<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>Syllabus Section</span></span></span></b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>: Science and Technology</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>Context</span></span></span></b></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>The European Space Agency (ESA) has formally adopted Ariel, the explorer that will study the nature, formation and evolution of exoplanets.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span><img alt=”” src=”https://i.filecdn.in/476edenias/freesnippingtool-com_capture_20201116130015-1605512235249.png” style=”float:right” /></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>What is the Ariel Space Mission?</span></span></span></b></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>• Ariel (Atmospheric Remote-sensing Infrared Exoplanet Large-survey), which scientists are planning to launch in 2029.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>• It will perform a large-scale survey of over a thousand exoplanets over a period of four years.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>• It will help into compiling a list of exoplanets compositions and properties thereby providing insights about how planetary systems form and evolve.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>• Ariel is the first mission of its kind dedicated to measuring the chemical composition and thermal structures of hundreds of exoplanets</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>• A large number of exoplanets have already been discovered, there is no clear link between the presence, size or orbital parameters of the planet and the nature of their parent stars. Therefore, a large-scale survey that Ariel will perform is required to know more about exoplanets and exoplanetary systems.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”> </p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>What are Exoplanets?</span></span></span></b></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>• Planets that lie outside of the Solar System and orbit around stars other than the Sun are called exoplanets or extrasolar planets. Exoplanets are not easy to detect since they are much less brighter than the stars they orbit and hence it is difficult to see them directly using telescopes.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>SOURCE – INDIAN EXPRESS</span></span></span></b></span></span></span></p>