First segments of the world"s largest telescope mirror shipped to Chile
The construction of the European Southern Observatory's Extremely Large Telescope (ESO's ELT) has reached an important milestone with the delivery to ESO and shipment to Chile of the first 18 segments of the telescope's main mirror (M1). Once they ar.....»»
Decades after global regulations, the Arctic Ocean"s legacy persistent organic pollutants haven"t dropped
The presence of persistent organic pollutants (POPs) in all the world's oceans but one has been in steady decline since 2001, when 152 countries agreed on a comprehensive global ban. The exception has been the Arctic Ocean, which has seen a sharp ris.....»»
Researchers call for nuanced understanding of "tribe" in Arab world
The study of Arab tribes should not be abandoned because Middle East and North African citizens continue to insist on the relevance of the term in their daily lives, says a new study published in the journal Frontiers in Political Science......»»
Testing thousands of RNA enzymes helps find first "twister ribozyme" in mammals
The "RNA world" hypothesis proposes that the earliest life on Earth may have been based on RNA—a single-stranded molecule similar in many ways to DNA—like some modern viruses. This is because, like DNA, RNA can carry genetic information, but, lik.....»»
Is the election making you feel adrift and wobbly? That"s "zozobra," and Mexican philosophers have some advice
Ever had the feeling that you can't make sense of what's happening? One moment everything seems normal, then suddenly the frame shifts to reveal a world on fire, struggling with war, climate change and political violence and upheaval......»»
Viewpoint: Carl Sagan"s scientific legacy extends far beyond "Cosmos"
On Nov. 9, 2024, the world will mark Carl Sagan's 90th birthday—but sadly without Sagan, who died in 1996 at the age of 62......»»
Q&A: How animal tracking data can help preserve biodiversity
Today's ecologists have more data than ever before to help monitor and understand the world's biodiversity. Yet researchers are still working to get more detailed information to better combat declining animal populations that can eventually lead to s.....»»
Hubble and Webb are the dream team—don"t break them up, researchers say
Many people think of the James Webb Space Telescope as a sort of Hubble 2. They understand that the Hubble Space Telescope (HST) has served us well but is now old and overdue for replacement. NASA seems to agree, as they have not sent a maintenance m.....»»
Globular cluster Gran 5 hosts two stellar populations, study finds
Using the Gemini-South telescope, astronomers have performed high-resolution near-infrared spectroscopy of stars in a Galactic globular cluster known as Gran 5. They found that this cluster harbors two stellar populations with different metallicities.....»»
Elon Musk has gone all in for Trump—here"s what"s at stake for the world"s richest man in the US election
Elon Musk is supporting Donald Trump in his quest to regain the American presidency. He has committed millions of dollars to a pro-Trump "political action committee" (PAC) and has appeared alongside Donald Trump at some of his rallies......»»
World"s first wooden satellite launched into space
The world's first wooden satellite has blasted off on a SpaceX rocket, its Japanese developers said Tuesday, part of a resupply mission to the International Space Station......»»
Latest space station science reveals news for astronaut health and telescope longevity
Recent findings from the International Space Station address wound healing, fine motor control in space, and radiation resistance by the station's Glowbug gamma-ray telescope......»»
The "27 Club" isn"t true, but it is real—a sociologist explains why myths endure and how they shape reality
There's a certain allure to the notion that some of the world's brightest stars burn out at the age of 27. The so-called 27 Club has captivated the public imagination for half a century. Its members include legendary musicians Jimi Hendrix, Janis Jop.....»»
Biologists reveal the genetic "switch" behind parrot color diversity
From the Carnival in Rio de Janeiro to the shoulders of pirates: parrots are synonymous with color for people across the world. In a study published in the journal Science, scientists from The University of Hong Kong, together with an international t.....»»
Svalbard Global Seed Vault evokes epic imagery and controversy because of the symbolic value of seeds
Two-thirds of the world's food comes today from just nine plants: sugar cane, maize (corn), rice, wheat, potatoes, soybeans, oil-palm fruit, sugar beet and cassava. In the past, farmers grew tens of thousands of crop varieties around the world. This.....»»
Did the world"s best-preserved dinosaurs really die in "Pompeii-type" events?
Between about 120 million and 130 million years ago, during the age of dinosaurs, temperate forests and lakes hosted a lively ecosystem in what is now northeast China. Diverse fossils from that time remained pretty much undisturbed until the 1980s, w.....»»
Future space telescopes could be made from thin membranes, unrolled in space to enormous size
Space-based telescopes are remarkable. Their view isn't obscured by the weather in our atmosphere, and so they can capture incredibly detailed images of the heavens. Unfortunately, they are quite limited in mirror size......»»
Dams have taken half the water from Australia"s second biggest river—and climate change will make it even worse
The largest wetland on Australia's second longest river, the Murrumbidgee in the southern Murray-Darling Basin, is drying up. This is bad news for the plants, animals and people who rely on the vast Lowbidgee Floodplain. So it's important to understa.....»»
The world promised to tame methane: Emissions are still rising
Sitting in his cramped office in Paris, Manfredi Caltagirone admits that one of the world's highest-profile efforts to cut methane emissions so far isn't stopping the gas from escaping and warming the atmosphere......»»
Sequencing one of the world"s oldest trees to learn how mutations occur in clonally reproducing organisms
A team of biologists, environmental scientists and geneticists affiliated with multiple institutions across the U.S. has learned more about how mutations occur in clonally reproducing organisms by sequencing one of the oldest trees in the world. The.....»»
Observations detect hundreds of possible supergiant stars in two nearby galaxies
Using the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), Chinese astronomers have identified nearly 300 candidate supergiant stars in the Andromeda and Triangulum galaxies. The finding was reported in a research paper published O.....»»