Congratulations to Dr. Prantika Bhowmik for "PhD at-large Prize" of the International Astronomical Union

Prantika Bhowmik, a student of CESSI, IISER Kolkata who graduated last year has received the 2019 "PhD at-large Prize" of the International Astronomical Union. The prize is jointly decided by all nine subject-specific divisions of the Union and is one of the highest international recognitions for PhD research in the field of astronomy, astrophysics and space sciences.
The thesis research of Dr. Bhowmik was supervised by Prof. Dibyendu Nandi and focussed on the development of data constrained computational models for solar activity predictions.

The prize announcement is available here:

Congratulations to Dr. Prantika Bhowmik for this exceptional honour which brings global recognition to IISER Kolkata.

17 Feb Oct 2020.

Congratulations to Sanchita Pal and Lekshmi B.

Sanchita Pal and Lekshmi B, final year Ph.D. students working with Prof.Dibyendu Nandi, received the "Young Scientist Best Paper Award" and the "Asia Pacific Solar Physics Meeting Best Paper Award" respectively. These were awarded to them for their talks at the recently concluded "5th Asia Pacific Solar Physics Meeting" held from 3-7 February at IUCAA, Pune.

17 Feb Oct 2020.

Hearty congratulations to Lekhsmi B.

A science nugget written by Lekhsmi B. for the Helioseismic and Magnetic Imager Team and now hosted at their Stanford website highlights a recent work from CESSI. This research work (published in the Astrophysical Journal) has uncovered an intriguing time-delayed correlation between hemispheric asymmetries in solar meridional flow variations and the sunspot cycle. This work utilized heliosiesmic observations from the Helioseismic and Magnetic Imager instrument which is on board NASA's Solar Dynamics Observatory.
For More Information Click :

29 Oct 2019.

CESSI Prediction of South American Total Solar Eclipse 2019

03 July 2019.

Hearty congratulations to Prof. Dibyendu Nandi

Prof. Dibyendu Nandi has been conferred with the Laxminarayana & Nagalaxmi Modali Award 2018 of the Astronomical Society of India.

5 Feb 2019.

Scientists predict the Sun's activity to reveal expected environmental conditions in space

06 Dec 2018.

IDL 2018 micro-grant of USD 1000 received by Amar Deo Chandra

SPIE International Day of Light (IDL) micro-grant of USD 1000 for doing outreach activities during inaugural edition of IDL 2018 received by Amar Deo Chandra (Co-PI SPIE chapter of IISER Kolkata).
22 July 2018.

Plasma jets inside the Sun foretell unequal activity of its two hemispheres

12 July 2018.

Hearty congratulations to Dr. Dibyendu Nandi

Dr. Dibyendu Nandi of Dept. of Physical Sciences has been awarded a Swedish Wenner-Gren Foundation Guest Professorship at the Nordic Institute of Theoretical Physics (NORDITA, Stockholm)

9 July 2018.

Hearty congratulations to Rakesh Mazumder

Hearty congratulations to Rakesh Mazumder for best poster award in IAU Symposium, IAUS 340: Long-term datasets for the understanding of solar and stellar magnetic cycles. Which was held in Jaipur, India from 19-24 February 2018.

25 February 2018.

Dr. Rajesh Kumble Nayak and his student Anuradha Samajdar contributions in detection of Gravitational Waves has been listed as highlight in "Success stories" in the MHRD Webpage.

05 February 2018.

India has played a major role in LIGO research, says Nobel Laureate Kip Thorne

10 Jan 2018

Hearty congratulations to Unnati Ashar

CESSI applauds Ms Unnati Ashar, MS student of CESSI for her excellent article on "The many charms of winter" got published in The Hindu on 7th January.
Click here for details.

9 Jan 2018

Striking Gold in Cosmic Fireworks: Information for the Media and Public

17 Jan 2018

Best poster award of Athira B S

Best poster award at Contemporary Trends in Optics 2017 , IISER Kolkata - received by Athira B S

19 December 2017

2017 Nobel Prize in Physics

The 2017 Nobel Prize in Physics was awarded to Kip Thorne, Rainer Weiss and Barry Barish of the LIGO collaboration for their role in the first direct detection of gravitational waves, first predicted by Einstein a century ago, which has opened up a new window to explore exotic phenomena in the Universe. Dr. Rajesh Nayak and his graduate student Ms. Anuradha Samajdar are part of the international LIGO collaboration whose work contributed to this detection and the Nobel Prize. Studies of astrophysical gravitational waves and the development of the LIGO-India detector are some of CESSI's mandate, originally envisaged and proposed in 2010. We are happy to have played a role in this important international collaboration.

For more information click here

3 October 2017

The Great American Solar Eclipse August 21 2017

CESSI, IISER Kolkata uses a novel computational methodology to predict the 21 Aug 2017 Great American Solar Eclipse.

For more information click here

21 August 2017

Hearty congratulations to Mr. Prosenjit Lahiri

We are pleased to note that following qualification and an excellent performance in the requisite examination, CESSI System Administrator Prosenjit Lahiri is now a RedHat Certified System Administrator in Red Hat Openstack. We congratulate Prosenjit on this achievement.

Hearty congratulations to Mr. Prosenjit Lahiri.

1 August 2017

LIGO Detects Gravitational Waves for the Third Time

Dr Rajesh Nayak and Ms Anuradha Samajdar PhD student, from the Center of Excellence in Space Sciences India (CESSI), are part of the IndIGO - LSC collaboration. They were actively involved in testing the Einstein’s theory using gravitational waves in collaboration with Dr K. G. Arun (CMI-Chennai) and Dr Chandra K Mishra (IIT Madras) together with other members of LIGO collaboration.

Hearty congratulations to Dr. Nayak and Ms. Samajdar.

For more information click on the given link:-
LIGO Detects Gravitational Waves for the Third Time

4 January 2017

Hearty congratulations to Ms. Sanchita Pal

Ms. Sanchita Pal, a CESSI PhD student has received a prestigious international SCOSTEP Visiting Scholarship and an associated invitation from the NASA Goddard Space Flight Center for performing a collaborative research project on solar storms. Her expenses will be completely covered by the SCOSTEP award and NASA.

Hearty congratulations to Ms. Sanchita Pal.

30 May 2017

Hearty congratulations to Mr. Rajashik Tarafder

Mr. Rajashik Tarafder, a DPS student, who did his MS Thesis research at CESSI, has received the best paper award at a national level undergraduate physics symposium entitled “Presision 2017” which was organized by Presidency University. The basis of his award was a presentation on one of his MS research projects on “A Mathematical Model of Global Climate with Solar and Anthropogenic Forcing.”

Hearty congratulations to Mr. Rajashik Tarafder.

9 April 2017

Transient Weakening of Earth’s Magnetic Shield

A group of international scientists (including CESSI faculty named Prasad Subramanian) has observed a 'Transient Weakening of Earth’s Magnetic Shield.' This observation was conducted by recording the levels of Galactic Cosmic Ray particles using GRAPES-3 muon telescope. The study is instrumental in understanding the impact of future solar storms on our technological infrastructure.

For more information click on the given link:-

20 October 2016

NASA ISRO Heliophysics Working Group

A new ISRO-NASA Heliophysics Working Group has been established under the US-India Civil Space Joint Working Group with the charter to help define scientific, programmatic and technological goals for Indo-US cooperation in exploration of the Sun and our near-Earth space environment. We are happy to note that Dr. Dibyendu Nandi (IISER Kolkata), Dr. Dipankar Banerjee (IIA) and Dr. K. Sankarasubramanian will be contributing to this important initiative as nominated members of this Working Group.

January, 2017

Promote Science at CESSI

Graduate students at CESSI have started a new initiative called Promote Science which aims to disseminate science to the masses.

15 November 2016

Congratulations to Mayukh Panja.

Mayukh Panja, a Masters student at CESSI successfully competed his Masters Degree with a Thesis on "A Magnetofrictional Model to study the Solar Corona". He has secured a PhD position at the Max Planck Institute for Solar System Research in Gottingen, Germany. We congratulate Mayukh and wish him all the best for his PhD research.

10 October 2016

Congratulations to Soumitra Hazra.

Soumitra Hazra, a PhD student of DPS who worked at CESSI under the supervision of Dibyendu Nandi successfully defended his PhD Thesis on "Exploring the Origin and Dynamics of Solar Magnetic Fields" and has secured a Research Scientist position at the Department of Physics and Astronomy of Georgia State University (Atlanta, USA). We congratulate Soumitra and wish him all the best in his future endeavours.

18 August 2016

Rajashik Tarafder was invited to the Lindau Nobel Laureate Meeting 2016

Rajashik Tarafder, a BS-MS student was invited to the Lindau Nobel Laureate Meeting 2016 as a young scientist.This meet involved 400 young scientists from across the world interacting with 29 Nobel Laureates over a 6 day period.

His reflections on the meet:

21 July 2016

Hearty congratulations to Dr. Nayak and Ms. Samajdar.

It is a pleasure to share with you that the 2016 Gruber Foundation Cosmology Prize recognizes Ronald Drever, Kip Thorne, Rainer Weiss, and the entire Laser Interferometer Gravitational-Wave Observatory (LIGO) discovery team for the first observation of gravitational waves. As you are aware, Dr. Rajesh Kumble Nayak and Ms. Anuradha Samajdar are part of the LIGO team from IISER Kolkata. For more details, please see the following link:

4 May 2016

Detection of Gravitational Waves

CESSI and Physics personnel have been part of a global team that has finally detected astrophysical gravitational waves 100 years after their existence was predicted by Albert Einstein. Gravitational astrophysics (and the hunt for gravitational waves) is one of the research aims of CESSI and this detection opens up a new window for probing exotic objects and extreme phenomena in the Universe.

We proudly note the involvement of Dr. Rajesh Nayak and his PhD student Ms. Anuradha Samajdar in this global effort and congratulate them and the international LIGO team for this outstanding breakthrough

For further details on local contribution: click here

For information on the detection of gravitational waves and the international LIGO collaboration:

For information on gravitational waves:

For information on the LIGO-India initiative:

PHD Comics with their gig on Gravitational Waves:

The research paper on gravitational wave detection:

11 Feb 2016

The Aditya-L1 space observatory

The Aditya-L1 space observatory, India's first mission to study the Sun received official sanction of the Government of India recently. CESSI personnel (as PIs and Co-Is) are directly contributing to mission development through instrumentation and theoretical modelling support.

More information on Aditya is available at:

Science for Space Weather Conference

CESSI was the primary Indian organizer for the Science for Space Weather Workshop which was held in Goa, India from 24-29th January, 2016. A total of 104 scientists and students from 21 countries participated in this workshop which was co-sponsored by CESSI-IISER Kolkata, University of Kiel, Physical Research Laboratory, Committee on Space Research, Scientific Committee on Solar-Terrestrial Physics, NASA International Living with a Star Program and ISRO. During this workshop a special school on space weather was organized by NASA/NSFs Community Coordinated Modelling Center (CCMC) and CESSI for students. In the school 22 PhD/MS students from India and 3 students from abroad participated. The workshop and school were very successful; highlights of which were unveiling of plans for India's first solar space mission, and the emergence of a consensus document calling for international cooperation in sharing of resources amongst space agencies to support space weather data analysis and research.

More information on the workshop and school are available at:

24-29 January 2016

Mr. Rakesh Mazumder, PhD student of CESSI, was selected for the prestigious Sokendai Asian Solar Physics Winter School and attended the same in Japan from 26-28th January 2016. His trip to Japan to attend this school was completely sponsored by the organizers.

Dr. Aveek Sarkar, who worked as a Postdoctoral Research Associate and subsequently Research Scientist at CESSI for two and half years, was offered a faculty position at the Physical Research Laboratory (PRL, Ahmedabad), the premier research institute of the Department of Space. He joined PRL as a Reader on 15th December, 2015. We wish him all the best in his future endeavours.

MAST Facility Commissioned

We congratulate CESSI Affiliate and Co-I, Dr. Nandita Srivastava for her efforts in the successful commissioning of the Multi-Aperture Solar Telescope (MAST) Facility at Udaipur Solar Observatory. MAST is India's most advanced solar observatory. For further details see:

We heartily congratulate to Dr. Nandita Srivastava and Multi-Aperture Solar Telescope (MAST) team for receiving the ISRO Team award for 2015.

August, 2016

CESSI contributes to the International Space Weather Roadmap

Dr. Dibyendu Nandi, Head of CESSI contributed as the only Indian member to the international space weather roadmap study commissioned by the Committee on Space Research (COSPAR) -- the largest organization of space scientists. Dr. Nandi is Vicechair of COSPAR's Panel on Space Weather, which enables international cooperation in understanding and mitigation of space weather. The published version of the space weather road map is available at:

15 June 2015