We still haven’t found any evidence of the
existence of alien life, because our technology is at its only beginning.
Scientists and engineers are trying to answer the frequently asked question,
Are we alone? Here are six ways scientists plan to solve this conundrum in the
recent and coming years:
Exploring
the red planet -Mars: Scientists consider that Mars was
once a place having the conditions to accommodate life. If that’s so, their
remains are probably buried deep under the ground. Robots can’t dig much
deeper, so we need astronauts to do so and to gather enough information about
if life ever existed there.
Exploring
the Jupiter's tiny moon Europa: Jupiter’s tiny moon
Europa is considered to have an ocean, bigger than anything of Earth. We’ll
need to land a robot on it to drill its icy surface. NASA has moved forward
with plans to launch its first mission to Europa in the 2020s.
Some
say we should shout: The new group called Active
SETI-Search for Extra Terrestrial Intelligence, suggests that we should send
signal in space to check for the signs of alien life. One of the group's
leaders, psychologist Douglas Vakoch, is leading a project called "Earth
Speaks" that asks everyone around the world to describe what message
they'd transmit on behalf of all humanity.
We
might just need to look: Up till now SETI institute has
been using radio dishes to listen for signs of aliens. But now SETI is
designing an instrument that could visualize the optical regime for any strange
signals from intelligent ET.
Studying
exoplanet’s atmosphere: Another reliable strategy is to study
the atmosphere of exoplanets, which are present beyond our solar system, those
exoplanets might have the potential to harbor life. The next generation of
giant telescopes will have the capability to explore the chemical composition
of the atmosphere of these exoplanets.
The
fourth Domain of life: Finding alien life beyond the
Earth might be far off. Scientists are endeavoring to study the class of
never-before discovered life here on Earth, they call it the fourth Domain. At the moment, the three known domains are
Archaea, Bacteria and Eukaryote. Each domain has a specific RNA gene structure
that discriminates it from the other groups. In 2014, a team of researchers at
the Joint Genome Institute, proposed an experiment that would search for a
fourth domain of life on Earth.
