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Asteroid vs. Meteor vs. Comet: What’s the Difference?
https://www.bioscience.com.pk/en/subject/astronomy/asteroid-vs-meteor-vs-comet-what-is-the-differenceExplore key differences between meteors, asteroids, and comets. Discover origins, characteristics, and fascinating facts about these space objects. Human curiosity about celestial objects has always drawn our gaze upward, leading us to question and...
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Humans Just Changed an Asteroid’s Path Around the Sun, And Scientists Can Now Measure It
https://www.bioscience.com.pk/en/subject/space-science/humans-just-changed-an-asteroids-path-around-the-sun-and-scientists-can-now-measure-itExperiment Earth is constantly bombarded by small particles from space. Most burn up harmlessly in the atmosphere. Larger asteroids strike far less frequently, but their potential impact can be catastrophic. For that reason, planetary defense...
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The 2-Minute Day: Newly Discovered Asteroids Are Spinning Into Oblivion
https://www.bioscience.com.pk/en/subject/space-science/the-2-minute-day-newly-discovered-asteroids-are-spinning-into-oblivionThe first data from the world’s most advanced sky-mapping camera has revealed a hidden population of asteroids spinning at dizzying speeds, challenging everything we know about how these space rocks hold themselves together. The Vera C. Rubin...
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Scientists Deploy Swarm of Spacecraft to Study Apophis as It Skims Earth in 2029
https://www.bioscience.com.pk/en/subject/space-science/asteroid-apophis-is-coming-close-to-earth-in-2029-and-scientists-are-sending-a-spacecraft-swarmWhile Apophis itself is not hazardous, understanding its behaviour will help scientists predict how comparable near‑Earth asteroids might react during close passes, enhancing risk‑assessment tools. An artist’s impression of the multiple spacecraft in...
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ESA’s Tiny CubeSat Will Land on Asteroid Apophis to Measure Earth’s Gravity Pull
https://www.bioscience.com.pk/en/subject/space-science/europe-is-sending-a-tiny-spacecraft-to-land-on-a-potentially-dangerous-asteroidduring this rare encounter. Why the 2029 Apophis Flyby Matters Apophis, a 375‑metre rock, ranks among the most scrutinised asteroids because its 2029 trajectory will bring it within roughly 32,000 kilometres of our planet—closer than many geostationary...
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Could Crater-First Nuclear Explosions Save Earth From Late-Discovered Asteroids
https://www.bioscience.com.pk/en/subject/space-science/scientists-say-we-may-need-nuclear-weapons-to-stop-asteroids-but-not-the-way-hollywood-imaginedScientists propose buried nuclear blasts that create craters to transfer energy, gradually nudging hazardous asteroids onto safer paths. Scientists have modeled a worst‑case scenario in which a sizable near‑Earth asteroid is spotted only days before a...
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Hayabusa2 Just Pulled Off a Historic Laser Experiment During a High Speed Asteroid Flyby
https://www.bioscience.com.pk/en/subject/space-science/hayabusa2-just-made-space-history-with-a-first-laser-experiment-around-an-asteroidfrom extended missions. This methodology opens doors for future exploration architectures that involve visiting multiple asteroids in a single journey. By using rapid laser ranging to determine the size, shape, and precise location of objects in...
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800 Million Years Ago an Asteroid Breakup Sent a Cosmic Bombardment to Earth, Moon and Mars
https://www.bioscience.com.pk/en/subject/space-science/a-massive-asteroid-disaster-800-million-years-ago-may-have-changed-earths-cosmic-historythe remainder drifted gradually into the same corridor via the Yarkovsky effect. This subtle force arises because rotating asteroids absorb sunlight and re‑emit heat asymmetrically, producing a tiny thrust that can modify their orbits over extensive...
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Astronomers Discover Giant Asteroids Spinning at Impossible Speeds
https://www.bioscience.com.pk/en/subject/science/a-giant-asteroid-is-spinning-30-times-faster-than-it-should-leaving-scientists-with-a-mysterythat spins every 4 minutes, making it the largest ultra-fast rotator ever recorded. Astronomers have uncovered a pair of asteroids that defy the standard laws of orbital physics, spinning at speeds so high they should theoretically tear themselves...
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Apophis 2029 Flyby: Asteroid Passes Inside Satellite Ring, Visible to Billions
https://www.bioscience.com.pk/en/subject/space-science/god-of-chaos-asteroid-is-racing-toward-earth-with-7-6-billion-people-in-its-viewing-zonemassive asteroid will sweep closer than many satellites, creating a rare sky event Asteroid Apophis will skim the Earth at roughly 32,000 km on 13 April 2029, an altitude lower than many geosynchronous satellites. Although the object will not collide...
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Moon Dust Reveals Why Earth’s Oceans Didn’t Come From Asteroids
https://www.bioscience.com.pk/en/subject/astronomy/moon-dust-reveals-why-earths-oceans-didnt-come-from-asteroidsTiny chemical clues inside Moon dust show what kinds of asteroids hit the Earth–Moon system for billions of years, and why those impacts added very little water to Earth. Earth has a short memory. Its surface is always changing as continents move,...
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Deep-Drill Nuclear Blast Could Be Earth’s Best Weapon Against Large Asteroids
https://www.bioscience.com.pk/en/subject/space-science/chinese-scientists-say-they-have-found-the-best-nuclear-strategy-to-deflect-an-asteroidTechniques May Fall Short For decades, space agencies have refined the detection and tracking of potentially hazardous asteroids, building extensive catalogs of near‑Earth objects and forecasting their paths with high accuracy. Although no known body...
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New Data From Asteroid Bennu Suggest It Formed Much Closer To The Sun Than Expected
https://www.bioscience.com.pk/en/subject/astronomy/asteroid-bennu-may-have-formed-much-closer-to-the-sun-than-scientists-thoughtSun than previous theories suggested. The findings, published in Science Advances, propose that the parent bodies of these asteroids formed near the ancient water-ice line—a critical temperature boundary in the early protoplanetary disk. This location...
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Earth Is About To Host A Rare Cosmic Experiment As The Giant Asteroid Apophis Skims Our Planet
https://www.bioscience.com.pk/en/subject/astronomy/apophis-will-zoom-past-earth-in-2029-turning-a-rare-flyby-into-a-planetary-defense-testexpose fresh material, helping scientists understand how planetary encounters contribute to the physical weathering of asteroids over time. Additionally, the weak gravitational pull of the asteroid might allow loose dust particles to rise hundreds of...
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Psyche Spacecraft’s Mars Flyby Captures Rare Images and Tests Ahead of 2029 Asteroid Mission
https://www.bioscience.com.pk/en/subject/space-science/nasas-psyche-spacecraft-captures-rare-mars-views-before-its-historic-2029-asteroid-missionNASA’s Psyche probe leverages a Mars flyby to calibrate instruments and gather unique planetary data en route to its asteroid mission. NASA’s Psyche spacecraft performed a close‑up flyby of Mars in July 2026, gathering fresh measurements and rare...
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Asteroid Ryugu Samples Reveal How Life’s Ingredients Were Preserved In Deep Space
https://www.bioscience.com.pk/en/subject/chemistry/ryugus-hidden-chemistry-reveals-how-space-rocks-may-have-delivered-lifes-ingredients-to-earthsystem. The research, published in Nature Astronomy and led by Toru Matsumoto of Kyoto University, suggests that ancient asteroids functioned as long-term chemical reservoirs, preserving volatile ingredients that eventually helped seed nascent planets....
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NASA’s Lucy Spacecraft Uncovers Bizarre Asteroid Secrets During Its Multiyear Deep Space Trek
https://www.bioscience.com.pk/en/subject/space-science/five-years-into-its-journey-nasas-lucy-has-already-made-a-discovery-no-one-expectedalready rewriting our understanding of solar system history. While its primary objective—a deep-space survey of the Trojan asteroids orbiting Jupiter—does not officially commence until August 2027, the mission has already identified unprecedented...
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China Unveils New Asteroid Early Warning Network to Boost Global Planetary Defense
https://www.bioscience.com.pk/en/subject/astronomy/china-plans-powerful-new-system-to-spot-dangerous-asteroids-before-they-reach-earththe planet, China has announced plans to build a national early‑warning network aimed at spotting potentially hazardous asteroids well before they approach Earth. China Announces Nationwide Asteroid Alert System The proposal expands Beijing’s rapidly...
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Tianwen-2 Sends First Close-Up of Earth’s Quasi-Satellite Asteroid Kamoʻoalewa
https://www.bioscience.com.pk/en/subject/astronomy/scientists-finally-reveal-the-face-of-earths-mysterious-asteroid-companion-after-a-billion-kilometer-journeyNew close‑up of asteroid Kamoʻoalewa shows its unique shape as scientists plan detailed studies and future sample missions to uncover its origins. China’s Tianwen‑2 probe has snapped the inaugural close‑up photograph of Kamoʻoalewa, a diminutive...
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New Mathematical Breakthrough Finally Solves the Chaos of Binary Asteroid Motion
https://www.bioscience.com.pk/en/subject/astronomy/astronomers-develop-a-faster-way-to-simulate-the-complicated-motion-of-binary-asteroidsAstronomers have developed a new geometric method to accurately simulate the complex orbital motion of binary asteroids with irregular shapes. Predicting the long-term behavior of binary asteroid systems—where two celestial bodies dance in a tight...