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DTSTART;TZID=Asia/Dhaka:20260404T180000
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SUMMARY:Astronomy Night 13: Echoes of Other Worlds
DESCRIPTION:Join CASSA for a landmark evening as we celebrate our 13th Astronomy Night at Independent University\, Bangladesh. This edition transcends traditional stargazing by diving deep into the most profound question in science: are we alone? Titled “Echoes of Other Worlds\,” the event bridges the gap between empirical discovery and human imagination: \n \nEchoes of Other Worlds: From Apollo & Artemis to PLATO \nBetween 1969 and 1972\, twelve astronauts walked on the Moon during NASA’s Apollo programme\, collecting over 300 kg of lunar samples and deploying instruments that transformed planetary science. After a half-century hiatus in human lunar exploration\, the Artemis programme is now carrying astronauts back toward the Moon. Artemis II\, launched on 1 April 2026\, is sending four astronauts on a free-return trajectory around the Moon aboard the Orion spacecraft — the first crewed mission beyond low Earth orbit since Apollo 17. This talk traces the full arc of lunar exploration\, from Apollo through the robotic missions of China and India to the ongoing Artemis campaign. \nBut the Moon is not our only destination. The discovery of planets orbiting other stars has opened a new frontier. The transit method — detecting the tiny dimming of starlight as a planet crosses its host star — and the radial velocity method — measuring the subtle gravitational wobble a planet induces in its star — have together revealed over five thousand confirmed exoplanets. Missions like Kepler and TESS have shown that planets are ubiquitous in our galaxy\, including rocky worlds in habitable zones. This talk provides a brief overview of what we have found so far and the detection techniques that made it possible. \nThe European Space Agency’s PLATO mission\, scheduled for launch in 2027\, represents the next leap. Designed to detect and characterise Earth-like planets around Sun-like stars\, PLATO will combine twenty-six cameras to monitor hundreds of thousands of bright stars with unprecedented photometric precision. Crucially\, it will also use asteroseismology — the study of stellar oscillations — to determine the ages\, masses\, and radii of host stars\, enabling precise characterisation of their planetary systems. From the Moon beneath our feet to the worlds orbiting distant suns\, the journey from Apollo and Artemis to PLATO traces humanity’s expanding horizon of exploration. \n– – – – – – – – – –  – \nFollowing the talk\, we celebrate the intersection of science and art with the “Durer Golpo” award ceremony. This competition challenged writers to envision cultures on newly discovered exoplanets\, proving that while science provides the data\, storytelling provides the soul. It is a unique moment where rigorous astrophysics meets the creative pulse. \nThe finale of the night offers a dual-pathway into the cosmos through our signature stargazing session. Experience the future of citizen astronomy with the Unistellar Equinox 1\, a robotic telescope that broadcasts images of deep-sky nebulae and galaxies directly to digital screens. Simultaneously\, return to the roots of the craft with our Skywatcher 8-inch manual telescope. This powerhouse allows for optical planetary observations through a traditional eyepiece\, offering a “real-light” connection to our celestial neighbors. Whether you prefer the precision of modern sensors or the raw clarity of glass optics\, Astronomy Night 13 promises an inspiring window into the universe. \n\n\n\nTime\nSegment\nDetails\n\n\n\n\n6:00 PM – 6:40 PM\nPublic Talk\n“Echoes of Other Worlds: Astrobiology and Life in the Universe”  \nby Dr Khan Asad\, astronomer and assistant professor\n\n\n6:40 PM – 7:00 PM\nAward Ceremony\nDurer Golpo: Prize giving for the best short stories on astrobiology.\n\n\n7:00 PM – 8:00 PM\nStargazing\nDeep-Sky: Unistellar Equinox 1 (Robotic observation via digital screens). \nPlanetary: Skywatcher 8” Manual (Optical observation via eyepiece)\n\n\n\n 
URL:https://cassa.site/event/an13/
LOCATION:Center for Astronomy\, Space Science and Astrophysics\, IUB\, Plot 16\, Aftab Uddin Ahmed Rd\, Block B\, Bashundhara RA\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Astronomy Night
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DTSTART;TZID=UTC:20260418T170000
DTEND;TZID=UTC:20260418T210000
DTSTAMP:20260514T233554
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SUMMARY:Astronomy Night 14: How Fast is the Universe Expanding?
DESCRIPTION:Astronomy Night 14 continues CASSA’s signature two-part format: a public talk by an astronomer and astrophysicist\, followed by a dual stargazing session — combining digital and optical observation for a complete journey from lecture hall to the night sky. \n\nThe Public Talk \nHow fast is the Universe expanding? For decades\, astronomers have sought to answer this deceptively simple question by measuring the Hubble Constant — yet depending on the method used\, they arrive at two frustratingly conflicting answers. Looking at the faint afterglow of the Big Bang suggests one expansion rate\, while measuring distances to pulsating stars and supernovae in our local cosmic neighborhood yields a notably faster one. As precision observatories like the Hubble and James Webb Space Telescopes rule out measurement error\, this “Hubble Tension” has grown into a genuine crisis at the heart of modern cosmology. Join us for a journey into how we measure the vastness of space — and whether our standard model of the Universe is due for a profound revision. \nThe talk will be delivered at the IUB Auditorium by Dr. Syed Ashraf Uddin\, an astronomer and astrophysicist of IUB whose work sits at the forefront of this very debate. Dr. Uddin is a co-author of a landmark study published in April 2026\, in which a global collaboration of nearly 40 experts replaced the traditional cosmic distance ladder with a Local Distance Network — linking independent distance indicators simultaneously to achieve an unprecedented 1% precision measurement of the Universe’s local expansion rate. The result remains in significant tension with values inferred from the early Universe\, effectively ruling out the possibility that the Hubble Tension arises from a single overlooked error\, and pointing instead toward new physics beyond the standard cosmological model. There are few people better placed to take you inside this unfolding story. \nThe talk forms part of the prize-giving ceremony of the National Round of the Bangladesh Olympiad on Astronomy and Astrophysics (BDOAA)\, hosted at IUB jointly by the Department of Physical Sciences and CASSA. The auditorium will therefore bring together some of the country’s brightest young minds from various schools and colleges. \n\nThe Stargazing Sessions \nAfter the talk\, we move to the rooftop of the IUB Main Academic Building — CASSA’s home base — for a dual stargazing experience that offers two very different ways of meeting the cosmos. \nThe digital session features the Unistellar Equinox telescopes that captures and broadcasts live images of distant galaxies directly to digital screens. This is citizen astronomy at its most accessible — no eyepiece required\, no dark adaptation\, just the deep Universe delivered in real time. \nThe optical session brings you back to the roots of observational astronomy with the Skywatcher 8-inch manual telescope. Here\, the light that left a star or nebula travels directly to your eye — unmediated\, unprocessed\, and irreplaceable. It is a reminder that for all our technology\, the oldest connection between a human being and the night sky remains the most intimate. \nBoth sessions will be conducted as part of CASSA’s Durbin public astronomy program\, with trained Durbin volunteers guiding participants through the instruments and the sky — bringing their characteristic warmth and enthusiasm to every eyepiece and every screen. \nCome for the science. Stay for the stars.
URL:https://cassa.site/event/an14/
LOCATION:Independent University\, Bangladesh\, 16 Aftabuddin Ahmed Road\, Bashundhara RA\, 1229\, Bangladesh
CATEGORIES:Astronomy Night
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BEGIN:VEVENT
DTSTART;TZID=UTC:20260421T133000
DTEND;TZID=UTC:20260421T141000
DTSTAMP:20260514T233554
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SUMMARY:Journal Talk 18: Emmet Golden-Marx et al. (2023)
DESCRIPTION:The High-redshift Clusters Occupied by Bent Radio AGN (COBRA) Survey: Investigating the Role of Environment on Bent Radio AGNs Using LOFAR. \nLink: https://doi.org/10.3847/1538-4357/acf46b \nPresenter: Farhana Ferdous (Undergraduate student\, Applied Physics & Electronics Department\, Brac University) \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-18/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
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ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
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