Scientists have found a gas associated with living organisms in a region of Venus' atmosphere. They can't figure out how it got there if it didn't come from life.
Extreme fires are more likely with climate change, and they're making it harder for some tree species to regenerate. Ecologists say this could transform large areas of Western forest into grassland.
David Legates, a professor whose research has been supported by fossil fuel companies, has been hired for a top position at the federal agency that oversees weather and climate forecasting.
The company had placed its worldwide vaccine trials on hold for several days. It now says a safety review by regulators and reviewers is complete. No word on when studies in the U.S. might resume.
Scientists are racing to develop a vaccine that proves "safe and effective." It may not prevent infection in everyone who gets it, but it still could eventually stop the pandemic. Here's how.
Some pharmaceutical companies are well into the final phase of clinical trials for a coronavirus vaccine. But efforts to recruit patients from minority groups are just beginning.
Mangroves help protect coastal areas from flooding and sequester more carbon than tropical forests. But new studies suggest they may be wiped out by the rise of sea levels.
After losing trust in official information, the Japanese public took it upon themselves to learn to measure for radioactive matter. Nearly a decade after the nuclear disaster, they're still testing.