IMPACT OF HUMAN IN EARTH
HUMAN IMPACT Human impact is not strictly a modern phenomenon. Areas of the Amazon rain forest once thought to be pristine were in fact considerabl…
THE LIFELINE- RIVERS
RIVERS Rivers - large natural streams of flowing water - run through every continent. Wide rivers even flow beneath Antarctica's massive ice sh…
THE SUN- A STAR
THE SUN
SOLAR SYSTEM
THE NEW SOLAR SYSTEM Ancient observers watched the celestial bodies move regularly against the starry sky. Those movement inspired the word "p…
Black Hole
BLACK HOLE AND DARK MATTER What we can observe in our sky planets, stars, gas and dust , galaxies, nebulae, asteroids, meteors, and more-is a small…
