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Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.

Health

Rare embryo mutations may increase risk of developing schizophrenia

We know that genetic factors play the largest role in the risk of developing schizophrenia, but few of the genes involved have been identified. Now researchers have found relevant mutations that occur in embryos

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SYDNEY, AUSTRALIA - OCTOBER 06: Joggers move along the Milsons Point boardwalk at sunrise on October 06, 2021 in Sydney, Australia. The NSW government has outlined a roadmap for easing COVID-19 restrictions once the state reaches its 70% double vaccination target - which is expected to be achieved this week. From Monday 11 October restrictions will ease for those who are fully vaccinated, with up to five visitors permitted in a home, and up to 20 people allowed to gather outdoors. Gyms, indoor recreation and sporting facilities able to reopen while retail and hospitality can also reopen subject to density limits. Schools will begin to reopen from 18 October. The 5km rule will be lifted, but residents of Greater Sydney will not be allowed to travel into regional areas until the state reaches 80% double dose vaccinations. (Photo by Lisa Maree Williams/Getty Images)

Health

Early risers may be genetically less likely to get depression symptoms

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Carrion crow (Corvus corone) black bird perched on branch and looking at camera

Life

Crows can understand probability like primates do

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Physics

Quantum lidar could help driverless vehicles spot bright objects

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Health

Having an ‘overweight’ BMI may not lead to an earlier death

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A group of hands

Chemistry

Men and women’s hands can be distinguished just from their scent

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Mathematics

Should all mathematical proofs be checked by a computer?

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Space

We must address a key obstacle to our new age of space exploration

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T861Y1 CRISPR-Cas9 gene editing complex, illustration

Health

The high cost of CRISPR therapy will stop it getting to most patients

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Humans

Ancient Scandinavians wrote encrypted messages in runes 1500 years ago

Objects from Norway and Sweden, some dating from AD 500 to 700, show clear evidence of encryption using runic symbols, the alphabet later used by the Vikings

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Environment

Loss of large animals in Europe is entirely due to people, not climate

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Environment

Efforts to mass-produce green steel are finally nearing reality

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Environment

Record for hottest day ever recorded on Earth broken twice in a row

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Life

Threatened seabirds are foraging at plastic pollution hotspots

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