Science ❯ Astronomy

Planetary Defense

Asteroids Near-Earth Objects Risk Assessment Impact Events Impact Risk Assessment NASA Impact Risk Impact Mitigation NASA Missions Asteroid Detection

8 ARTICLES

last wk.

Chinese Study Models Buried Nuclear Blast To Destroy or Deflect Asteroids

Simulations find a two-step penetrator plus a roughly 3‑megaton buried detonation can greatly increase deflection power, posing major technical, fragmentation and legal challenges.

8 ARTICLES

3w ago

Long-Tracked Near-Earth Object Reclassified as Comet After Missing Radar Detection

3 ARTICLES

4w ago

China Proposes Mach-26 Kinetic Strike on Small Near-Earth Asteroid

4 ARTICLES

4w ago

Long-Tracked Near‑Earth Object 1998 SH2 Reclassified as Comet

3 ARTICLES

last mo.

Study Proposes Drilling Into Threatening Asteroids and Detonating Nuclear Devices Inside

6 ARTICLES

last mo.

Webb Reveals 3I/ATLAS as an Ancient Comet Born in a Frigid, Metal‑Poor Environment

9 ARTICLES

last mo.

Large Asteroid 1997 NC1 to Make Safe Close Pass of Earth on June 27

19 ARTICLES

3mo ago

Newly Discovered Asteroid Skims Safely Past Earth at One-Quarter of the Moon’s Distance

11 ARTICLES

3mo ago

Study Confirms DART Nudged Asteroid Pair’s Solar Orbit in First Measured Human-Made Deflection

19 ARTICLES

5mo ago

Study Confirms DART Nudged Asteroid Pair’s Solar Orbit, a First for Humanity

19 ARTICLES

5mo ago

Webb Data Rules Out 2032 Lunar Impact for Asteroid 2024 YR4

7 ARTICLES

5mo ago

Webb Observations Eliminate 2032 Lunar-Impact Risk From Asteroid 2024 YR4

3 ARTICLES

5mo ago

Webb Observations Rule Out 2032 Lunar Strike by Asteroid 2024 YR4

15 ARTICLES

5mo ago

NASA Warns Thousands of Mid‑Sized Asteroids Remain Undetected as Deflection Capability Lags

Planetary Defense

Chinese Study Models Buried Nuclear Blast To Destroy or Deflect Asteroids

Long-Tracked Near-Earth Object Reclassified as Comet After Missing Radar Detection

China Proposes Mach-26 Kinetic Strike on Small Near-Earth Asteroid

Long-Tracked Near‑Earth Object 1998 SH2 Reclassified as Comet

Study Proposes Drilling Into Threatening Asteroids and Detonating Nuclear Devices Inside

Webb Reveals 3I/ATLAS as an Ancient Comet Born in a Frigid, Metal‑Poor Environment

Large Asteroid 1997 NC1 to Make Safe Close Pass of Earth on June 27

Newly Discovered Asteroid Skims Safely Past Earth at One-Quarter of the Moon’s Distance

Newly Discovered Asteroid to Make Very Close, Safe Earth Flyby on Monday

ESA and JAXA Seal Ramses Mission to Meet Apophis Before 2029 Earth Flyby

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Planetary Defense

NASA Confirms Asteroid 2024 YR4 Poses No Threat to Earth or Moon

New Meteor Shower Traces to Asteroid Crumbling Near the Sun

Scientists Confirm Bright Green Fireball Over UK Was a Meteor

JWST Data Rules Out 2032 Lunar Impact by Asteroid 2024 YR4

Study Confirms DART Nudged Asteroid Pair’s Solar Orbit in First Measured Human-Made Deflection

Study Confirms DART Nudged Asteroid Pair’s Solar Orbit, a First for Humanity

Webb Data Rules Out 2032 Lunar Impact for Asteroid 2024 YR4

Webb Observations Eliminate 2032 Lunar-Impact Risk From Asteroid 2024 YR4

Webb Observations Rule Out 2032 Lunar Strike by Asteroid 2024 YR4

NASA Warns Thousands of Mid‑Sized Asteroids Remain Undetected as Deflection Capability Lags

Never miss stories about

Planetary Defense