<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"”>Section of the syllabus – science and tech</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”><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 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"”>Methods to track 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"”>• Tracking the dimming of a star that happens when a planet passes in front of it. NASA’s Kepler Space telescope uses this method to spot thousands of planets.</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"”>• Gravitational lensing </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"”>• Wobbling method</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"”>What is ARIEL 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, 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"”>• Aim – 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"”>• Need– Alarge-scale survey that Ariel will perform is required to know more about exoplanets and explanatory systems.</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 will help to answer one of the key questions of ESA’s Cosmic Vision Plan, which is, “What are the conditions for planet formation and the emergence of life?</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>