1. Elliptical Orbits: Planets don't orbit the sun in perfect circles, but rather in elliptical paths. This means their distance from t...

  1. The Andromeda Galaxy is the largest member of the Local Group of galaxies. 2. It is estimated to be around 4.5 billion years older than...

  1.  A black hole is a region in space where gravity is so strong that nothing, including light, can escape. 2. Formation: Black holes are ...

  1. The Milky Way is a barred spiral galaxy: It has a central bar-shaped structure and spiral arms of stars, gas, and dust. 2. The galaxy i...