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Live Science crossword puzzle #25: Ancient hominin species famous for their 'upright' posture — 11 acrossScience crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Giant sunspot that triggered recent solar 'superstorm' shot out nearly 1,000 flares and a secret X-rated explosion, record-breaking study revealsThe massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar flares, including a hidden X-class outburst, a new paper reveals. The study sets a record for the longest continuous observation of a single active region on our home star.
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Orbiting satellites could start crashing into one another in less than 3 days, theoretical new 'CRASH Clock' revealsResearchers have proposed a theoretical timepiece, dubbed the "CRASH Clock," which tells us how quickly satellites would start colliding if they lost the ability to avoid each other, such as during a powerful solar storm. And its value is rapidly decreasing.
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Advanced alien civilizations could be communicating 'like fireflies' in plain sight, researchers suggestA new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The thought experiment suggests that we need to avoid human biases in our search for extraterrestrial life.
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The moon has been secretly feasting on Earth's atmosphere for billions of yearsA new study reveals that tiny fragments of Earth's atmosphere are transported to and absorbed by the moon via gusts of solar wind and our planet's magnetic field, upending a 20-year-old theory based on NASA's Apollo lunar samples.
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Submerged sandbanks shine like underwater auroras in astronaut's view of the BahamasEarth from space A 2016 astronaut photo of the Bahamas shows a series of luminous, rippling sandbanks partly carved out by a coral reef. The image also reveals subtle differences in the ocean's surface caused by a steep, hidden ocean drop-off.
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Tractor beams inspired by sci-fi are real, and could solve the looming space junk problemResearchers are developing a real-life tractor beam, with the goal of pulling defunct satellites out of geostationary orbit to alleviate the space junk problem.
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See the exact point where a glacier, a lake and a river 'touch' in ArgentinaEarth from space A 2021 astronaut photo shows a triple valley system in Argentina's Los Glaciares National Park where a massive climate-resilient glacier, a pristine turquoise lake and a murky green "river" come together at a single point.
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Rare dusting of snow covers one of the driest place on Earth and shuts down massive radio telescopeEarth from space A satellite photo from July shows intricate snowy stripes painted across the Atacama Desert in Chile. The icy weather temporarily put the Atacama Large Millimeter/submillimeter Array (ALMA) observatory into "survival mode."
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Best space photos of 2025An alien comet, a Martian volcano, a man’s fall from the sun and a groundbreaking telescope’s first images: Here are the most jaw-dropping space photos of 2025.
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Live Science crossword puzzle #24: Elemental particle associated with light — 11 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Interstellar comet 3I/ATLAS is rapidly moving away from us. Can we 'intercept' it before it leaves us forever?3I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object.
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Spiders on Jupiter? Scientists uncover secret origins of arachnid-like 'demon' lurking on gas giant's moon.A new study reveals the likely origin of a mysterious spider-like pattern first spotted on Jupiter's moon Europa in 1998. The finding could have implications for a NASA spacecraft en route to the frozen world.
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City-size 'cosmic butterfly' carved into Mars' surface contains traces of ancient waterThe European Space Agency has released new images of a rare "butterfly" crater on the Red Planet. The bug-like structure sports a pair of smooth, rocky wings, which were likely "fluidized" by buried Martian ice.
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Deep snow blanket transforms Yellowstone Lake into a giant white voidEarth from space A 2022 astronaut photo shows a thick blanket of snow covering Yellowstone Lake, transforming the frozen body of water into a featureless white void. But below the ice lie some of Earth's hottest hydrothermal vents.
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Live Science crossword puzzle #23: Distance around the edge of a circle — 6 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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'Necessary for the future of humankind': Who was honored at the first-ever Global Space Awards?The winners of the inaugural Global Space Awards were recently announced at a star-studded ceremony at London's Natural History Museum. The event championed innovation and sustainability, while also celebrating the life of a late NASA astronaut.
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Rare 'sunglint' transforms Alabama River into a giant 'golden dragon'Earth from space A 2023 astronaut photo shows the moment the Alabama River briefly morphed into an undulating golden serpent, similar in shape to a Chinese dragon. This temporary transformation was the result of a rare mirror-like phenomenon known as a "sunglint."
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Live Science crossword puzzle #22: Subatomic particle with a positive charge — 13 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Giant sunspot on par with the one that birthed the Carrington Event has appeared on the sun — and it's pointed right at EarthA massive new sunspot complex, dubbed AR 4294-4296, has emerged on the sun and is facing directly at Earth. The dark patch is on par with the infamous sunspot that birthed the 1859 Carrington Event — but, for now, it's staying quiet.
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Trio of 'black mesas' leftover from Paleozoic era spawn rare sand dunes in the SaharaEarth from space A 2023 astronaut photo shows three dark hills, or mesas, towering above part of the Sahara desert in southern Mauritania. The structures are remnants of a single Paleozoic era formation, and have helped to create a series of striking sand dunes.
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Russia accidentally destroys its only working launch pad as astronauts lift off to ISSThe recent launch of a Soyuz rocket carrying three astronauts to the International Space Station has caused significant damage to Russia's only launch pad capable of sending humans into space.
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Live Science crossword puzzle #21: NASA rover that landed on Mars in 2012 — 16 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Bizarre, UFO-like halo of red light appears over small Italian town — for the second time in 3 yearsAn eerie new photo shows a giant red ring shining above Possagno, near the Italian Alps. The eye-catching image is almost identical to one taken in the same town in early 2023.
