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planetary defense

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A Dark Comet Was Hiding Right Under Our Noses And Got Just 2 Million Miles From EarthThis artist’s concept depicts a near-Earth asteroid with an elongated orbit.

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A Dark Comet Was Hiding Right Under Our Noses And Got Just 2 Million Miles From EarthThis artist’s concept depicts a near-Earth asteroid with an elongated orbit.
space-iconAstronomy

A Dark Comet Was Hiding Right Under Our Noses And Got Just 2 Million Miles From Earth

clock-iconJuly 20, 2026

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Ramses Vs. Apophis: How A Record-Breaking Spacecraft Will Take Us Close To One Of The Most Dangerous Known AsteroidsEarth is visible in the background, a large rock Apophis is in the middle, and a spacecraft with solar panel splayed out is on the right.

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Ramses Vs. Apophis: How A Record-Breaking Spacecraft Will Take Us Close To One Of The Most Dangerous Known AsteroidsEarth is visible in the background, a large rock Apophis is in the middle, and a spacecraft with solar panel splayed out is on the right.
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space-iconSpace and Physics

Ramses Vs. Apophis: How A Record-Breaking Spacecraft Will Take Us Close To One Of The Most Dangerous Known Asteroids

clock-iconApril 22, 2026

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NASA Officials Said We Can’t Stop Near-Earth Asteroids – How Worried Should We Be?An illustration of a fiery asteroid heading towards Earth

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NASA Officials Said We Can’t Stop Near-Earth Asteroids – How Worried Should We Be?An illustration of a fiery asteroid heading towards Earth
space-iconAstronomy

NASA Officials Said We Can’t Stop Near-Earth Asteroids – How Worried Should We Be?

clock-iconFebruary 19, 2026
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Nuking Asteroids That Threaten Life On Earth May Make Them Stronger, Experiment At CERN SuggestsArtist impression of NASA's DART mission impacting Dimorphos, causing debris.

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Nuking Asteroids That Threaten Life On Earth May Make Them Stronger, Experiment At CERN SuggestsArtist impression of NASA's DART mission impacting Dimorphos, causing debris.
space-iconphysics

Nuking Asteroids That Threaten Life On Earth May Make Them Stronger, Experiment At CERN Suggests

clock-iconFebruary 5, 2026
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Data From Mars Lets ESA Predict 3I/ATLAS’s Path 10 Times More PreciselyHubble provides a better view of 3I/ATLAS than ExoMars TGO, but another perspective proved useful

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Data From Mars Lets ESA Predict 3I/ATLAS’s Path 10 Times More PreciselyHubble provides a better view of 3I/ATLAS than ExoMars TGO, but another perspective proved useful
space-iconAstronomy

Data From Mars Lets ESA Predict 3I/ATLAS’s Path 10 Times More Precisely

clock-iconNovember 17, 2025
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Explosive Airbursts, Like Tunguska, Might Be Hiding Among "Halloween Fireballs" Meteor ShowerTwo meteor streaks are seen among stars in this image of the sky.

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Explosive Airbursts, Like Tunguska, Might Be Hiding Among "Halloween Fireballs" Meteor ShowerTwo meteor streaks are seen among stars in this image of the sky.
space-iconAstronomy

Explosive Airbursts, Like Tunguska, Might Be Hiding Among "Halloween Fireballs" Meteor Shower

clock-iconOctober 30, 2025

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“Invisible” Asteroids Near Venus Could Pose One Of Most Unpredictable Threats To EarthIf the asteroids that co-orbit with Venus would hang around as close to it as this image portrays we'd be able to find them easily and know if they were a threat.

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“Invisible” Asteroids Near Venus Could Pose One Of Most Unpredictable Threats To EarthIf the asteroids that co-orbit with Venus would hang around as close to it as this image portrays we'd be able to find them easily and know if they were a threat.
space-iconAstronomy

“Invisible” Asteroids Near Venus Could Pose One Of Most Unpredictable Threats To Earth

clock-iconSeptember 24, 2025
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NASA Proposes Blowing Up Asteroid 2024 YR4 So It Doesn't Hit The MoonThis is image of P/2010 A2 is of a natural collission between one asteroid and another, but a targeted nuclear destruction of an asteroid might look similar.

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NASA Proposes Blowing Up Asteroid 2024 YR4 So It Doesn't Hit The MoonThis is image of P/2010 A2 is of a natural collission between one asteroid and another, but a targeted nuclear destruction of an asteroid might look similar.
space-iconAstronomy

NASA Proposes Blowing Up Asteroid 2024 YR4 So It Doesn't Hit The Moon

clock-iconSeptember 23, 2025
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Once-In-A-Decade Close Encounter With Hazardous Asteroid 2025 FA22 ApproachesAsteroid 2025 FA22 on its close approach in September 2025.

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Once-In-A-Decade Close Encounter With Hazardous Asteroid 2025 FA22 ApproachesAsteroid 2025 FA22 on its close approach in September 2025.
space-iconSpace and Physics

Once-In-A-Decade Close Encounter With Hazardous Asteroid 2025 FA22 Approaches

clock-iconSeptember 10, 2025
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How To Park A Dangerous Asteroid So It Doesn’t Bite You LaterAn artwork of NASA’s DART mission, which was a kinetic impactor designed to test whether it is possible to deflect an asteroid.

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How To Park A Dangerous Asteroid So It Doesn’t Bite You LaterAn artwork of NASA’s DART mission, which was a kinetic impactor designed to test whether it is possible to deflect an asteroid.
space-iconAstronomy

How To Park A Dangerous Asteroid So It Doesn’t Bite You Later

clock-iconSeptember 9, 2025
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"Something Unknown Is At Work Here": Unexpected Results From NASA Mission To Deflect AsteroidImages from NASA's DART mission to deflect an asteroid.

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"Something Unknown Is At Work Here": Unexpected Results From NASA Mission To Deflect AsteroidImages from NASA's DART mission to deflect an asteroid.
space-iconSpace and Physics

"Something Unknown Is At Work Here": Unexpected Results From NASA Mission To Deflect Asteroid

clock-iconJuly 9, 2025
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Dangerous Asteroid Has A 1-In-25 Chance Of Hitting The Moon – "If It Hits, It Will Be Pretty Spectacular!"A collage of three images showing the black expanse of space. Two-thirds of the collage is taken up by the black background sprinkled with small, blurry galaxies in orange, blue, and white. There are two images in a column at the right side of the collage. On the right side of the main image, not far from the top, a very faint dot is outlined with a white square. At the right, there are two zoomed in views of this area. The top box is labeled NIRCam and shows a fuzzy dot at the center of the inset. The bottom box is labeled MIRI and shows a fuzzy pinkish dot.

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Dangerous Asteroid Has A 1-In-25 Chance Of Hitting The Moon – "If It Hits, It Will Be Pretty Spectacular!"A collage of three images showing the black expanse of space. Two-thirds of the collage is taken up by the black background sprinkled with small, blurry galaxies in orange, blue, and white. There are two images in a column at the right side of the collage. On the right side of the main image, not far from the top, a very faint dot is outlined with a white square. At the right, there are two zoomed in views of this area. The top box is labeled NIRCam and shows a fuzzy dot at the center of the inset. The bottom box is labeled MIRI and shows a fuzzy pinkish dot.
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space-iconSpace and Physics

Dangerous Asteroid Has A 1-In-25 Chance Of Hitting The Moon – "If It Hits, It Will Be Pretty Spectacular!"

clock-iconApril 8, 2025
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Asteroid 2024 YR4's Impact Risk Reaches 2.6 Percent – But Still No Need To PanicArtist impression of an asteroid over the Earth

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Asteroid 2024 YR4's Impact Risk Reaches 2.6 Percent – But Still No Need To PanicArtist impression of an asteroid over the Earth
space-iconAstronomy

Asteroid 2024 YR4's Impact Risk Reaches 2.6 Percent – But Still No Need To Panic

clock-iconFebruary 18, 2025
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An Inside Look At How Humanity Is Dealing With The Threat Of Asteroid 2024 YR4Impression of asteroid 2024 YR4 near earth. A stony rock is seen far above the globe

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An Inside Look At How Humanity Is Dealing With The Threat Of Asteroid 2024 YR4Impression of asteroid 2024 YR4 near earth. A stony rock is seen far above the globe
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space-iconAstronomy

An Inside Look At How Humanity Is Dealing With The Threat Of Asteroid 2024 YR4

clock-iconFebruary 12, 2025
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Chances Of Asteroid 2024 YR4 Hitting Earth In 2032 Just Climbed To 2.3 Percentartist impression of an asteroid overimposed on a picture of Earth from space

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Chances Of Asteroid 2024 YR4 Hitting Earth In 2032 Just Climbed To 2.3 Percentartist impression of an asteroid overimposed on a picture of Earth from space
space-iconAstronomy

Chances Of Asteroid 2024 YR4 Hitting Earth In 2032 Just Climbed To 2.3 Percent

clock-iconFebruary 6, 2025
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