'Big explosion' presentation slideshows

The beginning of the Universe as we know it began about 13.7 billion years ago.

The beginning of the Universe as we know it began about 13.7 billion years ago. What is Cosmology?. Cosmology is the study of the origin, structure, and evolution of the Universe. The Universe itself is defined as all matter, energy, and spacetime.

669 views • 52 slides

Antimatter

438 views • 25 slides

Constellations in the sky

Constellations in the sky. Stars are very big. Stars are far away. Stars are very bright, because they produce light. Objects outside the Earth. The constellations do not exist in 3d. Orion. Orion's important objects.

267 views • 25 slides

Earth in the Universe

Earth in the Universe. The Sun and stars appear to move in an arc across the sky from east to west . BUT in reality, the Earth moves - spins on its axis (rotates). . http://youtu.be/_9gy_BOnEOM 4 minutes.

332 views • 13 slides