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Chandrayan mission discovers new group of suprathermal protons

Chandrayan mission discovers new group of suprathermal protons

By CNR Vijaykumar Bengaluru, Jun 28 (UNI) A new group of suprathermal protons has been discovered near the Moon by the Sub-keV Atom Reflecting Analyzer (SARA) experiment on Chandrayaan-1 - the first Indian lunar mission.
These protons are found to exist on the sunlit side as well as the night side of the Moon.
These suprathermal protons are not associated with any of the known sources or processes and a detailed analysis showed that the source is located at higher altitude (more than 500 km) above the dayside lunar surface and their density and velocity distribution reveals that they are neither from interplanetary nor interstellar medium and its origin is still an enigma.
The discovery indicated that the knowledge about Moon was still limited and called for further exploration.
'These observations are also important to understand the environment of any non-magnetised body without atmosphere in our solar system as well as Exo-planetary systems' ISRO said in its website.
The SARA experiment on the Chandrayaan-1 mission was an international collaborative research experiment between Space Physics Laboratory (SPL), Vikram Sarabhai Space Centre (VSSC) of Indian Space Research Organization (ISRO), and Swedish Institute of Space Physics (IRF), Kiruna, Sweden, with participation from Japan Aerospace Exploration Agency (JAXA), and University of Bern (UBe) Switzerland.
SARA consisted of an ion-mass analyzer, namely SWIM (Solar WInd Monitor), to measure ions in the energy range of 10 to 15000 electron volts and an energetic neutral atom sensor namely CENA (Chandrayaan-1 Energetic Neutral Analyzer) to detect low energy neutral atoms (10 to 3000 electron volts).


Yemen cholera epidemic slowing after infecting 400,000

By Tom Miles

GENEVA, July 25 (Reuters)  Yemen's cholera outbreak is set to hit 400,000 cases on Tuesday but there are signs the three-month-old epidemic is slowing, according to World Health Organization data analysed by Reuters.


IMA organises 'Kidney Update 2017'

Panaji, Jul 24 (UNI) State-level CME Kidney Update 2017 event, organised by Indian Medical Association (IMA) Goa, saw experts from all over India and Spain sharing knowledge with Goan doctors about how to manage better patients with kidney ailments.


HIV and cancer teams double up to seek out new disease killers

By Kate Kelland, Health and Science Correspondent

LONDON, Jul 22 (Reuters) HIV experts at an international conference starting today are keenly courting colleagues in oncology to explore whether advances in harnessing the immune system against cancer can help the search for a cure for AIDS.


Scales tip in AIDS fight as death rates decline, treatment rates rise

By Kate Kelland, Health and Science Correspondent LONDON, Jul 20 (Reuters) The scales have tipped in the fight against AIDS, with more than half of people infected with HIV now getting treatment and AIDS-related deaths almost halving since 2005, the United Nations said today.


Republican Senator John McCain diagnosed with brain tumor

Undated, Jul 20 (Reuters) US Republican Senator John McCain has been diagnosed with a brain tumor following surgery to remove a blood clot from above his left eye.

Broken pebbles offer clues to Palaeolithic funeral rituals

Broken pebbles offer clues to Palaeolithic funeral rituals

New Delhi, Feb 9 (UNI) Humans may have ritualistically "killed" objects to remove their symbolic power, some 5,000 years earlier than previously thought, a new international study of marine pebble tools from an Upper Palaeolithic burial site in Italy suggests.