242 articles from FRIDAY 23.4.2021

A breakthrough astrophysics code rapidly models stellar collisions

A new breakthrough astrophysics code, named Octo-Tiger, simulates the evolution of self-gravitating and rotating systems of arbitrary geometry using adaptive mesh refinement and a new method to parallelize the code to achieve superior speeds. This new code to model stellar collisions is more expeditious than the established code used for numerical simulations.

A creature of mystery: New Zealand’s love-hate relationship with eels

Native species have been revered, feared, hunted and tamed. Now experts hope revulsion can give way to fascinationFor many years, the top-rated attraction in the Tasman district of New Zealand was a cafe famed for its rural setting, seafood chowder – and tame eels.For a few dollars you could buy a pottle of mince and a wooden stick to take down to the stream, where a blue-black mass was shining,...

‘No data’ linking Covid vaccines to menstrual changes, US experts say

Some have reported changes amid vaccine rollout but experts say ‘one unusual period is no cause for alarm’Experts are trying to assuage concerns and combat misinformation about how the Covid-19 vaccines may affect menstrual cycles and fertility, after anecdotal reports that some people experienced earlier, later, heavier or more painful periods following the jab.“So far, there’s no data...

Biden’s Climate Summit Made Progress. But We Won’t Reach Net Zero by 2050 Without Those Who Weren’t Invited

The United States convened 40 heads of state in a virtual climate summit this week, with the goal of eliciting commitments from attendees for radical reductions in carbon emissions. The U.S. pledged 50% reduction below 2005 levels by 2030, and others announced their own new targets — with the overall goal of putting the planet on track to carbon neutrality by 2050, the minimum needed to...

Flexible diet may help leaf-eating lemurs survive deforestation

A new study sequencing the genome of four species of sifakas (Propithecus), a genus of lemurs found in Madagascar's forests, reveals that these animals' taste for leaves runs all the way to their genes, which are also more diverse than expected for an endangered species. But they can also thrive on fruit and flowers, which may be an advantage over being strictly leaves-only or fruit-only in the...

Climate change affects deep-sea corals and sponges differently

Corals and sponges are important foundations in ocean ecosystems providing structure and habitats that shelter a high number of species like fish, crabs and other creatures, particularly in the seamounts and canyons of the deep sea. Researchers at the University of New Hampshire have discovered that when it comes to climate change not all deep-sea corals and sponges are affected the same and some...