Did black hole radiation shape the universe?
A theoretical form of radiation first proposed by Stephen Hawking may have played a role in shaping the universe after the Big Bang, as suggested by recent research. The phenomenon is known as Hawking radiation. It was introduced in the 1970s when Hawking theorised that black holes could emit radiation despite their widely accepted nature as objects that absorb all matter. The study suggests that primordial black holes which are believed to have existed in the early universe, may have released intense radiation. This emission could have influenced cosmic structures in ways previously unaccounted for.
Findings from the Study
According to the study published in the Journal of Cosmology and Astroparticle Physics, a phase may have occurred in the early universe where primordial black holes dominated the energy density before evaporating through Hawking radiation. The researchers state that ultra-light primordial black holes could have rapidly gained prominence during expansion, leaving behind observable effects. The research suggests that the impact of these black holes was powerful enough to influence the formation of galaxies and cosmic structures.
Examining the Role of Hawking Radiation
The study builds on Hawking’s work. He merged aspects of quantum mechanics and general relativity. Black holes were once thought to trap everything indefinitely. The Hawking’s theory introduced the possibility of radiation emission. It is reported that larger black holes radiate at an extremely low rate, making detection with existing technology impossible. The focus shifts to smaller primordial black holes, estimated to be less than 100 tons in mass, as their radiation levels could have shaped the universe’s early structure.
Potential Implications of the Research
The study explores the possibility of Hawking relics which are stable particles resulting from the evaporation of black holes. If these particles are detected, it could provide insights into the cosmic radiation budget and the formation of atomic nuclei. The research suggests that primordial black holes must have evaporated before certain cosmic events to align with existing atomic models. While Hawking relics have not been directly observed, future technological advancements may allow for their detection. The findings open avenues for understanding black hole physics and the universe’s evolution.
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A potential new solar sail-powered satellite mission is offering an extended early warning of extreme space weather events to safely shut down the most vulnerable pieces of our tech — without waiting for them to fail mid-activity and then figuring out why. Going far beyond Earth in the traditional sense of this type of satellite, the solar sail spacecraft would provide almost 20 more minutes of warning time (up to about 60 minutes total) before some very dangerous geomagnetic storms. These eruptions, called coronal mass ejections, cause space weather events that can disrupt satellites, damage power grids, and expose astronauts to cosmic radiation through the ability to ground high-altitude commercial flights. The better the predictions, the more time for critical systems to respond, so overall it is supposed to work out.
Solar Sail Mission SWIFT Aims to Boost Space Weather Forecasting from Beyond L1 Point
According to a report published by The Conversation and contributed to Space.com, the new SWIFT (Space Weather Investigation Frontier) mission will put a satellite with a lightweight solar sail on it out at 2.1 million kilometers from Earth, which is farther than the existing L1 Lagrange point where solar wind is monitored now. That might mean a longer warning — “lead” time, in space weather speak — which would give satellite operators more time to shield their satellites, prevent astronauts from being exposed to high radiation, and allow airlines to chart the safest ways for planes.
The new solar spacecraft, Solar Cruiser, stays in orbit by a balance created from the Sun’s gravity and solar photons bounced off a reflective sail. And far larger than previous sail missions like NASA’s NanoSail-D2 and JAXA’s IKAROS. This steers the satellite post-launch.
Solar Cruiser, part of the SWIFT constellation, will measure solar wind at several vantage points for better interplanetary space weather forecasting. Enquire for more economical on-ground space weather forecasts and missions such as SWIFT that help protect our planet from imploding due to solar emissions.
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The skyscraper size of methane ice might cover around 60% of the equatorial region of Pluto, a larger area than astronomers actually estimated. This study was published on July 5, 2025 in the Journal of Geophysical Reserach. It was based on the data from NASA’s New Horizons spacecraft which captured close images of it around 10 years ago on July 14, 2025. Amid that flyby, the spacecraft located spires of methane ice, each is about 1000 feet tall.
Pluto’s Methane Spires Span Vast Equatorial Zone with Uncertain Pattern
As per NASA’s data they are separated to 4.4 miles in a shape which is somewhat parallel rows and form a geological feature which is called bladed terrain. The features seems to be larger and more spaced out verison of the penitentes of Earth which is a structure of water ice that creates a maximum of 9 feet. Almost the same structure was observed on Jupiter’s moon named Europa and also might be there on Mars.
Additional data collected at infrared frequencies signaled that the dwarf planet’s most of the region was methane rich, which shows that the spires are too. The results show that the bladed terrain of methane ice spires exists in a band that spans about 60% of the circumference of the planet.
Future Missions Needed to Confirm Pluto’s Mysterious Methane Landscape
This is equal to five times the width of the United States continental part, majority spotted on non-encounter hemispheres. However, it is still nort sure if the band is patchy or even. The band spans between 30 degrees south and north of the equator of Pluto.
Bladed terrain formation relies on methane’s long term cycle condensation and sublimation. These are controlled by the season of Pluto and its orbital variations. Straight evidence would be required to confirm the recent observations by the scientists. The most certain way to confirm the extension of bladed terrain into the dark side of Pluto is the future spacecraft mission.
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