{"id":779830,"date":"2026-07-04T13:13:12","date_gmt":"2026-07-04T13:13:12","guid":{"rendered":"https:\/\/www.newsbeep.com\/ca\/779830\/"},"modified":"2026-07-04T13:13:12","modified_gmt":"2026-07-04T13:13:12","slug":"science-news-this-week-james-webb-telescope-finds-a-never-before-seen-substance-chinas-great-green-wall-grows-faster-than-natural-trees-and-a-medici-murder-mystery-is-solved","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ca\/779830\/","title":{"rendered":"Science news this week: James Webb telescope finds a never-before-seen substance, China’s ‘Great Green Wall’ grows faster than natural trees, and a Medici murder mystery is solved"},"content":{"rendered":"

This week’s science news was all about goings on in space, with reports that the James Webb Space Telescope (JWST) picked up a signal from a mysterious, never-before-seen substance on Pluto and Titan<\/a>.<\/p>\n

The space telescope detected a specific absorption line in the spectra of these worlds’ atmospheres, revealing the characteristic trace of a unique and unknown molecule. It’s unclear exactly what the molecule could be, and the mystery is made even more compelling by the fact that the environments of Pluto and Titan are very distinct.<\/p>\n

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Farther afield, the JWST<\/a>‘s predecessor, the Hubble Space Telescope, spotted “impossible” light from a galaxy we shouldn’t even be able to see<\/a>. And in the busy skies surrounding our own planet, scientists are dreaming up a scheme to drop a giant “airbag” that could protect us from solar storms<\/a>, sending spacecraft into orbit to save doomed telescopes<\/a>, and also giving answers to why metal sticks together in space<\/a>.<\/p>\n

And just in time for Independence Day weekend, the sun has launched a string of eruptions to Earth that will likely paint the night skies with colorful auroras<\/a>.<\/p>\n

China’s ‘Great Green Wall’ grows faster than natural forests<\/p>\n

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The San Jacinto and southern San Andreas faults have reached their highest levels of tectonic stress in 1,000 years.<\/p>\n

(Image credit: PEDRO PARDO via Getty Images)<\/p>\n

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China<\/a> is no stranger to engineering projects designed to bring its environment to heel; we’ve recently covered the Asian powerhouse’s attempts to tame nature through the creation of atmospheric rivers, the world’s biggest dam and water transfers<\/a>. But these are hardly China’s only forays into sculpting its natural environment, with the country having planted more than 66 billion trees along its northern borders to halt the advance of the Gobi and Taklamakan deserts.<\/p>\n

Now, new research has revealed a startling detail about the trees in this “Great Green Wall”: they’re growing significantly faster than natural forests. Exactly why remains a mystery, but, as Live Science contributor Brian Owens<\/a> reveals, it could be due to a stronger response from the trees to rising atmospheric carbon dioxide.<\/p>\n

Discover more planet Earth news<\/p>\n

Get the world\u2019s most fascinating discoveries delivered straight to your inbox.<\/p>\n

\u2014‘It sounds so impossible’: Student studying fungus that makes users hallucinate tiny people may be on the verge of a scientific breakthrough<\/a><\/p>\n

\u2014‘Uncharted territory’: Record high ocean temperatures confirmed for June as El Ni\u00f1o strengthens its grip<\/a><\/p>\n

\u2014Study suggests life on Earth has around 1.8 billion years left \u2014 but the biosphere might evolve to survive even longer<\/a><\/p>\n

Life’s Little Mysteries<\/p>\n

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AI is getting better at solving CAPTCHAs. Does that mean CAPTCHAs are obsolete?<\/p>\n

(Image credit: Cosminxp Cosmin via Getty Images)<\/p>\n

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Are you a robot? It used to be a question that only humans could answer \u2014 by clicking on traffic lights or strings of warped and grainy characters, or Completely Automated Public Turing tests to tell Computers and Humans Apart (CAPTCHAs). But what happens now that autonomous artificial intelligence (AI) agents can ace some of these trials without detection? Have they made CAPTCHAs obsolete?<\/p>\n

\u2014If you enjoyed this, sign up for our Life’s Little Mysteries newsletter<\/a><\/p>\n

Medici murder mystery solved<\/p>\n

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Researchers analyzed the remains of brothers Giovanni and Francesco de’ Medici for evidence of malaria.<\/p>\n

(Image credit: Courtesy the University of Pisa)<\/p>\n

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The Medici family ruled Renaissance Tuscany with an iron fist, fulfilling their ruthless ambitions with methods so underhand that the name of their most famous advisor, Niccol\u00f2 Machiavelli, became a synonym for skulduggery.<\/p>\n

So, when two brothers from the infamous family died under mysterious circumstances, it was believed for 500 years that they were murdered, possibly by arsenic poisoning. Now, science has revealed the true culprit behind the medieval cold case, and it’s not what we expected.<\/p>\n

Discover more archaeology news <\/p>\n

\u2014Ancient ring discovered underground in Scotland could be a Stonehenge-like monument<\/a><\/p>\n

\u2014500-year-old freeze-dried potato snacks discovered in Inca storage room in Peru<\/a><\/p>\n

\u20142,000-year-old scrolls buried by Mount Vesuvius eruption finally deciphered with help from AI<\/a><\/p>\n

Also in science news this week<\/p>\n

\u2014Chinese supercomputer leapfrogs best US machines to be ranked world’s fastest<\/a><\/p>\n

\u2014The hantavirus outbreak is over, WHO declares<\/a><\/p>\n

\u2014Rise in cancer in younger adults may be explained by faster ‘biological aging,’ early study hints<\/a><\/p>\n

\u2014Dead-end bitcoin mining wastes as much energy as Switzerland’s entire hydropower generation capacity<\/a><\/p>\n

\u2014CERN shuts down Large Hadron Collider until 2030, upgrading the atom smasher to its most powerful form yet<\/a><\/p>\n

\u2014Scientists figured out how to shrink huge ultrafast lasers so they fit on a tiny chip \u202a\u202a\u2014\u202c the ‘holy grail’ of the field<\/a><\/p>\n

Science Spotlight<\/p>\n

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Japan has rolled out a creative strategy to rein in antibiotic resistance. Should the U.S. follow suit?<\/p>\n

(Image credit: Nicoletta Lanese (left and right panels); Getty Images (central panel); edited by Live Science)<\/p>\n

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Antibiotic resistance is a growing threat in the U.S., with more than 2.8 million Americans developing antimicrobial-resistant infections each year. The solutions to this worrying trend can be very complex\u2014 such as moving agricultural systems away from their overreliance on antibiotics, or preventing the rapid spread of superbugs through international travel.<\/p>\n

But stopping doctors from overprescribing antibiotics is one of the easiest strategies in the battle against this “silent pandemic<\/a>.” And it turns out that Japan has already fought it with some success, driving down antibiotic overuse with an innovative new policy. To investigate further and ask what notes the U.S. should be taking, Live Science’s health editor Nicoletta Lanese<\/a> visited Japan and reported back on their investigation<\/a>.<\/p>\n

Something for the weekend<\/p>\n

If you’re looking for things to keep you busy over the weekend, here are a smattering of our best expert opinion pieces, alongside a crossword, an interview and a quiz, that we published this week.<\/p>\n

\u2014 Computer scientists are rushing to tame AI’s voracious appetite for energy<\/a> [Opinion]<\/p>\n

\u2014‘It’s more than a hope, it’s a guarantee’: The Vera C. Rubin Observatory’s 10-year movie of the universe is about to ‘blow our minds,’ chief scientist Tony Tyson says<\/a> [Interview]<\/p>\n

\u2014Live Science crossword puzzle #50: Longest-serving president in US history \u2014 1 across <\/a>[Crossword]<\/p>\n

\u2014Ancient empires quiz: Can you match these lands to the historical powers that ruled them?<\/a> [Quiz]<\/p>\n

Science photo of the week<\/p>\n

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The ‘bow and arrow’ galaxy shows its highly unusual shape in radio wavelengths.<\/p>\n

(Image credit: Hota, Dabhade and Ghosh et al and the RAD@home Collaboratory)<\/p>\n

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If you ask me, it looks more like a rusty anchor, or a blurry deep-sea fish. But whichever way you see it, the newly discovered “bow and arrow” galaxy \u2014 or, more formally, the RAD-Bow-And-Arrow Radio Galaxy (RAD-BAARG) \u2014 is an oddball unlike any other recorded.<\/p>\n

The galaxy’s unique structure is likely the result of gravity, which is warping RAD-BAARG into a funhouse mirror version of its former self as it falls into a nearby galaxy cluster. A shock front from this plunge surrounds the galaxy as it moves through hot gas.<\/p>\n

Follow Live Science on social media<\/p>\n

Want more science news? Follow our Live Science WhatsApp Channel<\/a> for the latest discoveries as they happen. It’s the best way to get our expert reporting on the go, but if you don’t use WhatsApp we’re also on Facebook<\/a>, X (formerly Twitter)<\/a>, Flipboard<\/a>, Instagram<\/a>, TikTok<\/a>, Bluesky<\/a> and LinkedIn<\/a>.<\/p>\n

TOPICS<\/p>\n


\nScience news this week
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