Oct. 27 (UPI) -- New research suggests bigger, short-lived aerosol droplets pose a much greater risk than aerosol microdroplets, tiny particles that linger longest in the air.

Oct. 27 (UPI) -- In a new paper, researchers detailed the discovery of pristine organic compounds in freshly fallen space rock rock fragments recovered from the surface of a frozen lake in Michigan.

Oct. 27 (UPI) -- SpaceX has launched public beta testing of its Starlink program aiming to deliver high-speed Internet globally.

Oct. 27 (UPI) -- When a vampire bat gets sick, they spend less time around other members of the colony, according to a new study published Tuesday in the journal Behavioral Ecology, helping to slow the spread of disease.

Oct. 27 (UPI) -- Google is celebrating Bulgarian physician and microbiologist Dr. Stamen Grigorov with a new Doodle Tuesday, on what would have been his 142nd birthday.

ORLANDO, Fla., Oct. 27 (UPI) -- A growing number of space companies are launching satellites designed to combat climate change using Earth-observation technology.

Oct. 26 (UPI) -- The establishment of an affordable healthcare clinic in a remote part of Indonesia helped reduce illegal logging in the surrounding forests.

Oct. 26 (UPI) -- New research, published Monday in the journal Nature Astronomy, suggests tiny patches of ice may be hiding inside lunar shadows as a small as a penny.

Oct. 26 (UPI) -- Lunar water isn't relegated to the dark side of the moon. On Monday, NASA announced that scientists had discovered water molecules inside Clavius Crater, a massive lunar depression visible from Earth.

Oct. 26 (UPI) -- After decades of studying Amazonian ecosystems, scientists at Louisiana State University realized they were seeing fewer and fewer birds that forage on and near the forest floor.

Oct. 24 (UPI) -- SpaceX launched its Falcon 9 rocket into space Saturday morning, carrying 60 Internet satellites into orbit to help establish connections to remote areas.

Oct. 23 (UPI) -- Seabirds came to the Falkland Islands just the South Atlantic was cooling. New research suggests the birds' arrival drastically transformed Falkland ecosystems.

Oct. 23 (UPI) -- In a new study, published Friday in the journal The Plant Cell, scientists considered whether an alternative mode of photosynthesis might yield more heat-tolerant and drought-resistant plants.

Oct. 23 (UPI) -- Not even the most precise atomic clocks are immune to the quantum phenomenon known as superposition, according to a new theory.

Oct. 22 (UPI) -- New research suggests a pair of bird-like dinosaurs weren't able to fly. Instead, the pair could only clumsily glide.

Oct. 22 (UPI) -- For the second day in a row, officials were forced to scrub SpaceX's Starlink-15 mission.

Oct. 22 (UPI) -- Scientists have discovered a new plant grafting technique that yields more robust and vigorous progeny.

Oct. 21 (UPI) -- NASA astronaut Chris Cassidy and Anatoly Ivanishin and Ivan Vagner of Roscosmos landed in Kazakhstan Wednesday night after departing from a 196-day mission on the International Space Station.

Oct. 21 (UPI) -- Images released Wednesday by NASA suggest the OSIRIS-REx mission's Touch-And-Go sample collection event was a success.

Oct. 21 (UPI) -- According to a new study, published Wednesday in the journal Nature, the diabolical ironclad beetle's near-invincibility is thanks to the insect's tough exoskeleton and remarkable ability to play dead.