The Environmental Battle Over the Mexican Border Wall
Environmental News

The Environmental Battle Over the Mexican Border Wall

SONORAN DESERT, Ariz.—As President Trump pushes to speed construction of the Mexican border wall, both opponents of the wall and his administration are invoking the environment—one side to stop the barrier, and the other to build it. Environmental groups say an impassable 30-foot-high wall would prevent endangered pronghorn, wolves, wildcats and other animals from roaming…

‘Pale Blue Dot’ Revisited – Iconic View of Earth From 3.7 Billion Miles Away Updated
Nature & Science

‘Pale Blue Dot’ Revisited – Iconic View of Earth From 3.7 Billion Miles Away Updated

This updated version of the iconic “Pale Blue Dot” image taken by the Voyager 1 spacecraft uses modern image-processing software and techniques to revisit the well-known Voyager view while attempting to respect the original data and intent of those who planned the images. Credit: NASA/JPL-Caltech A recent update to this historic portrait shows Earth as…

Asteroid warning: A 1KM rock will ‘send us back to Middle Ages’, claims asteroid hunter
Nature & Science

Asteroid warning: A 1KM rock will ‘send us back to Middle Ages’, claims asteroid hunter

Asteroid trackers estimate about 100 tons of orbital debris slams into the planet every single day. The small meteoroids and space dust particles safely crash into the atmosphere and burn up before they can hit the ground. But larger asteroids are out there and they frequently visit Earth’s corner of space, and even less frequently,…

Earth’s cousins: Upcoming missions to look for ‘biosignatures’ in exoplanet atmospheres
Nature & Science

Earth’s cousins: Upcoming missions to look for ‘biosignatures’ in exoplanet atmospheres

Credit: CC0 Public Domain Scientists have discovered thousands of exoplanets, including dozens of terrestrial—or rocky—worlds in the habitable zones around their parent stars. A promising approach to search for signs of life on these worlds is to probe exoplanet atmospheres for “biosignatures”—quirks in chemical composition that are telltale signs of life. For example, thanks to…

Sharp increase in Ningaloo whale shark injuries might be due to boat encounters
Marine Ecology

Sharp increase in Ningaloo whale shark injuries might be due to boat encounters

The tail of a whale shark (Rhincodon typus), showing massive scarring. Credit: Jess Hadden Almost one-fifth of the whale sharks (Rhincodon typus) in Western Australia’s Ningaloo Reef Marine Park show major scarring or fin amputations, with the number of injured animals increasing in recent years, new research reveals. Distinctive scar patterns strongly suggest many of…

Study identifies the first potentially invasive species to reach the Antarctica on drifting marine algae
Marine Ecology

Study identifies the first potentially invasive species to reach the Antarctica on drifting marine algae

The new article describes for the first time the arrival of organisms towards Antarctic latitudes through floating macroalgae. Credit: British Antarctic Survey, BAS Drifting algae in the Austral Ocean can bring invasive species to the Antarctic coasts, according to a study published in the journal Scientific Reports. The new study describes the first scientific evidence…

Climate Change is Decimating the Chinstrap Penguins of Antarctica
Marine Ecology

Climate Change is Decimating the Chinstrap Penguins of Antarctica

Chinstrap penguins are exquisitely adapted to their environment. They live and breed in some of the world’s harshest conditions, nesting in the windblown, rocky coves of the Antarctic Peninsula, a strip of land comprising the northernmost part of the frigid continent. In water they are precision hunters, darting after krill, the tiny shrimp-like crustaceans that…