2 GREAT DISCOVERIES OF 21 CENTUARY
share
1.SIGNS OF WATER ON MARS
Mars Surface Gives up Signs of WaterIn 2008, NASA's Mars Phoenix lander touched down on the Red Planet to confirm the presence of water and seek out signs of organic compounds.Eight years before, the Mars Global Surveyor spotted what appeared to be gullies carved into the landscape by flowing water. More recently, the Mars Exploration Rovers have uncovered minerals that also indicated the presenceof ancient water. But proof of modern-day water was elusively
 2 ; COMPLETE MAPPING OF HUMAN GENOME
Coiled up inside every human cell sit 23 molecules that, if unwound and placed end to end, would stretch about three feet. Those molecules, known as chromosomes, contain all the instructions necessary to build an entire human being. This mapping was coming completed in 2003.
share
No comments:
Post a Comment