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A new study has revealed that first version of earth's solar system might have been wrecked by Jupiter. According to the study, the solar system may have once been made up of many super-earths, until the largest planet in the Solar System came.

The study was conducted by Konstantin Batygin, Caltech planetary scientist, and Gregory Laughlin, professor of astronomy and astrophysics at UC Santa Cruz. As per the study, the inner system would have had a number of planets that were bigger than Earth.

John Urschel, a Candian-born mathematician and American footballer, has got his paper titled 'A Cascadic Multigrid Algorithm for Computing the Fiedler Vector' published in the Journal of Computational Mathematics.

In an article for the Player's Tribune, Urschel said that many must be assuming that he would stop playing, but such is not the case. He will continue playing.

"Objectively, I shouldn't (continue playing football), I have a bright career ahead of me in mathematics. ... I have no desire to try to accumulate $10 million in the bank. I drive a used hatchback and live on less than $25k a year", said Urschel.

On Tuesday, a Northern California police officer was shot dead after he responded to a call from a man, who threatened to commit suicide. According to the San Jose Police Department, officers also faced firing, when they moved towards an apartment building and one of the officers was killed. The shot officer has not been yet identified.

Many streets in East San Jose were closed off, when officers started finding the shooter. According to authorities, they have been using all San Jose police resources and they have also asked for help from outside.

A frog found in Ecuador's western Andean forest seems to change its skin texture in minutes and it apparently copies the texture on which it sits. In the beginning, the frog was found by a Case Western Reserve Univ. PhD student and her husband, who is a project manager at Cleveland Metroparks' Natural Resources Division. The amphibian is considered to be the first, which have the capability to alter its texture.

A manuscript was coauthored by the researchers, Katherine and Tim Krynak, and colleagues from Universidad Indoamérica and Tropical Herping, which explained about the new animal and its skin texture plasticity in the Zoological Journal of the Linnean Society this week.

Climate scientists and cultural figures on Tuesday have called on the national history and science museums to sever their ties with the fossil fuel industry.

In a letter, the scientists have said that the corporate sponsorships from the fossil fuel industry have threatened the credibility of the important institutions and have eroded the public trust.

The letter which was signed by around three dozen scientists and museum professionals, said, "We are concerned that the integrity of these institutions is compromised by association with special interests who obfuscate climate science, fight environmental regulation, oppose clean energy legislation, and seek to ease limits on industrial pollution".

According to political analysts, discussions about the eligibility of Senator Ted Cruz for presidential elections in the United States should end now. His eligibility has been questioned because of his birth in Canada. His mother is an American citizen so he is considered to have American citizenship right from his birth. He was born in December of 1970 in Canada.

Some say that according to the constitution, it is not necessary that the President should be a 'citizen', whereas others say that the President should be a 'Natural Born' citizen. According to Mark Jones, a political expert at Rice University, the term has already declared that Cruz is eligible for the presidential elections.