Impact Force: A 10m asteroid hitting at 20km/s releases energy equivalent to the Tsar Bomba.

Shockwave: Hypersonic Expansion

Composition: Metallic asteroids are remnants of early planetary cores, rich in Iron and Nickel.

Mining Value: $100+ Trillion

Global Winter: The impact threw enough soot into the atmosphere to block the Sun for 2 years, collapsing the food chain.

Result: 75% Species Loss

The 2029 Flyby: This 370m asteroid will pass within 32,000 km of Earth—closer than our TV satellites.

Event Date: April 13, 2029

Asteroid Moons: About 15% of asteroids are "binary," where a smaller "moonlet" orbits a larger primary body.

Tested by: NASA DART Mission

Deflection: Instead of blowing it up, we hit it with a probe to slightly change its orbital velocity ($v$).

Goal: Early Interception

Sunlight Thrust: As an asteroid rotates, it emits heat. This uneven radiation acts like a tiny thruster, shifting its orbit over millions of years.

Factor: Rotation & Albedo

Jupiter's Escort: Thousands of asteroids share Jupiter's orbit, trapped in the L4 and L5 points by a balance of gravity.

Mission: NASA Lucy (2021-2033)

The Empty Space: Unlike movies, the average distance between Main Belt asteroids is nearly 1 Million KM.

Density: Practically Vacuum

Jupiter's Influence: The belt isn't a destroyed planet, but material that never formed into one because Jupiter's gravity kept stirring it up.

Location: Between Mars & Jupiter

The Empty Lanes: There are "holes" in the belt where no asteroids exist. These match Jupiter's orbital resonance (3:1, 5:2, etc.).

Effect: Orbital Destabilization

The Contrasting Pair: Vesta is dry and rocky (inner belt), while Ceres is icy and may have an underground ocean (outer belt).

Mission: NASA Dawn (2007-2018)