Top 10 discoveries of the decade
December 29th, 2009 - 5:17 pm ICT by ANI ( Leave a comment )
Washington, December 29 (ANI): An article in Discovery News has listed the top ten discoveries of the decade.
At number 10 is the discovery of Eris in 2005, a minor body that is 27 percent bigger than Pluto.
The finding became the trigger that changed the face of our solar system, defining the planets and adding Pluto to a growing family of dwarf planets in 2006.
At number 9 is the discovery of what appeared to be soft tissues - blood vessels, bone matrix and other cells - inside the fossilized femur of a small T. rex in 2005.
Since then, the bones have revealed amino acids that resemble those of modern chickens, firming the link between dinosaurs and birds.
At number 8 is the direct confirmation of the mysterious dark matter in the summer of 2006.
The unprecedented evidence came from the careful weighing of gas and stars flung about in the head-on smash-up between two great clusters of galaxies in the Bullet Cluster.
Until then, the existence of dark matter was inferred by the fact that galaxies have only one-fifth of the visible matter needed to create the gravity that keeps them intact.
So, the rest must be invisible to telescopes: That unseen matter is “dark.”
At number 7 is the emergence of new human ancestors, first, in the form of a 6- to 7-million-year-old skull of Sahelanthropus tchadensis - known as Toumai, in northern Chad in 2002.
Then, in 2009, the nearly complete skeleton of “Ardi,” in northeastern Ethiopia bumped the famous “Lucy” as the earliest, most complete skeleton of a human ancestor ever found.
At number 6 is astronomers seeing alien planets, or “exoplanets”, directly in 2008, using the Hubble Space Telescope and the infrared Keck and Gemini observatories in Hawaii.
At number 5 is the concept of cyborgs, that is, half-machine, half-humans, becoming a reality in the last decade, as much progress has been made with people controlling robotic limbs and computers with their minds.
At number 4 is finding of stem cells in new sources in 2007, when scientists from Kyoto University and the University of Wisconsin-Madison, essentially turned back the clock for adult skin cells, allowing these mature cells, which were preprogrammed to become skin, to act like embryonic stem cells.
At number 3 is the discovery of water ice on the surface of Mars in 2008 by NASA’s Mars Phoenix lander.
At number 2 is the development of the rough draft of the entire human genome in the year 2000, followed by a completed version in 2003.
At number 1 is the finding that in the past decade, glaciers have been melting much faster than ever expected. (ANI)
- NASA: Astronomers discover Pluto's fourth moon - Jul 21, 2011
- Experts suggest ancient fossils 'not human ancestors but extinct cousins' - Feb 17, 2011
- Massive galaxy cluster weighs as much as 800 trillion Suns - Oct 14, 2010
- Detailed maps of dark matter offer clues to galaxy cluster growth - Nov 12, 2010
- Scientist converts skin cells into brain cells - Jul 29, 2011
- Two million year old skeletons discovered - Nov 18, 2011
- Scientists find 'modern' galaxies amongst ancient galaxy clusters - May 13, 2010
- Blood from stem cells likely within next decade - Oct 27, 2011
- Could city lights help locate alien civilisations? - Nov 04, 2011
- Ancient hominids developed humanlike grip much before toolmaking practice - Apr 20, 2010
- New technique converts skin cells into brain cells - Jun 10, 2011
- Most detailed view of Pluto reveals color-changing world - Feb 05, 2010
- Stem cells used to treat kids with lethal skin disease - Aug 12, 2010
- US Hubble Space Telescope photos show that Pluto is changing colors - Feb 09, 2010
- Adult stem cells that do not age created - Oct 02, 2010
Tags: alien planets, amino acids, ardi, bone matrix, clusters of galaxies, discovery news, exoplanets, hubble space telescope, human ancestor, human ancestors, last decade, mysterious dark matter, northern chad, old skull, soft tissues, stem cells, t rex, toumai, unseen matter, visible matter