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Good measure: The stylists came in close contact with their clients, yet did not transmit the virus to them.

How wearing masks cut coronavirus transmission to 139 clients in a salon

Both stylists and most clients were wearing masks during the entire duration of each appointment

In this photo released by China’s Xinhua News Agency, a Long March-5 rocket carrying the Tianwen-1 Mars probe lifts off from the Wenchang Space Launch Centre in southern China’s Hainan Province, on July 23, 2020.

China launches first Mars mission

Andrew Pollard, Director of the Oxford Vaccine Group and Chief Investigator on its COVID-19 trials. Photo: www.ovg.ox.ac.uk

Coronavirus | India will have to deliver vaccine on scale never seen before: Oxford scientist Andrew Pollard

Narayan Lakshman Director of the Oxford Vaccine Group Andrew Pollard shares with Narayan Lakshman deep insights into the coronavirus endgame scenarios that might now be on the table

File photo for representational purpose only.

Serum Institute has begun manufacturing Oxford coronavirus vaccine

R. Prasad Institute will seek permission to carry out a phase-3 trial in India.

Editor's Pick

A view of IIT-Madras

IIT-M researchers use artificial materials and ultrasound to detect defects in large structures

Special Correspondent Conventional bulk ultrasonic inspection is tedious and time-consuming

Wild animals in urban clusters

D. Balasubramanian

The COVID-19 effect

High grade: A ventilator has to be exactly calibrated or it can cause altered pressure changes.

Ventilators can heal but also harm

M.R. Rajagopal An evaluation is needed to assess what the patient needs

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Watch | How does a lizard lose its tail?

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How young Asian elephants learn to bend their trunks left or right

Question Corner: How far and fast do chameleon tongues move?

How wearing masks cut coronavirus transmission to 139 clients in a salon

Of mice and SARS-CoV-2

Meet the ‘tiny bug slayer’, ancient relative of dinosaurs and pterosaurs

Watch | How does a lizard lose its tail?

China launches first Mars mission

China aims to catch up with India, the US, Russia and the European Union to reach the red planet.

Watch | All about the Emirates Mars Mission

A video on UAE's first mission to Mars

Humans lived in America 30,000 years ago, far earlier than thought: study

The research also implicated humans in the extinctions of many large Ice Age mammals such as mammoths and camels.

Live chat with Neuropsychiatrist Dr. Ennapadam S. Krishnamoorthy on The Hindu's Instagram

Following World Brain Day on July 22, the founder of Buddhi Clinic will discuss why quietude, food and your family impact the nerve centre

Coronavirus | India will have to deliver vaccine on a scale never seen before: Oxford scientist Andrew Pollard

Director of the Oxford Vaccine Group Andrew Pollard shares with Narayan Lakshman deep insights into the coronavirus endgame scenarios that might now be on the table

Coronavirus | Serum Institute has begun manufacturing Oxford COVID-19 vaccine

Institute will seek permission to carry out a phase-3 trial in India.

IIT-M researchers use artificial materials and ultrasound to detect defects in large structures

Conventional bulk ultrasonic inspection is tedious and time-consuming

Pandemic may call for sustained support for health-care workers

Managers of health-care workers must anticipate effects of stresses peculiar to the present crisis

Question Corner: How does a lizard lose its tail?

Readers may send their questions/answers to questioncorner@thehindu.co.in

Study finds evidence of vertical transmission of coronavirus across the placenta

Placenta, amniotic fluid and baby’s blood, nasopharyngeal and rectal samples tested positive

Arming India’s poor against the pandemic

Vitamins and nutritious food subsidy are indispensable in this fight

Previously unknown faults at the foot of the Himalaya discovered

These could cause earthquakes in the densely populated Nepal region

Sunday Quiz: Easy like Sunday morning

Mistakes are the portals of discovery: James Joyce

C.S. Seshadri, a leader in algebraic geometry

He achieved several breakthroughs that lie at the base of many branches of the profound discipline

NASA's Hubble successor delayed again by virus, other issues

“Mission success is critical, but team safety is our highest priority.”

Coronavirus | Districts in M.P., Bihar, Telangana most vulnerable, says Lancet study

Measured across five domains — socioeconomic, demographic, housing and hygiene, epidemiological, health system — the research's definition of 'vulnerable' means the risk of consequences of infection, including spread, morbidity, mortality, and social and economic effects of the pandemic.

Solar probe reveals sun's tiny 'campfires' in closest-ever photos

The photographs offer clues about the extreme heat of the outermost part of sun’s atmosphere.

Watch | Australia’s koalas likely to become extinct by 2050

A video on koalas that may become extinct in Australia's New South Wales

A website by science enthusiasts gains traction during the lockdown

The page shasthrasnehi.com has articles written by science buffs from across the country

Watch | India’s 2018 tiger census sets world record

A video on the ‘Status of Tigers in India 2018’ setting a Guinness record for being the world’s largest camera-trap wildlife survey.

Zydus begins human trials for potential COVID-19 vaccine

In the human trials, Zydus will enrol over 1,000 subjects across multiple clinical study sites in India.

First COVID-19 vaccine tested in U.S. shows promising results

No volunteers experienced a serious side effect, but more than half reported mild or moderate reactions.

Aptamer-based assay developed for coronavirus detection

It has 90% sensitivity and 99% specificity, says research team leader.

Assam keelback spotted for the first time in 129 years

The team also recorded 400 plants, 270 butterflies, 25 amphibians and 44 reptiles, 239 birds and at least 20 mammals

Unexposed people may have COVID-19-specific memory T cells

Further study is needed to ascertain the effect on the disease

Exhaled breath of COVID-19 patients can contain novel coronavirus, study finds

According to the pre-print, breath emission rate was highest during the earlier stages of COVID-19

Bracing for COVID-19 surge in south India

Battle to tackle the pandemic is still in its initial stages.

Understanding forest fires and their effect on carbon emissions

Burn indices help demarcate forest fire burn scars

IISc. team comes up with robotic arm controlled by gaze

It could prove useful for people with speech and motor impairment

Professor arrested for using American grant funds for Chinese research

A rheumatology professor and researcher with strong ties to China has been ordered ‘held without bond’ to face a charge of grant fraud for not

Scientists warn of potential wave of COVID-linked brain damage

Studies describe nerve damage, stroke, inflammation.

A forty-year-old puzzle about the stars is solved

Study led by Indian astrophysicists challenges the present understanding of nucleosynthesis in stars

Coronavirus | Lancet study casts doubts on herd immunity feasibility

The findings suggest that majority of the Spanish population is seronegative to SARS-CoV-2 infection, even in hotspot areas.

The secret of how caterpillars tame ants

Researchers in Bengaluru use MicroCT scans to understand how predators turn protectors

COVID-19 vaccine: Completion of trials could take at least 6 to 9 months, says Soumya Swaminathan

It is encouraging to see that at least seven Indian companies are developing COVID-19 vaccines. All of them must be tested ... and till we see results from these trials, we cannot predict which of them will be successful, says the Chief Scientist at WHO

IITM: Converting written text to synthesised speech

Researchers are developing the technology for 13 languages

Detecting RNA virus in saliva samples using Raman spectroscopy

Those positive for RNA virus can be tested using RT-PCR

Meta-analysis does not support continued use of point-of-care serological tests for COVID-19

Governments should stop contemplating the use of serological tests to issue immunity certificates

A sponge-like single-cell ancestor

How animals evolved from a simple life-form

How a fungus grows inside a bug, goes on to kill and feed on it

Researchers have now found these fungi for the first time in central India

WHO nod for Truenat rapid molecular assays for TB

The tests can detect tuberculosis bacteria as well as drug resistance

Two more species added to India’s list of butterflies

Lepidopterists have discovered the Striped Hairstreak and Elusive Prince in Arunachal Pradesh

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Indian High Commissioner to Bangladesh Riva Ganguly Das. Photo: Twitter/@ihcdhaka

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The flag of Islamic State. File

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Indian Institute of Technology (IIT Madras)

24K | Coronavirus | IIT Madras startup generates ₹22 crore funding for launching wrist band for detecting COVID symptoms

Chennai Corporation health worker takes a swab sample of a person for COVID-19 test in Kodambakkam in Chennai on July 24, 2020

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A deserted road in Kargil during a shutdown called by a students body. File photo: Special Arrangement

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Image for representation purpose only. (Illustration: Ritesh Kumar)

17K | 13-year-old allegedly gangraped by school manager, teachers in Rajasthan

The police attempt to disperse Indian Youth Congress and Bharatiya Janata Yuva Morcha activists who tried to barge into the NIA office in Kochi when the prime accused in the gold smuggling case were brought there.

15K | In Kerala, a tangled web of gold