742,630 articles

Using DNA in the water tell us how many fish are there

River water, lake water, and seawater contain DNA belonging to organisms such as animals and plants. Ecologists have begun to actively analyze such DNA molecules, called environmental DNA, to assess the distribution of macro-organisms. Challenges yet remain, however, in quantitative applications of environmental DNA.

Toward lasers powerful enough to investigate a new kind of physics

In a paper that made the cover of the journal Applied Physics Letters, an international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers. This approach, based on the compression of light pulses, would make it possible to reach a threshold intensity for a new type of physics that has never been explored before: quantum electrodynamics phenomena.

Are we making spacecraft too autonomous?

When SpaceX’s Crew Dragon took NASA astronauts to the ISS near the end of May, the launch brought back a familiar sight. For the first time since the space shuttle was retired, American rockets were launching from American soil to take Americans into space. Inside the vehicle, however, things couldn’t have looked more different. Gone was the sprawling dashboard of lights and switches...

What kind of face mask gives the best protection against Covid-19?

Your questions answered on what type of mask to wear to cut the risk of getting or spreading Covid-19Coronavirus – latest updatesSee all our coronavirus coverageYes. Different types of mask offer different levels of protection. Surgical grade N95 respirators offer the highest level of protection against Covid-19 infection, followed by surgical grade masks. However, these masks are costly, in...

How life on Earth could help us find life on Mars

In our continuing search for other life in the universe, one place has always looked promising—Mars. It is a rocky planet like Earth, orbiting the same star, and at a distance where water could have been present on the planet.

'I'm cautiously optimistic': Imperial's Robin Shattock on his coronavirus vaccine

Team is using new approach that could be cheap and scalable and become the norm within five yearsProf Robin Shattock would have liked slightly longer to develop the revolutionary approach to vaccines that he is pretty sure will not only save lives in the Covid-19 pandemic but become the norm for vaccine development within five years.His team at Imperial College were working on Ebola and Lassa...

First evidence of snake-like venom glands found in amphibians

Caecilians are limbless amphibians that can be easily mistaken for snakes. Though caecilians are only distantly related to their reptilian cousins, researchers in a study appearing July 3 in the journal iScience describe specialized glands found along the teeth of the ringed caecilian (Siphonops annulatus), which have the same biological origin and possibly similar function to the venom glands of...

Getting a grasp on India's malaria burden

A new approach could illuminate a critical stage in the life cycle of one of the most common malaria parasites. The approach was developed by scientists at Kyoto University's Institute for Integrated Cell-Material Sciences (iCeMS) in Japan and published in the Malaria Journal.

Towards lasers powerful enough to investigate a new kind of physics

In a paper that made the cover of the journal Applied Physics Letters, an international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers. This approach, based on the compression of light pulses, would make it possible to reach a threshold intensity for a new type of physics that has never been explored before: quantum electrodynamics phenomena.

Coronavirus live news: cases rising in 37 US states as Brazil infections near 1.5m

UN predicts mass bankruptcies in Latin America; Florida confirms 10,000 new cases in one day; global cases near 11m. Follow the latest updates Cases rising in 37 US statesBrazil infections nearing 1.5mTrump awol as president during pandemic, says ex-CIA chiefInteractive vaccine tracker: how close are we?See all our coronavirus coverage 1.45am BST North Korean leader Kim Jong-Un has praised what he...


THURSDAY 2. JULY 2020


Why are the offspring of older mothers less fit to live long and prosper?

The offspring of older mothers don't fare as well as those of younger mothers, in humans and many other species. They aren't as healthy, or they don't live as long, or they have fewer offspring themselves. A longstanding puzzle is why evolution would maintain this maternal effect in so many species, since these late-born offspring are less fit to survive and reproduce.

Research reflects how AI sees through the looking glass

Intrigued by how reflection changes images in subtle and not-so-subtle ways, a team of researchers used artificial intelligence to investigate what sets originals apart from their reflections. Their algorithms learned to pick up on unexpected clues such as hair parts, gaze direction and, surprisingly, beards - findings with implications for training machine learning models and detecting faked...