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☆ A planet’s atmosphere is blasted away by a star and Hubble captures it
▼ + stars: | 2023-07-31 | by ( Ashley Strickland | ) edition.cnn.com time to read: +5 min

CNN —The Hubble Space Telescope captured an unexpected observation of a nearby planet that’s having its atmosphere blasted away by energetic outbursts from its star. As the planet is blasted by radiation, its atmosphere heats to the point that it escapes the planet’s gravity and puffs out into space. The planet gets hit with flares, X-rays and stellar wind, or a charged stream of particles released from the star. “This creates a really unconstrained and frankly, scary, stellar wind environment that’s impacting the planet’s atmosphere,” Rockcliffe said. Astronomers will conduct more follow-up observations of the system with Hubble to track how the planet changes in the future.

Persons: Hubble, NASA’s, “ We’ve, ”, Keighley Rockcliffe, “, ’, ” Rockliffe, ” Rockcliffe, Rockcliffe Organizations: CNN, Hubble, Spitzer, Telescope, Keighley, Dartmouth College Locations: Hanover , New Hampshire

☆ Titanium Clouds Engulf This Ultrahot Neptune-like Planet
▼ + stars: | 2023-07-27 | by ( Katrina Miller | More About Katrina Miller | ) www.nytimes.com time to read: +1 min

Astronomers have come across the shiniest planet ever found, a mere 265 light years from our solar system. Shrouded by thick metallic clouds, this world’s temperature reaches a blistering 3,000 degrees Fahrenheit, and it quite likely rains scorching-hot drops of titanium. The find, named LTT 9779 b, was described in a paper published this month in the journal Astronomy & Astrophysics. Nearly five times as big as Earth, it’s one of the few ultrahot, gaseous exoplanets of this size that scientists have discovered. But LTT 9779 b, which sprints around its star once every 19 hours, is midsize — making it one of four or five planets in the so-called Neptune desert, and the only one with an intact atmosphere.

Persons: ”, James Jenkins Organizations: Astrophysics, Diego Portales University, NASA’s Locations: Chile

☆ Rare ‘Trojan’ world may share the same orbit as another planet
▼ + stars: | 2023-07-19 | by ( Ashley Strickland | ) edition.cnn.com time to read: +4 min

CNN —Astronomers may have found a rare “sibling” that shares the same orbit of a Jupiter-like planet around a young star. Two Jupiter-like planets, known as PDS 70b and PDS 70c, are already known to orbit the star. Evidence for Trojans beyond our solar system — specifically Trojan planets — has been sparse until now. The signal suggested a cloud of debris with a mass of about twice that of our moon, which could be a Trojan planet or a planet in formation. A cloud of debris (circled by a yellow dotted line) may be a newly forming planet in the same orbit as the planet PDS 70b.

Persons: ”, Olga Balsalobre, Lucy, “ Exotrojans, Jorge Lillo, Itziar De Gregorio, Monsalvo, “, Ruza, ALMA Organizations: CNN —, Astrophysics, Madrid’s, Astrobiology, IAU, Southern, Science, NASA Locations: ALMA, Chile

☆ A Canadian lake best charts humanity’s impact on Earth
▼ + stars: | 2023-07-15 | by ( Katie Hunt | ) edition.cnn.com time to read: +6 min

Fossils embedded in rock reveal intriguing details about animals, plants and other life-forms that once called Earth home. ConsequencesCrawford Lake in Ontario is the geological site that best reflects a new epoch recognizing the impact of human activity on Earth, said geologists of the Anthropocene Working Group. The Anthropocene Working Group determined in 2016 that the epoch began around 1950 — the start of the era of nuclear testing. The international research group says that Crawford Lake in Ontario best charts humanity’s impact on Earth. Back then, it took 10 hours to relay a single image to Earth — incredibly slow by today’s standards.

Persons: Crawford, they’ve, Amenhotep III, didn’t, Philippe Martinez, Mona Lisa of Egypt, Thais Rabito Pansani, —, Webb, Ashley Strickland, Katie Hunt Organizations: CNN, Conservation, Scientists, MAFTO, Sorbonne University, NASA Mariner, Mariner, NASA Jet Propulsion, CNN Space, Science Locations: Ontario, Brazil, South America, Americas

☆ Webb telescope’s first anniversary image reveals the birth of sunlike stars
▼ + stars: | 2023-07-12 | by ( Ashley Strickland | ) edition.cnn.com time to read: +8 min

CNN —The James Webb Space Telescope has captured a stunning new image of the closest star-forming region to Earth, located 390 light-years away. The release of the image marks the first anniversary since the space observatory began observing the universe. “Webb’s image of Rho Ophiuchi allows us to witness a very brief period in the stellar lifecycle with new clarity. The most powerful telescope ever sent to space, Webb launched on December 25, 2021, and NASA shared its first set of scintillating images on July 12, 2022. Both have served as the targets of other telescopes like the Hubble Space Telescope in the past.

Persons: James Webb, another’s, ”, Klaus Pontoppidan, Webb, “, Bill Nelson, “ Webb, Nicola Fox, Eric Smith, “ Webb’s, Jane Rigby, NASA’s, “ We’ve, we’ve, — Organizations: CNN, Telescope, Telescope Science, NASA, Astrophysics Division, NASA Headquarters, Hubble, NASA’s Goddard Space Flight Locations: Baltimore , Maryland, Greenbelt , Maryland

☆ The Milky Way's shiniest known planet has metal clouds that rain down titanium. Astronomers say it 'shouldn't exist.'
▼ + stars: | 2023-07-12 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +3 min

A planet five times the size of Earth was found to be the shiniest planet outside our solar system. This ultra-hot planet "shouldn't exist" as it is and could be a new class of planet altogether. This planet's hot metal atmosphere is defying astronomers' rules for how planets of this size should behave. Venus, the solar system's shiniest planet, reflects 75% of the sunlight. "We believe these metal clouds help the planet to survive" in these conditions said study author Sergio Hoyer of the Marseille Astrophysics Laboratory.

Persons: LTT9779, Vivien Parmentier, NASA Exoplanet LTT9779, James Jenkins, Ricardo Ramírez Reyes, Exoplanet, It's, Parmentier, Sergio Hoyer Organizations: Service, European Space Agency, ESA, NASA, Diego Portales University, CATA, Universidad, Universidad de Chile, Marseille Astrophysics, Astrophysics Locations: Wall, Silicon, Côte d'Azur, Universidad de, Marseille

☆ Shiniest exoplanet ever found has reflective metal clouds
▼ + stars: | 2023-07-10 | by ( Ashley Strickland | ) edition.cnn.com time to read: +4 min

CNN —An ultrahot exoplanet that zips around its host star every 19 hours is the shiniest exoplanet ever discovered. The scorching world, dubbed planet LTT9779b, has reflective metallic clouds made of silicates and metals like titanium. An artist's illustration shows an exoplanet, called LTT9779b, orbiting its much larger host star. The side of the exoplanet that faces its host star likely reaches 3,632 degrees Fahrenheit (2,000 degrees Celsius). And LTT9779b is so piping hot that it shouldn’t have any clouds, even those made of metal or glass.

Persons: Ricardo Ramírez Reyes, LTT9779b, ”, James Jenkins, Vivien Parmentier, ” Parmentier, “, ” Vivien, Sergio Hoyer Organizations: CNN, European Southern Observatory, Universidad de Chile, Astrophysics, Diego Portales University, Marseille Astrophysics Locations: Chile, Santiago , Chile, Nice, France, Marseille

☆ Ghostly lights paint a new portrait of the Milky Way
▼ + stars: | 2023-07-01 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

Editor’s Note: A version of this story appeared in CNN’s Wonder Theory science newsletter. CNN —The universe is filled with infinite mysteries, and scientists are tackling them, one celestial puzzle at a time. Across the universeAn artist's illustration depicts the Milky Way seen through a neutrino lens, which is shown in blue. National Science FoundationThere is no shortage of scintillating imagery of the Milky Way galaxy — but we’ve never seen it from this perspective. Astronomers used a detector sunk deep into the thick ice of Antarctica to trace “ghost particles” that created a new portrait of the Milky Way.

Persons: James Webb, we’ve, you’ve, exoplanet, Halla, Adam Makarenko, Ashley Strickland, Katie Hunt Organizations: CNN, Virgin Galactic’s, James Webb Space, European Space Agency, . National Science, Schmidt Ocean Institute, Beatles, ”, Keck, —, CNN Space, Science Locations: Antarctica, Costa Rica, Strait, Gibraltar, Spain

☆ Scientists spot a planet that shouldn’t exist
▼ + stars: | 2023-06-28 | by ( Ashley Strickland | ) edition.cnn.com time to read: +4 min

CNN —A Jupiter-like planet located 520 light-years from Earth may be an unlikely survivor after its host star had a temper tantrum. The gas planet is known as 8 UMi b and was named Halla after its initial discovery by Korean astronomers in 2015. The exoplanet orbits a giant star larger than our sun named Baekdu, located in the Ursa Minor, or “Little Bear,” constellation. Halla orbits Baekdu at a distance about half that between the Earth and the sun at 0.46 astronomical units, or 42,759,659 miles (68,815,020 kilometers). While our solar system only has one star, many stars across the universe exist in binary pairs.

Persons: Halla, “, ”, Dan Huber, Marc Hon, ” Huber, Tim Organizations: CNN, Ursa, Australian Research, University of Sydney, Institute for Astronomy, University of Hawaii, Keck Observatory, Halla, Star Wars Locations: South Korea, Manoa, Canada, France, Hawaii, Mauna Kea

☆ Earth-size exoplanet may be covered in volcanoes
▼ + stars: | 2023-05-17 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

Instead, the exoplanet, called LP 791-18 d, is likely covered in volcanoes and may experience eruptions with the same frequency as Jupiter’s moon Io, the most volcanically active place in our solar system, according to researchers. LP 791-18 d is located about 90 light-years from Earth in the Crater constellation, where it orbits a small red dwarf star. And astronomers believe the massive planet LP 971-18 c might be contributing to the newly detected exoplanet’s possible volcanism. As the two objects orbit their star, LP 971-18 c and the newfound exoplanet LP 791-18 d closely pass each other, allowing the gravitational pull of the larger planet LP 971-18 c to tug on planet d and reshape its orbit. The discovery of LP 971-18 d points to the importance of data collected by space telescopes.

☆ Earth-sized alien planet gripped by widespread volcanism
▼ + stars: | 2023-05-17 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

In our solar system, Earth and Venus are volcanically active, as are some of Jupiter's moons. Planets beyond our solar system are called exoplanets. Here, water from the nightside glacier can melt and possibly form liquid surface water. In addition, there is likely volcanism all around the planet, even under the ice on the nightside and possibly under the water near the terminator," Benneke said. The planet is located in the Milky Way about 86 light-years away from our solar system in the direction of the constellation Crater.

☆ Webb Telescope Finds a Star Cloaked in 3 Rings of Ruined Worlds
▼ + stars: | 2023-05-08 | by ( Robin George Andrews | ) www.nytimes.com time to read: +1 min

Fomalhaut, a star just 25 light-years away, is so dazzlingly bright that it blots out the faint light of other stars around it. Stargazers have been enraptured by its secrets for thousands of years. Now, with the help of the James Webb Space Telescope, astronomers have documented evidence that Fomalhaut is a dynamic star wreathed in cosmic chaos. The powerful observatory’s infrared vision is letting astronomers better understand Fomalhaut’s features, including a mysterious ring unlike anything found in our solar system. “It’s the first time we’ve seen such structures in an evolved system.”The findings could contribute to the solution to an existential puzzle: How weird, or ordinary, is our solar system?

☆ Scientists used DNA to unlock who wore a 25,000-year-old pendant
▼ + stars: | 2023-05-06 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

Max Planck Institute for Evolutionary AnthropologyA deer tooth pendant has revealed details about the woman who wore it between 19,000 and 25,000 years ago. The groundbreaking analysis by a team of European researchers marks the first time scientists have successfully isolated ancient human DNA from a Stone Age artifact. Gregory BretonWith large ears and adorable faces, sand cats went viral seven years ago when their kittens were photographed in the wild for the first time. Although smaller than domestic cats, sand cats live in harsh environments with scorching heat, hunt venomous Saharan horned vipers and rely on blood from prey as a source of water. To unravel the many mysteries of sand cats, researchers tracked 22 of the felines that had been fitted with radio collars for four years.

☆ Webb telescope detects mysterious water vapor in a nearby star system
▼ + stars: | 2023-05-02 | by ( Ashley Strickland | ) edition.cnn.com time to read: +5 min

CNN —The James Webb Space Telescope has detected water vapor around a rocky exoplanet that orbits a star located 26 light-years away from Earth. The presence of water vapor could suggest that GJ 486 b somehow has an atmosphere, despite its heat and proximity to the star. “Water vapor in an atmosphere on a hot rocky planet would represent a major breakthrough for exoplanet science. The results from the Webb data analysis pointed to water vapor being present around GJ 486 b. Future observations of the planet using different instruments on the Webb telescope could reveal additional details about the source of the water vapor.

☆ Repeating radio signal leads astronomers to an Earth-size exoplanet
▼ + stars: | 2023-04-04 | by ( Ashley Strickland | ) edition.cnn.com time to read: +5 min

CNN —Astronomers have detected a repeating radio signal from an exoplanet and the star that it orbits, both located 12 light-years away from Earth. The signal suggests that the Earth-size planet may have a magnetic field and perhaps even an atmosphere. The researchers believe the radio signal was created by interactions between the planet’s magnetic field and the star. How strong radio waves occurIn order for the radio waves to be detectable on Earth, they must be very strong, the researchers said. “This research shows not only that this particular rocky exoplanet likely has a magnetic field but provides a promising method to find more.”

☆ Mysterious flying objects across the US probably aren't aliens, but experts believe life is out there. Here are 13 reasons why we haven't made contact yet.
▼ + stars: | 2023-02-13 | by ( Aylin Woodward | Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: 1 min

Even if intelligent aliens aren't flying overhead, though, many experts believe they're out there. Nobel Physics Laureate Didier Queloz speaks during a press conference at the Royal Swedish Academy of Sciences in Stockholm, Sweden. Jonas Ekstromer /TT News Agency via AP"I can't believe we are the only living entity in the whole universe. Queloz had just won the Nobel prize in physics for his discovery of the first exoplanet orbiting a sun-like star. He said that his work has led him to become "absolutely convinced" that humans will detect alien life in the next 100 years.

☆ Fear of complacency costs Alphabet $150 billion
▼ + stars: | 2023-02-09 | by ( Robert Cyran | ) www.reuters.com time to read: +4 min

The market wiped about $150 billion off the $1.2 trillion company’s market capitalization as a result. A day earlier, rival Microsoft (MSFT.O) unveiled and released a version of its search engine loaded with AI that can answer complex questions using multiple sources of information. Microsoft, no small competitor, hopes being better will result in a more competitive search market. On Feb. 7, Microsoft held an event that unveiled new versions of its search engine and web browser that incorporate artificial intelligence. The company has released a version of its Bing search engine using the technology.

☆ Premarket stocks: Welcome to the 'rolling recession' economy
▼ + stars: | 2023-02-09 | by ( Nicole Goodkind | ) edition.cnn.com time to read: +8 min

Yet US manufacturing has likely already contracted into a recession, housing sales have plummeted, tech layoffs keep coming and corporate earnings growth is souring. “We continue to think the economy will suffer from rolling recessions, evidenced by the fact that corporate earnings growth is now entering its downturn,” wrote Sonders in a note on Wednesday. For five straight weeks, the bank’s clients have been big buyers of individual stocks and sellers of ETFs, she wrote. Disney revenue in the quarter rose 8% to $23.5 billion, edging past estimates of $23.4 billion from analysts surveyed by Refinitiv. The company reported revenue of $8.6 billion for the quarter, beating Wall Street’s estimates and marking a 49% increase from the prior year.

☆ Google’s AI chatbot Bard had an inaccurate response in public demo
▼ + stars: | 2023-02-08 | by ( Catherine Thorbecke | ) edition.cnn.com time to read: +3 min

CNN —Google’s much-hyped new AI chatbot tool Bard, which has yet to be released to the public, is already being called out for an inaccurate response it produced in a demo this week. Bard’s blunder highlights the challenge for Google as it races to integrate the same AI technology that underpins Microsoft-backed ChatGPT into its core search engine. In trying to keep pace with what some think could be a radical change spurred by conversational AI in how people search online, Google now risks upending its search engine’s reputation for surfacing reliable information. Like ChatGPT, Bard is built on a large language model, which is trained on vast troves of data online in order to generate compelling responses to user prompts. The executive said AI technology would pave the way for the “next frontier of our information products.”

☆ Whoops: Google's ad for new ChatGPT rival Bard shows the AI chatbot giving an inaccurate answer
▼ + stars: | 2023-02-08 | by ( Britney Nguyen | ) www.businessinsider.com time to read: +3 min

Google recently revealed its experimental AI chatbot, Bard, a rival to OpenAI's viral ChatGPT. In an ad for Bard, the chatbot gives an inaccurate answer to a question about the James Webb Space Telescope. The ad depicts the chatbot giving an inaccurate answer to a question about the James Webb Space Telescope (JWST), Reuters first reported. In the ad, a user asks Bard, "What new discoveries from the James Webb Space Telescope can I tell my 9 year old about?" Shares of Alphabet, Google's parent company, have fallen by over 8% since Google's AI showcase in Paris this morning.

☆ How exoplanet hunters find alien worlds hundreds of light-years away and figure out if they have water
▼ + stars: | 2023-01-12 | by ( Paola Rosa-Aquino | ) www.businessinsider.com time to read: +6 min

In the journal Nature Astronomy, astronomers announced that the two exoplanets — Kepler-138 c and Kepler-138 d — could be made up of mostly water. NASA AmesSince the first worlds outside our solar system were discovered in 1992, astronomers have searched for other planets orbiting sun-like stars. Astronomers have already captured direct evidence of 5,241 planets beyond our solar system, according to NASA's Exoplanet Archive. Water worlds beyond our solar system could be abundant in the universeWorlds rich in liquid water might not be as rare as astronomers previously thought, Piaulet said. But by discovering and studying new worlds, astronomers can hone in on what makes a world habitable beyond a sample size of one — Earth.

There's a new heavy hitter in the hunt for planets beyond our solar system. NASA’s James Webb Space Telescope — the next-generation observatory that has already beamed back some of the clearest and most stunning views of the universe — was used for the first time to confirm the existence of an exoplanet, scientists announced Wednesday. The exoplanet confirmation marks an important milestone for the $10 billion Webb telescope, which launched into space in December 2021 and began science operations less than a year ago. “These first observational results from an Earth-size, rocky planet open the door to many future possibilities for studying rocky planet atmospheres with Webb,” Mark Clampin, director of the astrophysics division at NASA headquarters in Washington, D.C., said in a statement. “Webb is bringing us closer and closer to a new understanding of Earth-like worlds outside our solar system, and the mission is only just getting started.”

The first full-color image released from the next-generation James Webb Space Telescope is the sharpest infrared image of the distant universe ever produced, according to NASA. Space Telescope Science Institut / NASA, ESA, CSA, STScI, Webb ERONASA released the first batch of images from the tennis court-sized observatory to much fanfare in July. The exoplanet HIP 65426 b in different bands of infrared light, as seen from the James Webb Space Telescope. Back to the moonFifty years after the final Apollo moon mission, NASA took key steps toward returning astronauts to the lunar surface. Chinese officials have also said they intend to use the space station for space tourism and commercial space initiatives.

☆ A lost ecosystem revealed in Greenland by oldest environmental DNA
▼ + stars: | 2022-12-10 | by ( Ashley Strickland | ) edition.cnn.com time to read: +5 min

A long time agoAn artist's illustration reconstructs Greenland's unique ecosystem as it existed 2 million years ago. Beth ZaikenScientists in Denmark have found the world’s oldest DNA sequences in sediment from the ice age. The core, taken from northern Greenland, revealed that the polar region was once abundant with plant and animal life 2 million years ago. Mastodons, reindeer, geese, lemmings and hares lived in an ecosystem that was a mix of temperate and Arctic flora and fauna. The fossil includes the head, neck and body together — a rare discovery for the marine reptiles, which didn’t preserve well in one piece.

☆ A year only lasts 17.5 hours on the ‘hell planet’
▼ + stars: | 2022-12-08 | by ( Ashley Strickland | ) edition.cnn.com time to read: +5 min

One year for this planet lasts about 17.5 hours on Earth. A team of researchers used a new tool known as EXPRES, or the EXtreme PREcision Spectrometer, to determine the precise nature of the planet’s orbit. But the hell planet is not the only planet orbiting Copernicus. An illustration shows just how closely the planet Janssen (left), depicted as an orange dot, orbits its host star Copernicus. Once Janssen moved in closer to Copernicus, the hell planet became even hotter.

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