Hubble telescope spots distant dwarf galaxy

Hubble telescope spots distant dwarf galaxy

NASA has released a new image taken by its Hubble Space Telescope, which is unveiling new details surrounding the Tucana Dwarf galaxy. The galaxy is thought to be nearly 3 million light-years away from Earth. The agency said it was initially discovered by astronomer R.J. Lavery in 1990 and is much smaller and less luminous than many neighboring clusters of planets and stars.

‘Mercury bomb’ threatens food chain as Arctic thaws, researchers warn

‘Mercury bomb’ threatens food chain as Arctic thaws, researchers warn

Researchers at the University of Southern California (USC) Dornsife College of Letters, Arts and Sciences have discovered that thawing permafrost is releasing vast amounts of toxic mercury into the environment, posing a significant threat to the food chain. With the Arctic warming faster, the element is being released into watersheds such as Alaska’s Yukon River.