radiation-exposed’ ‘melanin molecules demonstrate heightened ‘electronic properties,’ increasing their ‘NADH reducting capacities’ with ‘accelerated fungal growth rates, even on trace nutrient supplies.’ However, this property isn’t shared throughout all ‘melanin-fungal species,’ but within the ‘C. sphaerosperm fungus,’ the property ‘of enhanced fungal growth rates, even with intensities hundreds of times higher than background radiation levels,’ is demonstrably ‘remarkable.’ ‘Radiation-directional fungal growth’ properties, also termed ‘Radiotropism,’ were moreover positively found within ‘isolates grown from the ‘Chernobyl Excluded Zones,’ strongly ‘imlying biological advantages.’ Successful ‘International Space Station-based’ ‘space-radiation-exposures’ validated ‘space-grown fungal-mat’s reduced ‘space-radiation-penetration,’ compared with their control counterparts, clearly ‘verifying their use as ‘living
However, space itself may be as dangerous to machines as it is to biological systems. Recent strong solar flares have highlighted the susceptibility of Airbus’s A320 series, the most produced passenger airliner in the world. Its ‘fly-by-wire’ controls use computer-processed sensor inputs. However, inquiries led to the discovery that strong bursts of solar radiation can alter such sensor inputs, threatening the control of the aircraft.
This was apparent following an incident in October, in which a JetBlue-operated A320 suffered a sudden altitude change, injuring passengers, which resulted in an emergency landing. An Alert Operators Transmission was subsequently issued, requiring necessary repairs before the aeroplanes were allowed back into service. In regards to the estimated 5,100 other airliners, a ‘software rollback,’ taking two hours, is necessary, but in the case of the other 900, ‘hardware changes’ must be implemented. Air carriers frantically sought compliance, with some airlines, such as Avianca, affecting as many as 70% of their aircraft.
An example of this focus on aviation technology is the recent recall associated with space weather effects that pose a growing concern. Solar activity occurs according to a periodic approximate 11-Year Cycle. However, isolated events may cause sudden peaks in radiation, affecting communications, satellite navigation, or avionics. Efforts focus on the development of models predicting geomagnetic storms with operational accuracy, consisting of real-time satellite, ionospheric, and machine-learning algorithms. Strategies for pilots and air dispatchers will allow them to issue warnings: routing through areas outside the polar regions in HF blackout events, altitude changes, or changes in inter-aircraft distances in reduced navigation accuracy.
The asymmetry in the death throes of other stars, the conversion of radiation into fuel by fungi, or storm clouds disabling jets offer reminders that extremophiles always call into question our assumptions, whether in astrophysics, biological studies, or aerospace engineering. Each finding provides greater insight into the complexities of how material, life, or technology respond, or do not respond, to the most extreme conditions found within our universe.
