Thursday, September 25, 2014

Mars Orbiter Mission

Mars Orbiter Mission


The Mars Orbiter Mission (MOM), also called Mangalyaan "Mars-craft" (Sanskrit मंगल maṅgala "Mars" + यान yāna "craft) is a Mars orbiter launched into Earth orbit on 5 November 2013 by the Indian Space Research Organisation (ISRO). It was successfully inserted into orbit of Mars on 24 September 2014, making India the first country in the world to successfully send a spacecraft to Mars on its very first attempt.
 
Mars Orbiter Mission
 
The success of the Mars Orbiter Mission, lauded for its low price tag of Rs 450 crore, will boost India's five-decade-old space programme.

With a spacecraft around Mars, India joins a small group of nations that have successfully sent probes to orbit or land on Mars. Others, however, failed several times initially.

Monday, August 25, 2014

Chef killed by severed snake head


Chef killed by severed snake head


Chef killed by severed snake head
A snake came back from the dead to deliver a deadly bite to a chef, 20 minutes after he had chopped its head off.  The chef was preparing a dish from cobra flesh when the snake’s head bit him.
Victim Peng Fan had chopped off the head of the Indochinese spitting cobra, a rare delicacy in Asia, to prepare for making the special dish. But when he went to throw the severed snake head into the bin it bit him on the hand, injecting him with fast-acting, deadly venom.
Police say Mr Peng died before he could be given lifesaving anti-venom in hospital.

Tuesday, February 18, 2014

44-Year-Old Fetus in 84 –Year-Old Woman


44-Year-Old Fetus in 84 –Year-Old Woman



44-Year-Old Fetus in 84 –Year-Old Woman
44-Year-Old Fetus in 84 –Year-Old Woman
A 44-year-old fetus has been found in an 84-year-old Brazilian woman. The discovery came last Friday, when the woman's intense stomach pains landed her in a hospital in Tocantins state in central Brazil.

X-rays revealed the unthinkable: a "stone baby." This is a rare phenomenon known as lithopedion, in which the fetus grows and then dies outside of the uterus. With the body unable to rid itself of it, the dead fetus is instead covered in calcium as a means of protection, resulting in the "stone baby."

The X-rays discovered the face, the bones of the arms, of the legs, the ribs, and the spine of the fetus, which is believed to have died at between 20 and 28 weeks. That woman says she does not want the fetus removed.

Sunday, October 27, 2013

Dolly - First mammal to be cloned

Dolly - First mammal to be cloned

Dolly - First mammal to be cloned


Dolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute, part of the University of Edinburgh. She was born on 5 July 1996 and she lived until the age of six, at which point she died from a progressive lung disease. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore proved that a cell taken from a specific part of the body could recreate a whole individual.

Dolly was created using the technique of somatic cell nuclear transfer, where the cell nucleus from an adult cell is transferred into an unfertilised oocyte (developing egg cell) that has had its nucleus removed. The hybrid cell is then stimulated to divide by an electric shock, and when it develops into a blastocyst it is implanted in a surrogate mother. Dolly was the first clone produced from a cell taken from an adult mammal. The production of Dolly showed that genes in the nucleus of such a mature differentiated somatic cell are still capable of reverting to an embryonic totipotent state, creating a cell that can then go on to develop into any part of an animal. Dolly's existence was announced to the public on 22 February 1997.

Dolly lived her entire life at the Roslin Institute in Edinburgh. There she was bred with a Welsh Mountain ram and produced six lambs in total. Her first lamb, named Bonnie, was born in April 1998. The next year Dolly produced twin lambs Sally and Rosie, and she gave birth to triplets Lucy, Darcy and Cotton in the year after that. In the autumn of 2001, at the age of four, Dolly developed arthritis and began to walk stiffly, but this was successfully treated with anti-inflammatory drugs.

On 14 February 2003, Dolly was euthanized because she had a progressive lung disease and severe arthritis. A Finn Dorset such as Dolly has a life expectancy of around 11 to 12 years, but Dolly lived to be only six years of age. A post-mortem examination showed she had a form of lung cancer called Jaagsiekte, which is a fairly common disease of sheep and is caused by the retrovirus JSRV. Such lung diseases are a particular danger for sheep kept indoors, and Dolly had to sleep inside for security reasons.

After cloning was successfully demonstrated through the production of Dolly, many other large mammals have been cloned, including horses and bulls. Cloning may have uses in preserving endangered species and may become a viable tool for reviving extinct species. Cloning of domesticated animals could be important in the future production of transgenic livestock.