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Planetary Sciences 1 hour ago

Signs of 'spider' phenomenon on Mars

ESA's Mars Express has snapped the telltale traces of "spiders" scattered across the southern polar region of Mars.

Astronomy 1 hour ago

See the Southern Ring Nebula in 3D

Planetary nebula are some of nature's most stunning visual displays. The name is confusing since they're the remains of stars, not planets. But that doesn't detract from their status as objects of captivating beauty and intense ...

Environment 2 hours ago

Africa's megacities threatened by heat, floods, disease—action needed to start greening, adapt to climate change

Cities cover just 3% of the planet. But they emit 78% of all global greenhouse gas emissions, absorb 80% of final global energy (what consumers use) and consume 60% of clean drinking water.

Environment 2 hours ago

New research confirms plastic production is directly linked to plastic pollution

A research paper published in Science Advances reveals a direct correlation between plastic production and plastic pollution, such that every 1% increase in plastic production is associated with a 1% increase in plastic pollution ...

Biochemistry 5 hours ago

A chemical mystery solved—the reaction that explains large carbon sinks

A mystery that has puzzled the scientific community for more than 50 years has finally been solved. A team from Linköping University, Sweden, and Helmholtz Munich have discovered that a certain type of chemical reaction ...

Evolution 20 hours ago

Bioluminescence first evolved in animals at least 540 million years ago, pushing back previous oldest dated example

Bioluminescence first evolved in animals at least 540 million years ago in a group of marine invertebrates called octocorals, according to the results of a new study from scientists with the Smithsonian's National Museum ...