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On Tuesday, chief financial officer (CFO) of search and technology major Google, Patrick Pichette, said that he has planned to retire from his job. It will be the latest change in a series of changes in the Internet company's management level. According to some analysts, Pichette's resign will not cause major disruptions in the company.

Incepta Pharmaceuticals has brought a generic version of the drug Sovaldi, of the Gilead Sciences, which is being used in treatment of hepatitis C, is a very popular drug. The generic version of the drug will be sold at a price of $10.

The generic drug of Sovaldi is named as Hopetavir and the cost of the drug for a period of 12 weeks will be $900. Cost of Gilead Sciences Inc.'s Sovaldi is very high. "Gilead is aware of unauthorized generic versions of sofosbuvir being offered in the marketplace .We're focused on enabling our eleven Indian generic partners to launch their authorized generic versions as soon as possible", the company said in an e-mail.

So far, it was the most successful drug for treating hepatitis C. And the cost of this drug for a period of twelve weeks was $86,000.

New York's Department of Environmental Conservation has come up with a revised plan for dealing with non-native mute swans, the majestic white water birds. The new plan involved less shooting and more management.

The department proposed the original plan in December 2013, which asked to shoot and destroy the eggs of the elegant long-necked birds, in order to eliminate the wild populations.

There are many other states including, Maryland, Michigan that have similar plans, with wildlife biologists citing damage that the swans can cause to the native species.

The plan was backed off by the department last March, following an outcry by New York City animal lovers, according to whom the rationale for killing the graceful birds was flawed.

The Florida Center for Investigative Reporting (FCIR) published a report and revealed that some officials in Florida have been reportedly prohibited to make use of terms such as climate change, global warming and sustainability.

Christopher Byrd, an attorney with the DEP's Office of General Counsel in Tallahassee from 2008 to 2013, said that they were asked not to make use of the terms climate change, global warming or sustainability. Byrd also said that superiors in the Office of General Counsel communicated this message to him and his colleagues.

A new experiment conducted on fruit flies has revealed that the tiny insects are master aviators.

The scientists from Cornell University in New York conducted the experiment to gauge how the flies manage to fly perfectly even though their small bodies and fast-beating wings make them inherently unstable.

Tiny magnets were attached to the flies in order to hamper or upset their flight. The tiny magnet was glued to each fly a short magnetic pulse was applied that forced them to roll like out-of-control aircraft.

Rosetta probe will make attempts to establish a contact with the Philae lander on Thursday, said the European Space Agency (ESA). The ESA launched the spacecraft in 2004 to gain insight into Comet 67P/Churyumov- Gerasimenko.

Philae was carried by Rosetta onboard to put it safely on the surface of the comet. Rosetta entered the orbit of the comet last year and sometime later dropped Philae on the comet's surface, but the lander's harpoons failed to work as intended. It was really unfortunate that the lander bounced and landed at the spot that was deprived of sunlight.

As a result, solar panels of Philae could not provide enough power to the lander to smoothly perform all operations, forcing ESA officials to put it into sleep mode.