Science & Health
US President Obama rejects Keystone oil pipeline; Greens celebrate victory
Australia: Time-lapse video shows dramatic shelf storm descending over Sydney
Global warming: UN says gas emissions pledges are not enough
Himalayan singing bowl's 'chatter' no longer a mystery
Nasa has cracked the mystery over Mars missing atmosphere
After US and Britain, Italy to become third country to fly armed drones
NASA's 'Red Planet' mission shows how solar wind is stripping Martian atmosphere
'Designer' immune cells eradicate baby's incurable leukemia
Air pollution: North India under a haze as Punjab farmers burn crop residues
Nasa releases incredible time-lapse video of the sun in Ultra-HD
Standing for six hours a day can reduce obesity by at least 30%: Study
France to do away with ban on gay blood donors after 32 years
Delhi air 'fatal', highest pollution level in capital today
Mission Mars: NASA to recruit astronauts as part of preparation for expedition
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