Spiral galaxies such as the Milky Way have discs which are really thin, in which the major fraction of their stars are found. These discs are limited in size, so that beyond certain radius there are very few stars left.

Tropical Storm Aletta is spinning more than 440 miles off the southwestern coast of Mexico and using satellite data, NASA peered into the storm to uncover where the heaviest rain was falling.

Field trials for a vaccine to protect cattle against bovine tuberculosis (bovine TB) would need to involve 500 herds – potentially as many as 75,000-100,000 cattle – to demonstrate cost effectiveness for farmers, concludes a study published today in the journal eLife.

James Cook University scientists have discovered a technique to apply natural plant extracts such as Tea Tree Oil as a coating for medical devices, a process which could prevent millions of infections every year.

NOAA scientists are forecasting that this summer’s Gulf of Mexico hypoxic zone or ‘dead zone’ – an area of low to no oxygen that can kill fish and other marine life – will be approximately 5,780 square miles, approximately the size of Connecticut.

A new study puts a surprising twist—one might even say a double spiral—into our understanding of how coral reefs react to ocean warming and acidification. It also offers the possibility of an early warning system for the warmth-induced bleaching events that are increasingly harming coral reefs worldwide.

Plants use many of the same methods as animals to camouflage themselves, a new study shows.

Research on plant camouflage is limited compared to the wealth of knowledge about how animals conceal themselves.

A new approach to killing C. difficile that silences key bacterial genes while sparing other bacteria may provide a new way to treat the most common hospital-acquired bacterial infection in the United States, according to researchers.

NASA-NOAA’s Suomi NPP satellite saw the Eastern Pacific Ocean’s first tropical storm coming together. 

Tropical Depression 05W briefly reached tropical storm status overnight on June 5 into June 6, and then weakened back to a depression at 5 a.m. EDT (0900 UTC). Once 05W reached tropical storm status it was named “Ewiniar.” NASA’s Aqua satellite captured infrared imagery that provided clues that the storm would strengthen.