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Space News
Brighter Side of News
13h
265
Image Credit: Brighter Side of News
Schrödinger’s cat theory may prove that parallel universes actually exist
- The many-worlds interpretation presents a scenario where infinite realities coexist, each branching off from quantum events in the universe.
- This concept differs from other multiverse theories by suggesting that alternate realities exist in the same space and time.
- The challenge arises from understanding why we only experience one reality out of the many theoretically possible outcomes in quantum events.
- Scientists from Autonomous University of Barcelona are investigating how classical features might emerge from a purely quantum system.
- Their simulations indicate that as particles become more entangled and interact, quantum effects diminish, leading to a single dominant reality.
- Their research sheds light on the transition from quantum to classical behavior without relying on external factors.
- Decoherence, the process through which quantum superpositions lose coherence due to interactions, plays a key role in understanding this transition.
- The work emphasizes the impact of slow, coarse observables in anchoring a system to a classical trajectory.
- The researchers' findings challenge the notion that specific conditions are necessary for classicality to emerge in large quantum systems.
- While the many-worlds interpretation offers insights into the nature of reality, it also faces challenges in incorporating the complexities of general relativity and macroscopic quantum effects.
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Livescience
1d
22
Image Credit: Livescience
Space photo of the week: Bizarre 1-armed spiral galaxy stuns Hubble scientists
- NGC 1961, also known as Arp 184, is a peculiar galaxy with a single spiral arm located 190 million light-years away in the constellation Camelopardalis.
- Hubble's latest image of NGC 1961 showcases its unusual structure with a lone spiral arm, making it a unique addition to the Atlas of Peculiar Galaxies.
- This galaxy has been a target for Hubble due to hosting four supernovas over the past four decades, offering rare opportunities to observe these stellar explosions.
- NGC 1961 was discovered by William Herschel in 1788 and stands out among galaxies for its distinct characteristics, adding to the diversity of cosmic formations in the universe.
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Mensjournal
1d
72
Image Credit: Mensjournal
Soviet Spacecraft Kosmos 482 Crashes to Earth After 53 Years
- Soviet-era spacecraft Kosmos 482 crashes to Earth after 53 years in orbit, falling into the Indian Ocean.
- The spacecraft was launched in 1972 to explore Venus but remained in a high elliptical orbit of Earth due to a malfunction.
- Kosmos 482 broke into pieces after a failed launch, and the descent craft remained in a decaying orbit for over 50 years.
- European Union Space Surveillance and Tracking Agency monitored the controlled re-entry of the spacecraft, predicting a low probability of impact on populated areas.
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Digitaltrends
1d
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Image Credit: Digitaltrends
Watch SpaceX’s Starship on its way for 9th test flight
- SpaceX is preparing for the ninth test flight of its Starship megarocket at its Starbase facility in Boca Chica, Texas.
- The Starship will be raised atop the first-stage Super Heavy booster, capable of creating around 17 million pounds of thrust at launch.
- The test launch date has not been announced yet, but it is expected to take place before the end of the month.
- NASA plans to use the Starship for crew and cargo missions to the moon as part of the Artemis program, with the goal of landing astronauts on Mars in the 2030s.
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Knowridge
13h
192
Image Credit: Knowridge
Venus’s surprisingly thin crust might hold clues to its fiery past
- New research indicates that Venus's crust is surprisingly thin compared to previous assumptions, with an average thickness of about 25 miles and at most 40 miles.
- Unlike Earth, Venus does not have plate tectonics, but its crust is still evolving through processes like crust breaking off or melting, contributing to volcanic activity.
- This discovery reshapes scientists' understanding of Venus's geology, atmosphere, and volcanic activity, highlighting the planet's unique way of recycling its crust.
- Upcoming missions such as NASA's DAVINCI and VERITAS, along with the European Space Agency's EnVision mission, aim to gather more data about Venus's surface to confirm geological processes and understand volcanic activity better.
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Hackaday
17h
254
Image Credit: Hackaday
Open Source ELINT Accidentally from NASA
- Nukes accidentally discovered strange happenings in the radio spectrum by analyzing public data from NASA's SMAP satellite, which is primarily used to measure soil moisture.
- The SMAP satellite operates at 1.41 GHz in the L-band, a frequency reserved for specialized purposes like radio astronomy, with low-power safety critical data systems to minimize interference.
- Detection of signals at 1.41 GHz, where high-power transmitters are not expected, can indicate unusual and interesting occurrences such as military jamming, providing insight into geopolitical activities.
- Accessing and analyzing this satellite data with a simple Python script highlights the transition of once highly secretive jamming technology into publicly available information, revealing unexpected uses of satellites.
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Spaceflightnow
21h
89
Live coverage: 28 Starlink satellites to launch on Falcon 9 booster making record breaking 28th flight
- SpaceX is preparing to launch a Falcon 9 booster for its 28th flight, aiming to deliver 28 Starlink satellites into orbit.
- The liftoff is scheduled from Launch Complex 39A at NASA’s Kennedy Space Center, marking the 100th launch of a single-stick Falcon 9 rocket from this pad.
- Weather forecast suggests a 50 percent chance of favorable conditions, with concerns about cloud cover due to expected storms.
- After liftoff, SpaceX plans to land the booster on its drone ship in the Atlantic Ocean, which would mark the 120th successful landing for the drone ship.
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The Verge
1d
132
Image Credit: The Verge
United’s Starlink-powered Wi-Fi is the end of airplane mode
- United Airlines is equipping its planes with Starlink's satellite Wi-Fi, offering fast and reliable connectivity.
- The test plane was an Embraer E-175 with United executives serving first-class snacks and Champagne to passengers.
- United is no longer asking passengers to switch phones to airplane mode, encouraging browsing, streaming, and gaming inflight.
- United is the first of the big three domestic airlines to partner with SpaceX's Starlink for in-flight Wi-Fi.
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Earthsky
1d
90
Image Credit: Earthsky
Nearby star’s music sparks a surprising discovery
- Astronomers used the Keck Observatory in Hawaii to listen to the "music" of the nearby star HD 219134, discovering it is slightly smaller than previously thought and providing insights into stars' rotation and planets' characteristics.
- By studying the subtle vibrations or oscillations emitted by stars, astronomers can determine their mass, size, and age, as well as measure the sizes and densities of planets orbiting them.
- The technique of listening to stars' sound waves, known as asteroseismology, allows scientists to gain valuable information about stars' interiors and evolutionary processes.
- The Keck Planet Finder instrument at the W. M. Keck Observatory was crucial in detecting the stellar vibrations of the cooler orange star HD 219134, aiding in precise measurements and discoveries.
- Studying the oscillations within stars like HD 219134 helps determine their ages, rotational speeds, and how they evolve over billions of years, contributing to a better understanding of stellar lifetimes.
- The new study on HD 219134 revealed it to be more than twice the age of our sun, emphasizing the importance of asteroseismic data in calibrating stellar models and accurately estimating star ages.
- Surprisingly, HD 219134 was found to be about 4% smaller than previously believed, challenging existing stellar models and raising questions about the causes of this size difference.
- With at least five confirmed planets, including super-Earths, orbiting HD 219134, the refined measurements of the star's size will aid in better understanding the planets' properties and potential for extraterrestrial life.
- Further research using instruments like the Keck Planet Finder can help in the quest to identify planets with potential for hosting life and determine the ages of stars and their associated planetary systems more accurately.
- Studying the music of nearby stars through asteroseismology offers valuable insights into stellar evolution, planetary characteristics, and the potential for discovering life beyond Earth.
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Earthsky
1d
0
Image Credit: Earthsky
Supermassive black hole roaming the darkness between stars
- Scientists have identified a supermassive black hole wandering between stars for the first time, instead of at a galaxy's core.
- This black hole, about 1 million times the mass of the sun, was discovered when it consumed a nearby star, emitting a burst of energy.
- Named AT2024tvd, the black hole was found through a tidal disruption event from 600 million light-years away.
- This discovery challenges previous beliefs about black hole locations and may lead to finding more wandering black holes in the future.
- A galaxy containing this wandering black hole also has a larger one at its core, 2,600 light-years away, with 100 million times the sun's mass.
- Observations with the Zwicky Transient Facility in California confirmed the bright flare as a supermassive black hole event.
- Possible origins of the wandering black hole include interactions with other black holes in the galaxy's core or being from a merged galaxy.
- Yuhan Yao of UC Berkeley led the study and believes this discovery will inspire further research on offset tidal disruption events.
- The detection of this unique supermassive black hole emphasizes the ongoing exploration and understanding of celestial phenomena.
- The findings provide valuable insights into the behavior and dynamics of black holes in varying galactic environments.
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Earthsky
1d
271
Image Credit: Earthsky
4 keys to understanding moon phases
- The changing moon phases we see in the sky are a result of the moon's position with respect to the sun as it orbits Earth.
- Understanding moon phases involves considering the sun's illumination of the moon and its location in space.
- The moon's position in its orbit affects the phases we observe, from new moon to full moon and back.
- The moon rises in the east and sets in the west every day, following Earth's rotation beneath the sky.
- The moon's orbital motion around Earth takes about a month, contributing to its changing position in the sky.
- The moon's eastward orbital motion causes it to move about 12 to 13 degrees each day on the sky's dome.
- Due to Earth's rotation, the moon rises about 50 minutes later each day, leading to varying nightly appearances.
- Different moon phases like new moon, waxing crescent, full moon, and waning crescent offer unique viewing experiences.
- Observing the moon's changing phases helps us appreciate its celestial beauty and understand its orbital dynamics.
- Moon phases provide insights into the interactions between the sun, Earth, and the moon in our cosmic neighborhood.
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Knowridge
1d
109
Image Credit: Knowridge
The first galaxies might ignite the universe’s eternal glow
- New research suggests that early galaxies, specifically elliptical galaxies, may have contributed more to the cosmic microwave background radiation than previously believed.
- A study published in Nuclear Physics B argues that early galaxies could account for at least 1.4% of the background radiation, challenging core ideas of modern cosmology.
- The research indicates that powerful star formations in early elliptical galaxies might have generated significant radiation, potentially impacting our understanding of the universe's origins.
- The findings raise questions about the standard model of cosmology and the true source of the universe's background radiation, prompting further exploration into the role of early galaxies in shaping the cosmos.
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Metro
1d
310
Image Credit: Metro
Huge chunk of Soviet rocket may have broken up over southern England
- An out-of-control Soviet spacecraft, Kosmos 482, which launched in 1972 and was intended for Venus, crash-landed back on Earth.
- The descent capsule of Kosmos 482, designed to withstand intense heat, may have broken up over the Indian Ocean according to Roscosmos and Nasa.
- The exact landing site of the spacecraft is uncertain, with predictions pointing to the Indian Ocean west of Jakarta, Indonesia, but a potential wide window of landing sites include southern England.
- European Space Agency confirms the satellite decayed within the estimated re-entry window, with no visual observation of the final re-entry pointing towards a possible ocean landing.
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Knowridge
1d
95
Image Credit: Knowridge
Roaming black hole devours star in deep space: A rare cosmic event
- Astronomers using NASA’s Hubble Space Telescope observed a massive black hole consuming a star 600 million light-years away in a rare cosmic event known as a tidal disruption event (TDE).
- The TDE, named AT2024tvd, is unique as it occurred far from the center of its host galaxy, indicating the presence of a 'wandering' black hole roaming through the galaxy's outskirts.
- The galaxy hosting AT2024tvd contains two massive black holes, with the wandering one weighing about 1 million solar masses and was confirmed to be in an offset position.
- The discovery of AT2024tvd sheds light on the existence of roaming black holes and may help in identifying more of them through similar tidal disruption events, as suggested by lead study author Yuhan Yao of UC Berkeley.
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