New Scientist Space - Cosmology

Two extremely damaging crop pests have interbred to create hybrids resistant to more than one pesticide that could cause serious problems in many countries

The company’s mega-constellation is having to perform a huge number of manoeuvres to prevent a collision in Earth orbit

Your chronological age can’t always tell you the state of your health, which is why biological clocks have been developed to show our risk of developing diseases or dying – but they’re not all they are cracked up to be, says columnist Graham Lawton

Many species of fungus across the world produce psilocybin, a chemical with psychedelic effects in humans, but its evolutionary purpose may be to deter mushroom-munching insects

A 5500-year-old genome recovered from human skeletal remains in Colombia may give insights into the early evolution of syphilis and its relatives

A distinct set of microbes has been identified in people with obesity, which might help spot and treat the condition early – but whether it is a cause or effect of the condition isn’t known

Long thought to have walked bipedally, like us, Australia’s extinct giant kangaroos have features that indicate they could also have bounced

A trial will finally reveal whether limiting the time teens spend on social media really does affect their mental health

Donated placentas can be processed into thin, sterilised sheets that are packed with natural healing substances and reduce scarring when applied to wounds

A striking shot of biting flies on the head of a crocodile is among the winning entries in the British Ecological Society’s annual Capturing Ecology photography competition

Women using frozen embryos as part of their IVF treatment can either choose to use a medicated cycle or their natural one to prepare their uterus for a pregnancy. Now, scientists have found that the latter option seems to carry fewer risks

Photographer Frédéric Noy's shots give an insight into life around the rainforests of Udzungwa Mountains National Park – and efforts to protect it

From smartphones to net zero, there has been no shortage of innovative ideas in the past 25 years, which is why we have taken a look back to choose the best

Time it right each month, and you can spot two fleeting tricks of light on the lunar surface. Abigail Beall is planning ahead

Feedback has seen all the fuss about the finale of Stranger Things, but would like to point out that if we're going to dissect the plot, we have bigger things to worry about

Peter F. Hamilton’s new book A Hole in the Sky is set on a troubled ark ship hundreds of years into its voyage, with fantastic plot twists and turns. I'm a big Hamilton fan, but one aspect of the novel proved alienating for me, says Emily H. Wilson

The books, TV, games and more that New Scientist staff have enjoyed this week

Imposing order on the world is seductive, but it flattens out the diversity and rich messiness of human life. Oddly, playing by the rules may help us fight back, argues C. Thi Nguyen in The Score

Almost 80 years ago, sociologists identified a new personality type that is particularly sensitive to loneliness. It's even more relevant today, says Annalee Newitz

We thought we could address big social problems by steering individual behaviour. But "nudging" people doesn't work, say behavioural scientists Nick Chater and George Loewenstein