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An environmental group on Friday sued the US government, blaming the regulators of discounting herbicide that has resulted in the decline of monarch butterfly population.

Following the complaint, the Natural Resources Defense Council (NRDC) has filed suit against the Environmental Protection Agency (EPA) in US District Court in New York.

The suit has stated that the agency didn't pay any attention to the warnings about the dangers of glyphosate to monarchs. Glyphosate is a key ingredient of a commonly used herbicide and is generally used in the Monsanto Co's Roundup and other herbicides.

The lawsuit has stated that Federal law wants EPA to make sure that the pesticides it approves will not cause any 'unreasonable adverse effects on the environment, including wildlife'.

Washington - Two US astronauts will go ahead with a spacewalk this weekend despite a flaw in one of the spacesuits that allowed water to seep into the helmet, the US space agency NASA said Friday.

Mission managers made the decision after discussing what NASA called "the minor seepage of water into the helmet of Expedition 42 Flight Engineer Terry Virts of NASA following the last spacewalk on February 25."

Virts had finished his six-plus hour spacewalk and was back inside the crew lock section of the Quest airlock when he noticed water building up in his helmet and felt dampness on the back of his head.

New Delhi, Feb.28 - Swine flu has tightened its grip over India, with the death toll reaching close to 1000. Fresh cases have been reported from across the country, including Delhi, Rajasthan, Gujarat, Uttar Pradesh, Jammu and Kashmir, West Bengal, Nagaland and Bihar.

As per the latest figures released by Health Ministry, the fatal disease has claimed 965 lives so far, while total number of people tested positive till February 25, 2015 has also increased to 16,235. Rajasthan and Gujarat have been the worst-hit states so far with 234 and
231 deaths, respectively.

New Delhi, February 27 : World renowned sports brand ASICS has announced the launch of sales operations in India. This move is set to bolster sales of ASICS products in the country, further strengthening its running lineup and actively develop goods for popular sports, like cricket, as well as indoor sports, like badminton and volleyball.

Sydney, Feb 27 : Swashbuckling skipper AB de Villiers struck the fastest ever 150 runs in ODI history off 64 balls as he anchored South Africa to record a 257-run victory over the West Indies in their World Cup Pool B tie in Sydney.

Opting to bat first, South Africa piled up an imposing target of 408, thanks to De Villiers' unbeaten 162-run knock and constructive knocks from Hashim Amla (65), Faf du Plessis (62) and Rilee Rossouw (61).

In the process, De Villiers, who has been named as the Man-of-the-Match, also hit the second fastest World Cup ton off just 52 deliveries.

South Africa suffered an early blow in the form of Quinton de Kock after he was dismissed for 12 runs off a Jason Holder's delivery.

Washington: Eating fish and soaking up some sun may protect brain health, a new study suggests.

Vitamin D and marine omega-3 fatty acids may reduce the symptoms associated with a broad array of brain disorders by controlling brain serotonin, scientists say.

In a previous study, researchers found that vitamin D regulates the conversion of the essential amino acid tryptophan into serotonin and this may influence the development of autism, particularly in developing children with poor vitamin D status.

Serotonin affects a wide-range of cognitive functions and behaviours including mood, decision-making, social behaviour, impulsive behaviour, and even plays a role in social decision-making by keeping in check aggressive social responses or impulsive behaviour.