Space Collisions
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NASA Spots Starquakes in a Red Giant Orbiting One of the Galaxy’s Quietest Black Holes
A red giant star orbiting a quiet black hole spins faster than expected, while internal vibrations reveal it is younger than its ancient chemistry suggests. These findings hint at a past stellar merger and challenge existing models of star evolution in low-metal environments. Future observations aim to confirm its complex cosmic history.
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Google’s Space-Based AI Data Centre Plan Faces Collision Risks in an Increasingly Crowded Orbit
Google’s Project Suncatcher aims to build a solar-powered AI data center in space. Experts warn the crowded Sun-synchronous orbit poses high collision risks from space debris, and without autonomous safeguards, even a single impact could trigger a cascade, scattering millions of fragments. This project underscores the urgent need for orbital debr...
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India's Rocket Launch With Heaviest-Ever Satellite Delayed To Avoid Collision
The ISRO has taken a cautious approach and decided to delay the launch of the Launch Vehicle Mark 3 M6 flight by 90 seconds.
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Green And Purple Auroras Are Lighting Up Skies Far Beyond The Poles, Here's Why
As enthusiasm for viewing the aurora grows, scientists are also working to understand their beauty as well as their environmental impacts.
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NASA Captures Asteroids Colliding Around Nearby Star Fomalhaut For The First Time
The team will continue to monitor CS2 using Hubble for the next three years to observe its evolution.
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Hubble Captures Rare Collision in Nearby Planetary System, Revealing Violent Planet Formation
Astronomers using NASA’s Hubble Space Telescope have witnessed rare collisions between rocky bodies in the Fomalhaut system. The glowing debris clouds created by these impacts offer a unique glimpse into how planets form and highlight challenges in identifying true exoplanets.
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Solar Storm Could Trigger Satellite Collisions In Some Conditions: Study
A new study warns that a major solar storm could disable satellite controls and trigger cascading collisions in low Earth orbit within about three days.
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Chinese Spacecraft Nearly Slammed Into Starlink Satellite, SpaceX Reveals
A Starlink satellite narrowly avoided a collision after a spacecraft launched by a Chinese rocket passed within 200 meters in orbit. SpaceX warned that the incident highlights growing safety risks caused by poor coordination as Earth’s orbital environment becomes increasingly crowded with satellites.
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Galaxy Collisions Found to Activate Supermassive Black Holes, Euclid Data Shows
Astronomers using ESA’s Euclid telescope and AI analysis have found that merging galaxies are significantly more likely to host active supermassive black holes. The gravitational chaos of a collision drives gas toward the galactic core, igniting AGN activity. This discovery strengthens the link between galaxy interactions and the energetic proces...
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Artemis Era Raises Safety Concerns as Lunar Orbit Nears Capacity, New Study Finds
As lunar exploration surges, scientists warn that the Moon’s limited stable orbits are growing crowded. Georgia Tech simulations suggest that with about 50 satellites, each may need several collision-avoidance maneuvers per year. Even now, orbiters like Chandrayaan-2 require frequent course corrections. With Artemis and private missions incoming,...
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China and NASA Coordinate to Avoid Satellite Collision for the First Time
China’s CNSA made history by alerting NASA to a possible satellite collision—marking the first instance of Beijing warning Washington in orbit. With Earth’s orbits growing crowded from megaconstellations like Starlink and Guowang, the event signals a new phase of cooperation in global space traffic control and shared responsibility for orbita...
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LIGO Detect Possible Second-Generation Black Holes with Extreme Spins
LIGO-Virgo-KAGRA observatories detected two extraordinary black hole collisions in late 2024—GW241011 and GW241110. The first involved a rapidly spinning black hole, while the second revealed one rotating opposite its orbit. These findings fit predictions for second-generation black holes, born from earlier mergers within crowded star clusters. T...
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Rising Satellite Traffic in Low Earth Orbit Sparks Collision Risk Concerns
A new study in Acta Astronautica warns that Low Earth Orbit is becoming dangerously congested. Since 2019, the number of satellites performing more than ten collision-avoidance maneuvers per month has risen sevenfold. With nearly 25,000 tracked objects and more launches planned, scientists fear a chain-reaction risk and call for stronger global coo...
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Asteroid Belt Is Slowly Fading, Study Finds
A recent study shows the asteroid belt is slowly losing material due to gravitational forces and collisions, with implications for Earth's past and future impact risks.
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Astronomers Discover Stellar Graveyard Filled With Black Hole and Neutron Star Collisions
Astronomers using LIGO-Virgo-KAGRA detected 128 collisions of black holes and neutron stars, including two rare mixed mergers that double previous records. These findings reveal new details of stellar evolution, refine Hubble constant estimates, and test Einstein’s relativity in extreme conditions. The cosmic “graveyard” offers fresh insight ...
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NASA Spots Starquakes in a Red Giant Orbiting One of the Galaxy’s Quietest Black Holes
A red giant star orbiting a quiet black hole spins faster than expected, while internal vibrations reveal it is younger than its ancient chemistry suggests. These findings hint at a past stellar merger and challenge existing models of star evolution in low-metal environments. Future observations aim to confirm its complex cosmic history.
-
Google’s Space-Based AI Data Centre Plan Faces Collision Risks in an Increasingly Crowded Orbit
Google’s Project Suncatcher aims to build a solar-powered AI data center in space. Experts warn the crowded Sun-synchronous orbit poses high collision risks from space debris, and without autonomous safeguards, even a single impact could trigger a cascade, scattering millions of fragments. This project underscores the urgent need for orbital debr...
-
India's Rocket Launch With Heaviest-Ever Satellite Delayed To Avoid Collision
The ISRO has taken a cautious approach and decided to delay the launch of the Launch Vehicle Mark 3 M6 flight by 90 seconds.
-
Green And Purple Auroras Are Lighting Up Skies Far Beyond The Poles, Here's Why
As enthusiasm for viewing the aurora grows, scientists are also working to understand their beauty as well as their environmental impacts.
-
NASA Captures Asteroids Colliding Around Nearby Star Fomalhaut For The First Time
The team will continue to monitor CS2 using Hubble for the next three years to observe its evolution.
-
Hubble Captures Rare Collision in Nearby Planetary System, Revealing Violent Planet Formation
Astronomers using NASA’s Hubble Space Telescope have witnessed rare collisions between rocky bodies in the Fomalhaut system. The glowing debris clouds created by these impacts offer a unique glimpse into how planets form and highlight challenges in identifying true exoplanets.
-
Solar Storm Could Trigger Satellite Collisions In Some Conditions: Study
A new study warns that a major solar storm could disable satellite controls and trigger cascading collisions in low Earth orbit within about three days.
-
Chinese Spacecraft Nearly Slammed Into Starlink Satellite, SpaceX Reveals
A Starlink satellite narrowly avoided a collision after a spacecraft launched by a Chinese rocket passed within 200 meters in orbit. SpaceX warned that the incident highlights growing safety risks caused by poor coordination as Earth’s orbital environment becomes increasingly crowded with satellites.
-
Galaxy Collisions Found to Activate Supermassive Black Holes, Euclid Data Shows
Astronomers using ESA’s Euclid telescope and AI analysis have found that merging galaxies are significantly more likely to host active supermassive black holes. The gravitational chaos of a collision drives gas toward the galactic core, igniting AGN activity. This discovery strengthens the link between galaxy interactions and the energetic proces...
-
Artemis Era Raises Safety Concerns as Lunar Orbit Nears Capacity, New Study Finds
As lunar exploration surges, scientists warn that the Moon’s limited stable orbits are growing crowded. Georgia Tech simulations suggest that with about 50 satellites, each may need several collision-avoidance maneuvers per year. Even now, orbiters like Chandrayaan-2 require frequent course corrections. With Artemis and private missions incoming,...
-
China and NASA Coordinate to Avoid Satellite Collision for the First Time
China’s CNSA made history by alerting NASA to a possible satellite collision—marking the first instance of Beijing warning Washington in orbit. With Earth’s orbits growing crowded from megaconstellations like Starlink and Guowang, the event signals a new phase of cooperation in global space traffic control and shared responsibility for orbita...
-
LIGO Detect Possible Second-Generation Black Holes with Extreme Spins
LIGO-Virgo-KAGRA observatories detected two extraordinary black hole collisions in late 2024—GW241011 and GW241110. The first involved a rapidly spinning black hole, while the second revealed one rotating opposite its orbit. These findings fit predictions for second-generation black holes, born from earlier mergers within crowded star clusters. T...
-
Rising Satellite Traffic in Low Earth Orbit Sparks Collision Risk Concerns
A new study in Acta Astronautica warns that Low Earth Orbit is becoming dangerously congested. Since 2019, the number of satellites performing more than ten collision-avoidance maneuvers per month has risen sevenfold. With nearly 25,000 tracked objects and more launches planned, scientists fear a chain-reaction risk and call for stronger global coo...
-
Asteroid Belt Is Slowly Fading, Study Finds
A recent study shows the asteroid belt is slowly losing material due to gravitational forces and collisions, with implications for Earth's past and future impact risks.
-
Astronomers Discover Stellar Graveyard Filled With Black Hole and Neutron Star Collisions
Astronomers using LIGO-Virgo-KAGRA detected 128 collisions of black holes and neutron stars, including two rare mixed mergers that double previous records. These findings reveal new details of stellar evolution, refine Hubble constant estimates, and test Einstein’s relativity in extreme conditions. The cosmic “graveyard” offers fresh insight ...
