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  • IAF always cautious and alert says Air Chief Marshal Dhanoa:-As tensions continue between India and Pakistan over the abrogation of special status to Jammu and Kashmir, Air Chief Marshal B S Dhanoa has said the Indian Air Force (IAF) is "always cautious and alert" to check any untoward aerial movement on the border....
  • Chandrayaan-2 placed in Lunar orbit, focus now on soft-landing:- India's Chandrayaan-2 mission, aimed at soft landing a rover in the unexplored south pole of the Moon, achieved a major milestone as the ISRO successfully injected the spacecraft into the lunar orbit on Tuesday. ...
  • Chandrayaan 2 successfully enters orbit around Moon:-In a major milestone for India's Moon mission, the Chandrayaan-2 spacecraft successfully entered the lunar orbit on Tuesday. Lunar Orbit Insertion (LOI) maneuver was completed successfully at 0902 hours as planned, using the onboard propulsion system, the Bengaluru headquartered space agency said in a statement....
  • Pak Army chief Gen Bajwa gets three-year extension:-Pakistan Army chief General Qamar Javed Bajwa's term has been extended for another three years by Prime Minister Imran Khan in view of the "regional security environment", an official announcement said on Monday....

Milky Way may have 100 mln life-supporting planets

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WASHINGTON (PTI): Our Milky Way galaxy may house 100 million other planets that could support complex life, according to a new study.

Researchers have developed a new computation method to examine data from planets orbiting other stars in the Universe which provides the first quantitative estimate of the number of worlds in our galaxy that could harbour life above the microbial level.

"This study does not indicate that complex life exists on that many planets. We're saying that there are planetary conditions that could support it. Origin of life questions are not addressed - only the conditions to support life," said researchers in the journal Challenges.

"Complex life doesn't mean intelligent life - though it doesn't rule it out or even animal life - but simply that organisms larger and more complex than microbes could exist in a number of different forms. For example, organisms that form stable food webs like those found in ecosystems on Earth," they said.

The study authors included Alberto Fairen, Cornell research associate; Louis Irwin, University of Texas at El Paso (lead author); Abel Mendez, University of Puerto Rico at Arecibo; and Dirk Schulze-Makuch, Washington State University.

They surveyed more than 1,000 planets and used a formula that considers planet density, temperature, substrate (liquid, solid or gas), chemistry, distance from its central star and age. From this information, they developed and computed the Biological Complexity Index (BCI).

The BCI calculation found that 1 to 2 per cent of the planets showed a BCI rating higher than Europa, a moon of Jupiter thought to have a subsurface global ocean that may harbour forms of life.

With about 10 billion stars in the Milky Way galaxy, the BCI yields 100 million plausible planets, according to Cornell Chronicle.

Despite the large number of planets that could harbour complex life, the Milky Way is so vast that planets with high BCI values are very far apart, according to the scientists.

One of the closest and most promising extrasolar systems, called Gliese 581, has two planets with the apparent, possible capacity to host complex biospheres. The distance from Earth to Gliese 581 is about 20 light years.

"It seems highly unlikely that we are alone. We are likely so far away from life at our level of complexity that a meeting with such alien forms might be improbable for the foreseeable future," researchers said.

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Milky Way  Galaxy  Star  Earth  Planet  Universe  
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Chandrayaan-2 leaves earth's orbit, moving towards moon

India's second moon mission 'Chandrayaan-2' left the earth's orbit early on Wednesday, 23 days after being launched, and is moving towards the moon following the successful completion of a crucial manoeuvre by the Indian Space Research Organisation (ISRO). The Chandrayaan-2 spacecraft is expected to reach the moon's orbit on August 20 and land on lunar surface on September 7.

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