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Webb telescope observes violence around Milky Way's central black hole
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Searching the entire sky for the secrets to our universe
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As soon as the end of February, NASA and the Jet Propulsion Laboratory will launch a new telescope into orbit around the Earth called SPHEREx. Its goal is to examine nothing less than the essential ingredients of life in our galaxy and the origin of the universe itself.
SPHEREx will join the ranks of other space telescopes, filling in a crucial gap by detecting infrared light with wavelengths too long to see with the naked eye. It's an important addition because no single instrument can fully perceive the universe and its contents.
The new telescope's infrared detectors have to be kept super cold, so the instrument is housed inside three concentric cones atop a set of mirrors that protect it from the sun's energy and the spacecraft's own heat. The whole thing looks like a giant funnel.
"It weighs a little less than a grand piano and uses about 270, 300 watts of power — less than a refrigerator," said Beth Fabinsky, SPHEREx's deputy project manager, at a press conference in late January.
This shark pup was born in a habitat without any males. How did that happen?
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A Louisiana aquarium has a new star — and a mystery — on its hands after a baby shark was born in a habitat without any males.
The Shreveport Aquarium announced last week that Yoko the swell shark — named for "Onyoko," the Chumash word for shark — hatched on Jan. 3, about eight months after her egg was first discovered in a tank with only female inhabitants.
Not only that, it said, but its team "determined that the two female sharks present in the tank had not been in contact with a male in over 3 years."
"This situation is incredible and shows the resilience of this species," Greg Barrick, the aquarium's curator of live exhibits, said in the release. "It really proves that life ... uh ... finds a way."
Is it a miracle, a medical mystery or more? Scientists have two main theories.
Fast radio burst detected in 'dead' galaxy raises questions about mysterious signals
Fast radio bursts, strong pulses of energy detected in radio-wave frequencies, may be a common phenomenon in the cosmos, but their enigmatic origins are something astronomers are only beginning to understand.
Take, for instance, one such fast radio burst astronomers recently tracked to the distant outskirts of a long-dead galaxy.
Based on what scientists thought they knew about fast radio bursts, referred to in astronomy as FRBs, this type of galaxy should not contain the kind of star long thought to produce such bursts. The surprising source of the repeating burst has baffled astronomers, who haven't considered that regions in which no stars are forming could produce such a
Luca is the progenitor of all life on Earth. But its genesis has implications far beyond our planet
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Luca – short for the last universal common ancestor, the progenitor of all known life on Earth – seems to have been born 4.2bn years ago. Back then our planet was no Eden but something of a hell on Earth: a seething mass of volcanoes pummelled by giant meteorites, and having recovered from a cosmic collision that blasted the world apart and created the moon from some of the fragments. There is good reason why the geological aeon before 4bn years ago is called the Hadean, after the Greek god of the underworld Hades.
SpaceX’s Starship test flight ends in failure after spacecraft is destroyed
SpaceX launched its Starship rocket on its latest test flight Thursday, but the spacecraft was destroyed following a thrilling booster catch back at the pad.
Elon Musk’s company said the spacecraft’s six engines appeared to shut down one by one, with contact lost just 8min 30sec into the flight.
“We did lose all communications with the ship – that is essentially telling us we had an anomaly with the upper stage,” SpaceX communications manager Dan Huot said, confirming minutes later that the ship was lost.
The spacecraft was supposed to soar across the Gulf of Mexico from Texas on a near loop around the world similar to previous test flights. SpaceX had packed it with 10 dummy satellites for practice at releasing them. It was the first flight of this new and upgraded spacecraft.
Mysterious flashing seen near supermassive black hole. Astronomers have an idea what it is
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A cosmic mystery surrounding a black hole some 270 million light-years from the Milky Way is deepening.
For years, astronomers have been perplexed by this particular supermassive black hole, a behemoth as large as a million suns in a distant galaxy. In 2018, astronomers observed that the black hole’s corona – a cloud of whirling, white-hot plasma – suddenly disappeared before reassembling months later.
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