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Science & Technology » Astronomy and Space Sciences Share

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).


Dengue epidemic should be declared as 'Health disaster" in TN : DMK

Chennai, Oct 20 (UNI) The Opposition DMK in Tamil Nadu today demanded that the outbreak of dengue epidemic in the state, which has claimed nearly 40 lives, should be declared as a 'Health disaster'.


Panacea Biotec receives Manufacturing Authorisation for 22 medicinal products

Mumbai, Oct 17 (UNI)Panacea Biotec a leading biotechnology company said that it has received the Certificate of GMP Compliance from State Service of Ukraine on Medicines and Drugs Control with Manufacturing Authorization for 22 medicinal products, including 4 oncology products for a period valid till June 24, 2020.


UN launches plan to stop transmission of bovine TB to humans

United Nations, Oct 13 (UNI) Stressing the damaging impact on poor rural communities in Africa and South-East Asia of animal tuberculosis’ (bovine TB) transmission to humans, United Nations health experts have launched the first-ever roadmap to combat the so-called zoonotic TB.


World will have more obese children and adolescents than underweight by 2022: WHO

Kolkata, Oct 12 (UNI) The number of obese children and adolescents (aged five to 19 years) worldwide has risen tenfold in the past four decades.


Int'l breast cancer conference stresses on need for early diagnosis, awareness

New Delhi, Oct 7 (UNI) To promote awareness about breast cancer which is becoming the common cancer among women in the country, an international conference was inaugurated on Saturday.

Solar eclipse 2017: North America will witness total solar eclipse

Solar eclipse 2017: North America will witness total solar eclipse

New York, Aug 21 (UNI) Today, all of North America will witness a total solar eclipse for the first time in 99 years, where the Moon will pass in front of the Sun, casting darkness across swathes of the Earth's surface - with up to 14 states shrouded in complete blackout.

Nano-particle fertilizer could lead to new 'green revolution'

Nano-particle fertilizer could lead to new 'green revolution'

New Delhi, Jan 26 (UNI) Sri Lankan scientists report having developed a simple way to make a benign, more efficient fertilizer – described as nano-particle fertilizer - that could contribute to a second food revolution across the globe.

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.