Locust swarms can vary from less than one square kilometre to several hundred square kilometres. There can be at least 40 million and sometimes as many as 80 million locust adults in each square kilometre of swarm. Here's everything you need to know about the latest threat to India from the skies.

Parts of northern and western India reeled under scorching heat with temperatures hovering near the 50 degree-mark in Rajasthan, while the India Meteorological Department said no immediate respite is likely from the ongoing heatwave conditions.

These captivating photos snapped by photographers across the globe amid the coronavirus pandemic showcase how different nations have experienced a life under lockdown. In total, 15,697 photos have been submitted to the contest. The power is now in the global community's hands to cast their votes and decide which photo should win #StayHome. The most-voted photo will be revealed through the Agora app on May 27 and will win the top prize of $1,000. Octavi Royo, CEO and co-founder of the app Agora, which is running the competiton, said the photos gave 'a point of view on the confinement and to share a message of hope to humanity through their photograph'. Take a look at some of the best entries here.

The deadly coronavirus has forced us to adopt new ways of life.

Images of playful lion cubs and a confused seal are guaranteed to raise a smile even with the world observing coronavirus lockdown restrictions.

Life will hardly remain the same when we get to the other side of the Covid-19 pandemic. Economists and social scientists are predicting lasting changes in the way we live, work and eat. Already many eateries around the world are adapating to the virus in order to facilitate sales. Here's how dining out will look during the coronavirus pandemic.

The robots are here!! A cylindrical robot rolls into a treatment room to allow healthcare workers to remotely take temperatures and measure blood pressure and oxygen saturation from patients hooked up to a ventilator. Another robot that looks like a pair of large fluorescent lights rotated vertically travels throughout a hospital disinfecting with ultraviolet light. These are just a few of the robots which are being used during the COVID-19 pandemic, from health care in and out of hospitals, automation of testing, supporting public safety and public works, to continuing daily work and life. Here's a look at how Artificial Intelligence is being used in this war against COVID-19.

These images are the emotional booster that everybody needs in these difficult times! Free-to-use photography app Agora invited its userbase to participate in the #Spring2020 photo competition with their best shots of the season that breathes new life into the world. Agora's latest contest challenged photographers from all over the world to show what spring looks like in their corner of the planet. In total, 14,596 photographers participated in the #Spring2020 contest.

On Thursday in Visakhapatnam, hundreds of villagers, most of them children suffered the consequences of the vapour leak like irritation in eyes, breathlessness, nausea and rashes, and over 100 people were admitted to government and private hospitals. Several police personnel, who came for the rescue operation, also suffered symptoms like breathlessness, irritation in eyes and fell unconscious.

Italy, Spain, Portugal and India are among the countries easing coronavirus restrictions. Social distancing, mask wearing are the new norms as these countries continue to battle the virus pandemic, but are venturing out of their homes after extended periods of staying at home.

Here's a presentation of some of the best photos from around the world in the month gone by.

Several activities like fly-pasts, flashing warship lights and other displays by the Indian army bands were included in Sunday's spectacular show across the country.

The Centre has announced an extension for two more weeks in the nationwide lockdown. However, several relaxations will be allowed as per zones.

Love is in the air this spring, even with the coronavirus pandemic. Countless weddings have been postponed, but people are still getting married; although with adjustments to accommodate social distancing and other restrictions. Here are some ways couples are exchanging their wedding vows.

In these times, the sight of a public gathering of hundreds of people mostly without face masks is alarming. But that is exactly what is happening across the United States, as groups of Americans are taking to the streets in protest of lockdown orders aimed at limiting the spread of Covid-19. Those taking to the streets say that the stringent measures restricting movement and businesses are unnecessarily hurting citizens.

The pictures of his 'corona auto' went viral and Twitter users started sending in their comments calling the initiative, 'Auto-immune', 'good work', and 'innovative', while some others questioned where he would take his auto amidst the ongoing lockdown.

The shifts are long and the scenes are heartbreaking inside a Maryland hospital where nurses and doctors have been treating coronavirus patients for weeks, unable to let family inside to visit loved ones on their death beds. Some of the hospital staff share their toughest moments to show just how heartbreaking this pandemic has been.

In shabby backyards and dusty barns, in deserted fields and thick forests, Dieter Klein roams strange and isolated places to find once gleaming vehicles left to rust and ruin. From a dented Porsche to a faded Cadillac, a battered VW Beetle to a whole fleet of abandoned military jeeps, Klein's subjects creak with bygone glamour and might. As moss and gnarled branches transform motors into eerie artifacts, Klein's award-winning automobile photography is not only a tribute to classic cars, but also to the transformative power of nature and the enduring intrigue of people and incidents unknown. The mesmerising results appear in stunning new coffee table book Lost Wheels - The Nostalgic Beauty of Abandoned Cars, which is out next month. Scroll down to see some of the wonderful pieces.

Less than six months ago, Delhi was gasping for breath. Authorities said air quality had reached "unbearable levels". Schools were shut, flights were diverted, and people were asked to wear masks, avoid polluted areas and keep doors and windows closed. But during the lockdown that began on Mar 22, the concentration of poisonous PM2.5 particles in a cubic metre of air averaged at 44.18, according to a Reuters analysis of government data, indicating a rare "good" rating, the safest level on the scale.

In homes that are cramped, stuffy and increasingly low on food, residents of one of Asia's largest slum are struggling under India's nationwide lockdown.

Closures, travel restrictions, and self-isolation measures due to the coronavirus have cleared public squares, roads, and travel destinations across the globe. Photographers have been capturing the eerie stillness of these public spaces, recently emptied of the crowds they were built for.

Behold the breathtaking winning and shortlisted images from one of the world's most prestigious photography contests. The amazing shots are from the open competition of the Sony World Photography Awards 2020, which received 193,000 entries from photographers in over 200 territories. Scroll down and feast your eyes on our pick of the shortlisted and category-winning entries.

The kiosks, modelled after those used in South Korea, have built-in gloves which can be used by health workers as protective shield while collecting samples of suspected patients.

Rediff.com brings you some of the memes to cheer you up during this trying times.

Here are some scenes from inside Italy's intensive care units, where medical staff are treating the most severe cases of COVID-19

The prime minister is likely to talk about its possible extension.

Unprecedented scenes of empty churches emerged from Italy and other countries of the world, as religious leaders found creative ways to address parishioners marking the holiday weekend from the confines of their homes.

As you are stuck at home owing to the coronavirus outbreak, here are eight images that will bring a smile on your face -- even if it's just for a while!

Looking to catch a break from all the events surrounding coronavirus, then here's some amazing images from the pink supermoon that occurred on Tuesday night, enthralling all!

As countries around the world are in lockdown to prevent the spread of the coronavirus, street artists everywhere are responding, bringing a dose of colour -- and urgent messaging -- to a weary public.

How informed are you about the coronavirus outbreak? How many of these 10 questions can you get right?

When humanity's away, the animals will play. With much of the world driven indoors to quarantine during the coronavirus pandemic lockdown, some species not often seen -- or, at least, rarely in such large numbers, and certainly not against such empty backdrops -- are exploring cities across the globe. We must sadly report that though there have been many circulating on social media, many of these optimistic posts have turned out to be fake -- there were no dolphins in Venice's celebrated canals, or drunken elephants ambling through China's Yunnan province. However, there are some other instances where animals have, in fact, come out to explore city streets.

Dr Kersi Chavda will be on Rediff Chat on Friday, April 3, 2020, at 2 pm IST to answer your questions on any mental health issues you may be facing during the lockdown.

As the world struggles with the deadly coronavirus, there are some who are dealing with the pandemic in their own unique way. Here are 12 images that show how.

Prime Minister Narendra Modi shared 3D animated videos of him performing yoga.

Fighting the coronavirus pandemic is hard, in fact it seems impossible. Doctors, nurses, carers and paramedics around the world are facing an unprecedented workload in overstretched health facilities, and with no end in sight. They are working in stressful and frightening work environments, not just because the virus is little understood, but because in most settings they are under-protected, overworked and themselves vulnerable to infection. The risk to doctors, nurses and others on the front lines has become plain: Italy has seen at least 18 doctors with coronavirus die. Spain reported that more than 3,900 health care workers have become infected. In dire times such as these, people are trying their best to show their appreciation to the frontline workers. Here are some images -- from clapping for them to singing for them.. A 'thank you' in any way goes a long way around.

Join infectious disease specialist Dr Trupti Gilada on Rediff Chat and have all your queries on coronavirus answered.

With a nationwide lockdown in place, it may have become harder than usual for people, especially for the migrant daily wage earners and the homless. The government has assured people that supply of essential items will continue unabated. But while governments across the country are working hard to provide food to people, there are good samaritans who are helping out fellow citizens. From providing food to sanitizers and masks, these people are nothing short of a godsend.

The nation is on Day 2 of the 21-day lockdown to curb the spread of coronavirus. People buying essential supplies maintaining social distancing is now become a feature across the country.

Sitharaman is expected to announce an economic package to address the distress situation over the 21-day lockdown. He had addressed the nation on efforts to combat the virus on March 19. In his last address on the virus outbreak, Modi had called for "resolve and restraint" to fight the disease.