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Ozone levels across Northern Hemisphere have been rising for 20 years

Science News // 7 hours ago

Ozone levels across Northern Hemisphere have been rising for 20 years

Aug. 21 (UPI) -- While emission levels for ozone-forming chemicals have fallen in some North American cities, new research suggests tropospheric ozone levels have increased across the Northern Hemisphere over the last 20 years.

Magnetic flux powers black hole's powerful jet

Science News // 11 hours ago

Magnetic flux powers black hole's powerful jet

Incredible mobility of flying foxes complicates conservation efforts

Science News // 12 hours ago

Incredible mobility of flying foxes complicates conservation efforts

Fruit flies reveal first known social cue of safety

Science News // 14 hours ago

Fruit flies reveal first known social cue of safety

UPI News Quiz: oil spill, unemployment, Joe Biden

U.S. News // 20 hours ago

UPI News Quiz: oil spill, unemployment, Joe Biden

An oil spill, new jobless claims, Joe Biden's presidential nomination -- how closely did you follow the headlines this week? Test your knowledge in the UPI News Quiz for Aug. 21, 2020.

Paleontologists find giant lizard in stomach of a prehistoric marine carnivore

Science News // 1 day ago

Paleontologists find giant lizard in stomach of a prehistoric marine carnivore

Aug. 20 (UPI) -- Researchers recently discovered the remains of a giant lizard-like reptile inside the stomach of a Middle Triassic ichthyosaur.

X-rays reveal details of animal mummification in ancient Egypt

Science News // 1 day ago

X-rays reveal details of animal mummification in ancient Egypt

Aug. 20 (UPI) -- X-ray images of three mummified animals -- a cat, a bird and a snake -- have offered researchers fresh insights into the relationship between ancient Egyptians and animals during the Late Period, between 664 and 332 B.C.

Fossil leaves prove elevated CO2 triggered greening 23M years ago

Science News // 1 day ago

Fossil leaves prove elevated CO2 triggered greening 23M years ago

Aug. 20 (UPI) -- The links between rising CO2 levels, global warming and greening trends have been confirmed by fossilized leaves from a 23 million-year-old forest.

Biomedical research often ignores the diverse genetic ancestry of Black Americans

Science News // 1 day ago

Biomedical research often ignores the diverse genetic ancestry of Black Americans

Aug. 20 (UPI) -- The genetic ancestry of Black Americans is diverse, according to a new survey of residents in four U.S. cities. The results undermine the use of skin color as a proxy for race in social science and biomedical research.

Bayer funds seed company to boost quality of produce grown indoors

U.S. News // 1 day ago

Bayer funds seed company to boost quality of produce grown indoors

Aug. 20 (UPI) -- Pharmaceutical giant Bayer funded a new seed company this summer to overcome a big problem for indoor farms, or greenhouses -- the plants they grow had been bred for outdoor farms.

Cold gas ejected from the center of the Milky Way puzzles scientists

Science News // 2 days ago

Cold gas ejected from the center of the Milky Way puzzles scientists

Aug. 19 (UPI) -- Astrophysicists have found bullet-like globs of dense, cold gas that were expelled from the center of the Milky Way.

A bit of gold grants crystals new electric properties

Science News // 2 days ago

A bit of gold grants crystals new electric properties

Aug. 19 (UPI) -- Crystals can acquire a variety of novel electric qualities when enhanced with just a bit of gold -- or any other noble metal -- according to a new study.

Plastic debris leaches toxins into the stomachs of sea birds

Science News // 2 days ago

Plastic debris leaches toxins into the stomachs of sea birds

Aug. 19 (UPI) -- New research suggests plastic pollution can poison sea birds, leaching toxins into the stomachs of birds that ingest plastic.

Alaska's salmon are getting smaller

Science News // 2 days ago

Alaska's salmon are getting smaller

Aug. 19 (UPI) -- New research suggests Alaska's salmon are spending fewer years in the ocean and returning early to spawn. As a result, Alaska's salmon are smaller than they were 30 years ago.

Google honors periodic table pioneer Julius Lothar Meyer with Doodle

Science News // 2 days ago

Google honors periodic table pioneer Julius Lothar Meyer with Doodle

Aug. 19 (UPI) -- Google is celebrating chemist Julius Lothar Meyer, who was one of two scientists to discover the periodic law of chemical elements and pioneer early periodic tables on what would have been his 190th birthday.

Supernova could explain extinctions at the end of the Devonian period

Science News // 3 days ago

Supernova could explain extinctions at the end of the Devonian period

Aug. 18 (UPI) -- New research suggests harmful cosmic rays from a nearby supernova might have caused the extinction events that form the boundary between the Devonian-Carboniferous periods.

Humidity helps virus particles remain airborne, travel farther

Science News // 3 days ago

Humidity helps virus particles remain airborne, travel farther

Aug. 18 (UPI) -- Two new studies look to answer questions about how particles become airborne and how their movements are influenced by environmental conditions.

Dust allows virus particles to become airborne, study shows

Science News // 3 days ago

Dust allows virus particles to become airborne, study shows

Aug. 18 (UPI) -- While most researchers have focused on how viral particles become airborne via coughing, sneezing and breathing, new research suggests exhalation isn't a prerequisite for floating viral particles.

SpaceX sets rocket booster reuse record in satellite launch

Science News // 3 days ago

SpaceX sets rocket booster reuse record in satellite launch

ORLANDO, Fla., Aug. 18 (UPI) -- SpaceX reused the same first-stage Falcon 9 rocket booster for the sixth time in a launch from Florida on Tuesday morning, notching a record for the launch industry.

Farmers should share burden of cultivating wild bees, researchers say

Science News // 3 days ago

Farmers should share burden of cultivating wild bees, researchers say

Aug. 18 (UPI) -- Too often, researchers argue in a new paper, farmers who cultivate habitat for bees go unrewarded, while their neighbors receive pollination services for free.

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