While looking forward to 2020, the editorial team at Research Matters looks back on some of the interesting stories that we published during 2019. There were many interesting ones ranging from the first photograph of a black hole to air pollution in Delhi to using vibrations for painless injections. Here is a list to highlight India's year in science during 2019. This is in no way ranked and the order is just incidental.

2019 was an exciting year for science as ever. We have collated the top ten stories that was popular on Research Matters in 2019. These were the ones that garnered most views because of readers like you. We would like to thank you for patronage and look forward to your support in the years to come.

In an event today, Prof. K VijayRaghavan, Principal Scientific Adviser to the Government of India, launched a national program to foster cross-disciplinary leadership in India. Named the EChO Network, it focuses on increasing research, knowledge, and awareness of Indian ecology and the environment. It is hoped that this program would develop a national network to catalyse a new generation of Indians who can solve real-world problems in medicine, agriculture, ecology, and technology.

Graphene, a sheet-like form of carbon, has been hailed as a wonder material owing to its many promising applications in electronics, drug delivery and more. In a recent study, a team of scientists from India and the USA, led by Prof Srinivasan Raghavan and Prof Rudra Pratap from the Indian Institute of Science (IISc), Bengaluru, has paved the way for new applications of graphene by intentionally varying the defects formed during its production.

The Centre for Human Genetics, Bengaluru, is hosting the second edition of the Indo-Swiss Meeting Meeting on Evolutionary Biology, held in India this year. The meeting is jointly organised by the Indian Society of Evolutionary Biologists, Centre for Human Genetics, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) and Swissnex India. The gathering brings together faculty and students from India and Switzerland. The three day meeting begins on the 12th of December and continues until the 14th.

Researchers from IIT Bombay, Microsoft India and Google Inc, develop a search system to extract meaningful data from live social media posts

Dr Neena Gupta, Associate Professor at the Theoretical Statistics and Mathematics Unit of the Indian Statistical Institute (ISI), Kolkata, has been awarded the Shanti Swarup Bhatnagar Prize 2019, in the field of Mathematical Sciences. This prize, one of the most prestigious awards in the country for research in Science, honours scientists for significant and cumulative contribution to their area of research. Dr Gupta, the youngest person in Mathematical Sciences to receive this award till date, has been recognised for her contributions to affine algebraic geometry, especially in proposing a solution to the Zariski Cancellation Problem.

Since 2012, six bridges have collapsed in Mumbai, killing 28 people and injuring hundreds. Often, news of flyovers and pedestrian bridges tumbling down have made it to the headlines across the country. Although durable materials like steel and concrete are used in today’s structures, poor quality of construction and lack of maintenance are often blamed for such catastrophes. Contrast this with the rock-solid centuries-old root bridges found in Meghalaya—many as old as 250 years and still growing strong—built without modern tools or design. Could the structure of these bridges unravel architectural clues for urban construction? In a recent study, researchers from Germany and the USA have tried to understand the morphology and structure of these root bridges, built out of the aerial roots of strangler figs, and that have endured floods, earthquakes, landslides and fires.

Our genetic material is a big molecule of DNA or deoxyribonucleic acid, whose structure is a double-stranded wound-up helix. It contains specific instructions that run a living cell, and these instructions are written on the strands. When cells divide, the DNA replicates too. In this process, the contents of the strands are read and copied carefully by unwinding the strands. But that's not as simple!

Banana, a nutritionally-rich, delicious fruit, is a widely-cultivated crop across the world and is a staple diet of people living in parts of Africa, Asia and Latin America. Due to pests and diseases, only 13% of the global production is traded, and often, farmers in India experience severe loss due to fusarium wilt or Panama disease. A novel innovation now aims to change the fortunes of banana growers by helping them detect diseases and pests with their smartphone. In a recent study, researchers from the USA, Democratic Republic of Congo, Uganda, Ethiopia and India have developed a banana pest detection app powered by artificial intelligence (AI).