ProjectileDiameter: Projectile Velocity: (Kilometers per second) (Results are Approximate!) Millions of collisions since the late 1990s. Check out other programs in the Astronomy Workshop. Solar System Collisions written by Dr. Douglas P. Hamilton. Tool for simulating the impact of an asteroid or comet with planets and moons in the Solar System.
BiggestAsteroid Impacts In Earth's History. An Artist's Representation Of An Asteroid Belt In Orbit Around A Star. Time and again, asteroid impacts on Earth

Basedon those two methods, researchers estimate that an asteroid or comet 1 kilometer wide or larger hits the planet every 600,000 to 700,000 years. The new study, however, suggests that in the past million years alone, four kilometer-size objects pummeled the continents—and, given that two-thirds of the planet is covered by water,

Anewly discovered asteroid roughly the size of an Olympic swimming pool has a “small chance” of colliding with Earth in 23 years, with a potential impact on Valentine’s Day 2046, according
Whenfirst detected, the asteroid is about 0.38 au (57 million kilometers or 35 million miles) from Earth, approaching our planet at about 5 km/s (3 mi/s or 11,000 mph), and slowly getting brighter. 2021 PDC is observed extensively during the week after discovery, and as the observational dataset grows from one day to the next, the impact
Thephenomenon was observed around nuclear weapon test explosions during the Cold War. Emiliani, Kraus, and Shoemaker (1981, Earth and Planetary Science Letters 55, 317-334) estimated the radius of damage before the site of the impact was known. Their airblast is shown here applied to the Chicxulub impact site.
Insupport of NASA's Planetary Defense Coordination Office (PDCO), the Asteroid Threat Assessment Project (ATAP) has developed a state-of-the-art Probabilistic Asteroid Impact Risk (PAIR) model for evaluating the potential consequences of asteroids striking Earth [12, 16, [20], [21], [22]].The PAIR model uses fast-running physics-based
Theseimpact zones show where scientists have found meteorites, or the impact craters of meteorites, some dating back as far as the year 2,300BC. The data is from the Meteocritical Society and
Beholdthe Best Space Images of 2023. This year’s most interesting space images include infrared views of galactic “bones,” an asteroid’s double moon, Jupiter’s
Mn0G4.
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    • asteroid impacts on earth map