Coronavirus "long-haulers" are still experiencing symptoms like fevers, brain fog, memory loss, nosebleeds, shortness of breath, and blurry...

Apollo 11 commander Neil Armstrong famously had to dodge a boulder-strewn crater just seconds before the first moon landing in 1969 — but for future lunar touchdowns, NASA expects robotic eyes to see such missions to safe landings. And Amazon CEO Jeff Bezos' Blue Origin space venture is helping to make it so. Today NASA talked up a precision landing system known as SPLICE (which stands for...

Peering through a microscope in 2016, Dania Albini gazed at an algae-eating water flea. Its gut appeared full and green with all the ingested teeny-tiny Chlorella vulgaris algae. But she also observed bright green blobs of this phytoplankton in an unexpected place: the herbivore's brood pouch."I was really surprised to see them there," said Albini, an aquatic ecologist then at...

A lower supply of a certain type of immune cell in older people that is critical to fighting foreign invaders may help explain their vulnerability to severe COVID-19, scientists say. When germs enter the body, the initial "innate" immune response generates inflammation not specifically targeted at the bacteria or virus. Within days, the more precise "adaptive" immune response starts generating...

And another thing: Oil companies are profiting from California...

At least 25 people have died due to the wildfires in California since Aug. 15, officials...

The discovery gives strength to the idea that the Arabian Peninsula was a key route from Africa for early migrations of Homo...

Flooding has affected well over a million people across East Africa, another calamity threatening food security on top of a historic locust outbreak and the coronavirus pandemic. The Nile River has hit its highest levels in a half-century under heavy seasonal rainfall, and large parts of Sudan, Ethiopia and South Sudan have been swamped amid worries about climate change. As warnings of a new...

Just next door, cosmologically speaking, is a planet almost exactly like Earth. It’s about the same size, is made of about the same stuff and formed around the same star. To an alien astronomer light years away, observing the solar system through a telescope, it would be virtually indistinguishable from our own planet. But to know the surface conditions of Venus – the temperature of a...

A British COVID-19 test known as DnaNudge that gives results in just over an hour and which requires no laboratory was accurate in almost all cases, an academic review in the Lancet has found. Faster testing could allow more people to return to work or permit testing on entry to hospital, thus slowing a second spike in coronavirus infections. The new test, based on the design of a DNA test...

A British COVID-19 test known as DnaNudge that gives results in just over an hour and which requires no laboratory was accurate in almost all cases, an academic review in the Lancet has found. Faster testing could allow more people to return to work or permit testing on entry to hospital, thus slowing a second spike in coronavirus infections. The new test, based on the design of a DNA test...

The 2020 Ig Nobel prizes honour crocodilian vocalisations, narcissistic eyebrows and vibrating...