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Daily Current Affairs : 29-Jan-2020

Major Topics Covered :

  1. OLDEST SOLID MATERIAL ON EARTH DISCOVERED INSIDE METEORITE IN AUSTRALIA.

  2. RAMSAR SITES

  3. AFRICAN CHEETAH - TO SUITABLE HABITAT IN INDIA

  4. (HCFC)-141 B

  5. GOTT- PROJECT

  6. NASA’s SPITZER SPACE TELESCOPE

  7. GIANT STRAIGHT-TUSKED ELEPHANT

  8. SIS-DP

  9. POLYCRACK- FIRST WASTE TO ENERGY PLANT IN BHUBANESWAR

  10. RUKUNA RATHA YATRA


OLDEST SOLID MATERIAL ON EARTH DISCOVERED INSIDE METEORITE IN AUSTRALIA.

Part of GS- 3 S&T


Why in news?

  • Scientists have discovered the oldest solid material ever found on the Earth, in the form of stardust trapped inside a meteorite that crashed into Australia 50 years ago and predates the formation of our solar system.


Highlights:

  • This stardust provides evidence for a ‘baby boom’ of new stars that formed 7 billion years ago, contrary to the theory that star formation happens at a steady, constant rate, according to the study published in the journal PNAS.

  • “These are the oldest solid materials ever found, and they tell us about how stars formed in our galaxy,” said Philipp Heck, an associate professor at the University of Chicago in the US.

  • Presolar grains are interstellar solid matter in the form of tiny solid grains that originated at a time before the Sun was formed.

  • Presolar stardust grains formed within out flowing and cooling gases from earlier presolar stars.

  • These bits of stardust became trapped in meteorites where they remained unchanged for billions of years, making them capsules of the cosmic time before the solar system.

  • However, presolar grains are very tiny and rare, found only in about five per cent of meteorites that have fallen to the Earth.

  • Since presolar grains are formed when a star dies, they can tell us about the history of stars.


Source : Indian Express



RAMSAR SITES

Part of GS- 3 Enviroment


Why in news?

  • India has added 10 more wetlands to sites protected by the Ramsar Convention, Union Environment Minister Prakash Javadekar announced on 28th January, 2020.


Highlights:

The 10 new ones are

  • Nandur Madhameshwar, a first for Maharashtra;

  • Keshopur-Miani, Beas Conservation Reserve and Nangal in Punjab; and

  • Nawabganj, Parvati Agra, Saman, Samaspur, Sandi and Sarsai Nawar in Uttar Pradesh.

  • The other Ramsar sites are in Rajasthan, Kerala, Odisha, Madhya Pradesh, Himachal Pradesh, Assam, West Bengal, Jammu and Kashmir, Andhra Pradesh, Manipur, Gujarat, Tamil Nadu and Tripura.


About RAMSAR SITES:

  • The Convention, signed in 1971 in the Iranian city of Ramsar, is one of the oldest inter-governmental accords for preserving the ecological character of wetlands.

  • Also known as the Convention on Wetlands, it aims to develop a global network of wetlands for conservation of biological diversity and for sustaining human life.


Source: The Hindu



AFRICAN CHEETAH - TO SUITABLE HABITAT IN INDIA

Part of GS- 3 Environment


Why in news?

  • The Supreme Court 28th January, 2020, allowed the Centre to introduce the African cheetah to suitable habitat in India.


Highlights:

  • The apex Court's decision followed a petition filed by National Tiger Conservation Authority (NTCA) seeking permission for the introduction of the African cheetah from Namibia as rare Indian cheetah is almost extinct in the country.

  • The apex court will monitor the project and the committee will submit its report before it every four months.


Cheetah reintroduction programme in India

  • The Wildlife Institute of India at Dehradun had prepared a Rs. 260-crore cheetah re-introduction project six years ago.

  • It was estimated that an amount of Rs. 25 crore to Rs. 30 crore would be needed to build an enclosure in an area of 150 sq km for the cheetahs in Nauradehi in Madhya Pradesh.

  • The proposal was to put the felines in the enclosure with huge boundary walls before being released in the wild.

  • Nauradehi was found to be the most suitable area for the cheetahs as its forests are not very dense to restrict the fast movement of the spotted cat.

About Cheetah:

  • Habitat: It inhabits a variety of mostly arid habitats like dry forests, scrub forests, and savannahs.

  • Conversation Status:

  • IUCN: Endangered and

  • CITES : Appendix I

  • COMMON NAME: Cheetah

  • SCIENTIFIC NAME: Acinonyx jubatus

  • TYPE: Mammals