Tag: gravitational-physics

Dark matter is the elusive substance holding galaxies together. Explore ongoing mysteries and how scientists hunt for evidence of its existence.

Orbital velocity lets planets stay in their graceful path. Understand how this critical speed balances gravitational pull and inertia in space.

Tidal forces result from gravity's varying strength across celestial bodies. Learn how these forces cause ocean tides and shape planetary bodies.

Perihelion marks a planet’s closest approach to the sun. Find out how this point affects orbital speed and seasonal changes.