Page 53 - April 2021
P. 53

     INTERNATIONAL SCIENCE ROUNDUP
 Mars may be hiding ‘missing’ water underground
Huge amount of ancient water may have been trapped beneath the surface of Mars, according to a NASA-funded study which challenges the current the- ory that the Red Planet’s water escaped
Martian landscape
into space. The new study shows that a significant portion of water on Mars — between 30 and 99 percent — is trapped within minerals in the planet’s crust. Evidence found on the surface of Mars suggests that abundant water flowed across Mars billions of years ago, forming pools, lakes, and deep oceans. But where did all that water go has been a matter of investigation.
Chinese astronauts to stay on Moon for long
China has mapped out a series of un- crewed missions this decade, includ- ing the setting up of a robotic base to explore the moon’s south polar region, ahead of manned landings. And once China establishes a lunar research station, its astronauts will stay on
the moon for long periods of time to conduct scientific studies.
Scientists unearth oldest meteor
Scientists believe they have identified a meteorite formed in the first million
The oldest meteor began its journey 4.5 billion years ago
years of our solar system, making it the oldest known meteor of volcanic origin. The space rock, which began its journey some 4.5 billion years ago, has already proved an ‘exceptional’ witness to the building blocks of the planets. Known as Erg Chech 002, it was discovered in May 2020 by meteor hunters in the Algerian Sahara desert.
Longer summers in Northern Hemisphere by 2100
Amid growing concerns over climate change, scientists have now warned of hotter summers and warmer winters
in future. In addition to this, a recent study indicates that summers in the Northern Hemisphere could last for six months by 2100. Global warming is the reason behind this seasonal shift. The length of a single season in re- gional scales has changed under global warming, but a hemispherical-scale response of the four seasons in the past and future remains unknown.
COVID-19 circulated undetected months before first cases According to a research, the novel coronavirus was likely circulating undetected for at most two months before the first human cases of CO- VID-19 were described in Wuhan, China, in late-December 2019. The virus quickly spread beyond China and by April 2020, COVID-19 was declared a pandemic with more than 100 countries reporting cases.
Longest jet of particles coming from black hole discovered
Using the National Aeronautics and Space Administration’s (NASA) Chandra Observatory, astronomers have discovered never seen before, a long jet of particles coming from a supermassive black hole in the early universe. The gigantic jet of particles originated from a galaxy 12.7 billion light years away from our planet. The light detected from this jet was emitted at a very early age of the universe when it was 0.98 billion years old, almost one-tenth of its age now.
Lightning may have sparked life
on Earth
A new research has offered an alter- native explanation as to how living organisms were born. According to
the study, lightning strikes may have supplied primordial Earth with enough phosphorus to support the emergence of life. Phosphorus is a vital building block of life as we know it, forming basic cell structures and the double helix shape of DNA and RNA.
Asia’s longest-missing bird seen in Indonesia
Asia’s longest-missing bird, a black- browed babbler
  has just come
out of hiding.
The bird has
been found in
Indonesia, for
the first time
in 170 years.
The discovery
of the muted
black, gray and chestnut-brown
bird solves what 170 years an authoritative
birding guide describes as ‘one of the great enigmas of Indonesian ornithology.’
Early Magma oceans detected in 3.7 billion-year-old Greenland rocks These primeval rocks, containing clues that might explain Earth’s habitability, were assumed to have been lost to the ravages of plate tectonics. But now, the chemical remnants of Earth’s magma oceans in 3.7 billion-year-old rocks from southern Greenland have been discovered, revealing a tantalising snapshot of a time when the Earth was almost entirely molten.
This bird has been spotted in Indonesia for the first time in
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