News
- Life
How much space does nature need? 30 percent of the planet may not be enough
Nations are drafting a plan to protect 30 percent of Earth by 2030 to save biodiversity. The number reflects politics more than scientific consensus.
- Health & Medicine
More evidence hints that hydroxychloroquine doesn’t help treat COVID-19
A malaria drug showed no benefit over standard care in two preliminary studies examining how well hydroxychloroquine works against the coronavirus.
- Astronomy
High-speed gas collisions prevent star birth in galaxies’ bars
The spiral galaxy NGC 1300 makes few if any stars in its bright bar. Simulations suggest gas clouds colliding at high speed stunt star formation.
- Space
Interstellar comet Borisov has an unexpected amount of carbon monoxide
The second known visitor from outside the solar system has three times as much CO relative to H2O than any comet seen in the inner solar system.
- Planetary Science
Unlike Earth, the gases in Venus’ atmosphere aren’t uniformly mixed
Measurements of Venus’ atmospheric nitrogen show that a planet’s upper atmosphere doesn’t necessarily match the lower atmosphere.
- Physics
Gravitational waves have revealed the first unevenly sized black hole pair
For the first time, LIGO and Virgo scientists spotted gravitational waves produced when one big black hole merged with a smaller one.
- Life
Toxin-producing bacteria can make this newt deadly
Bacteria living on the skin of some rough-skinned newts produce tetrodotoxin, a paralytic chemical also found in pufferfish.
- Humans
Here’s where things stand on COVID-19 tests in the U.S.
Government officials are weighing how to loosen social distancing measures across the United States, but that hinges on widespread COVID-19 testing.
- Chemistry
Ancient recipes led scientists to a long-lost natural blue
Led by medieval texts, scientists hunted down a plant and extracted from its tiny fruits a blue watercolor whose origins had long been a mystery.
- Space
A weird stellar explosion may have caused the brightest supernova yet seen
Astronomers may have spotted the first known example of a rare “pulsational pair-instability” supernova.
- Health & Medicine
Why 6 feet may not be enough social distance to avoid COVID-19
Scientists who study airflow warn that virus-laden drops may travel farther than thought.
- Climate
Climate change made a southwestern U.S. drought one of the worst in 1,200 years
Tree ring records show that the 2000–2018 drought in southwestern North America is among the most severe to strike the region in over a millennium.
