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According to a new study, the melting of Arctic sea ice and snow due to global warming is releasing harmful chemicals that were until now trapped in the ice and cold water.

The "Dirty Dozen" chemicals, were used extensively as insecticides and pesticides before being banned in 2001. The researchers warn that the releasing of these chemicals could "undermine global efforts to reduce environmental and human exposure to them".

A new study suggests that older generation have played a role in the evolution of humankind. Humans often rely on grandparents for childcare, support; physical as well as emotional.

Researchers of fossils said that the number of grandparents increased significantly 30,000 years ago as people started to live longer. As older people were able to take care of the children and pass on knowledge, the early humans were able to spread around the world and advance their lifestyle.

The new theory is put forward by American anthropologists, who estimated the life expectancy of prehistoric human ancestors by analyzing the condition of their teeth.

The Mars Science Laboratory or Curiosity of the American space agency, NASA will soon touch down in Mars' Gale crater, the agency announced.

Gale crater is a depression with a diameter of 96 miles lying at 4.5° south 137.4° east. According to NASA, Curiosity will aim to land at foot of a mountain inside the crater, "rising higher from the crater floor than Mount Rainier rises above Seattle".

Scientists from Manchester University have found that use of ‘grapheme’, which is the world’s thinnest substance, could make mobile phones, computers and host of other electronics devices, work much faster.

The researchers, who discovered the grapheme at the University of Manchester in 2004, have revealed more details about the electronics properties of the substance that is made of a single layer of carbon atoms.

The study indicates that researchers might be able to develop super fast mobile phones and computers based on grapheme in the future. The researchers from the universities of Manchester, Madrid and Moscow, studies the effects of interactions between electrons on the electronic properties of graphene.

A team of researchers in the Us have claimed that they have detected universe-changing Higgs boson particle, which is also called 'God particle', soon after a similar claim was made by researchers at Cern Institute near Geneva, which runs the Large Hadron Collider.

The Fermilab facility in Illinois operates a version of collider called, Tevatron. The researchers accelerate beams of protons and antiprotons around tunnels many miles long at extreme speeds. This is done to create high energy between particles, a process that they believe crates Higgs boson.

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