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.

From the 5th of November 2019 to the 8th, India saw one of its extravagant science events, the India International Science Festival, organised in Kolkata. The event was organised by the Ministry of Science & Technology and Earth Sciences, Government of India, in association with Vijnana Bharati (VIBHA) and hosted many conferences, conclaves and exhibitions aimed at anyone enthusiastic about science. Although this was the fifth edition of the science festival, it was the first time a dedicated Science and Technology Media Conclave was held as a part of IISF—a move that had many science communicators, writers and journalists enthused. It was spread over two days, the 6th and 7th of November, at the legendary Bose Institute.

An Indian scientific conference pressed for progress towards gender equity in science. The recommendations, which emerged from the discussions, have been forwarded to the Department of Science, Government of India.

Every year, the 5th of June is observed as the World Environment Day to “encourage worldwide awareness and action to protect our environment”. For 2019, the theme is ‘Air Pollution’, and the host country is China. On this occasion, Research Matters caught up with three leading scientists from the country that are actively pursuing research on different aspects of air pollution. The three researchers, Prof. A R Ravishankara, Prof. S K Satheesh and Prof. Navakanta Bhat shared their work and thoughts on the ‘burning’ problem of air pollution.

Nearly a century ago, Edwin Hubble, an American Astronomer, made the surprising observation that galaxies are moving apart, and that galaxies farther away from us are moving faster than nearby galaxies. With this, he showed us that the Universe is expanding. Towards the end of the last century, scientists discovered something even more surprising. When they more carefully studied how fast nearer and farther galaxies are moving away from us, they found that the Universe is not just expanding, but that the rate of expansion is increasing.

Researchers from the Indian Institute of Technology, Bombay show us how basic research is helping India inch closer to the dream of hypersonic travel.

Indian-born Nobel Laureate Venkatraman Ramakrishnan had once called the Indian Science Congress a “circus”. There aren’t many grounds to dispute the label following the most recent events.

The new year is here and we are still revelling in the spirits of 2018! One of our significant initiatives of 2018 was communicating science in regional languages so that the compelling science stories reach far and wide, breaking language barriers. After our debut with Kannada, we scored big with Hindi, Marathi and Assamese. The year 2019 holds more promise and we are all excited about it! Here we present a selected list of stories that were our top ‘local flavours’.

As we bid adieu to 2018 and welcome 2019, here is a snapshot of India’s year in science. From remarkable satellite launches, scientific breakthroughs and a cocktail of controversies, the year that went by was eventful for various reasons. Here is an attempt to travel down the memory line, reflecting on what we saw and what we could learn. While this is not an extensive list and in no way ranked, it is an attempt to highlight India’s year in science.

The year 2018 was marked by exciting discoveries and inventions in the field of medical sciences, life sciences, archeology, physical sciences, and planetary sciences. While some are headline-hitting, most are crucial in cementing our understanding of various tenets in these areas. As we come close to bidding goodbye to 2018, here is a sneak-peek into the trendsetters in science in this year, in no particular order.