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CNN —Astronomers have discovered a “super-Earth,” or a world larger than our planet, orbiting a star about 137 light-years away. The super-Earth exoplanet, known as TOI-715b, orbits a red dwarf star that is cooler and smaller than our sun. “This discovery is exciting as it’s the first super-Earth from TESS to be found within the conservative habitable zone,” Dransfield said. If the Earth-size planet is confirmed, it will become the smallest planet yet that TESS has found in a habitable zone. TOI-715b’s star has only shown a couple of flares within the past two years and isn’t considered active, making it an old star, Dransfield said.
Persons: TESS, Georgina Dransfield, Dransfield, James Webb, Webb, , isn’t, PLATO, ” Dransfield, Organizations: CNN —, Royal Astronomical Society, Researchers, University of Birmingham’s School of Physics, Astronomers, James Webb Space Telescope Locations: United Kingdom
CNN —Astronomers have uncovered additional evidence that one of Saturn’s smallest moons, Mimas, is hiding a global ocean beneath its icy surface. Discovered in 1789 by English astronomer William Herschel as a tiny dot near Saturn, Mimas was first imaged from space by the Voyager probes in 1980. Craters cover the surface of Mimas, but the largest one is 80 miles (about 130 kilometers) across and causes the moon to resemble the Death Star from the “Star Wars” films. But Saturn’s Enceladus appears younger because active geysers have contributed to resurfacing, or depositing of new, fresh material on that moon’s surface. “Mimas certainly demonstrates that moons with old surfaces can be hiding young oceans, which is pretty exciting,” Rhoden said.
Persons: Mimas, Cassini, William Herschel, Observatoire, Dr, Valéry Lainey, Lainey, , Nick Cooper, Saturn, ” Lainey, , Triton, Frédéric, ” Cooper, “ Lainey, Matija Ćuk, Alyssa Rose Rhoden, Rhoden Organizations: CNN —, Saturn, Voyager, , Physical, Chemical Sciences, Queen Mary University of London, NASA, Clipper, SETI Institute, Southwest Research Locations: Paris, California, Colorado
CAPE CANAVERAL, Fla. (AP) — Astronomers have found the best evidence yet of a vast, young ocean beneath the icy exterior of Saturn’s Death Star lookalike mini moon. Barely 250 miles (400 kilometers) in diameter, the heavily cratered moon lacks the fractures and geysers — typical signs of subsurface activity — of Saturn’s Enceladus and Jupiter’s Europa. Photos You Should See View All 45 ImagesThe ocean is believed to fill half of Mimas’ volume, according to Lainey. But at the seafloor, he said the water temperature could be much warmer. Co-author Nick Cooper of Queen Mary University of London said the existence of a “remarkably young” ocean of liquid water makes Mimas a prime candidate for studying the origin of life.
Persons: Cassini, “ Mimas, , Valery Lainey, Alyssa Rose Rhoden, Nick Cooper, William Herschel, Mimas Organizations: , Paris Observatory, Star, “ Star, Research, Queen Mary University of London, Associated Press Health, Science Department, Howard Hughes Medical Institute’s Science, Educational Media Group, AP Locations: CAPE CANAVERAL, Fla
Brown dwarfs are some of the most unusual and mysterious objects in space. Brown dwarf W1935 may have aurora at its poles created by a volcanic moon that's orbiting the failed star. "For your typical brown dwarf just traversing the galaxy in solitude, your brown dwarf is very mysterious. NASAFaherty and her team suspected a different kind of companion could be at work: an active moon. Whatever the reason may be, it takes very sensitive tools to detect brown dwarfs in the first place.
Persons: , Jackie Faherty, James Webb, Brown, Faherty, Austin Rothermich, Rune Stoltz Bertinussen, NASA Faherty, Webb Organizations: Service, Telescope, Business, NASA, ESA, CSA, American Museum of, American Astronomical Society, City University of New, Reuters Locations: City University of New York, Tromso, Norway
CNN —The disappearing “magic islands” on Saturn’s largest moon Titan have intrigued scientists since NASA’s Cassini mission spotted them during flybys a decade ago. Titan, larger than both our moon and the planet Mercury, is the only moon in our solar system with a thick atmosphere. The sea is 50% larger than Lake Superior and is made up of liquid methane, ethane and nitrogen. An artist's illustration shows a lake at the north pole of Saturn's moon Titan, including raised rims spied by Cassini. Liquid methane slowly seeps into the frozen clumps, eventually causing them to disappear from view.
Persons: NASA’s, Cassini, Xinting Yu, , Yu, Stéphane Le Mouélic, Virginia Pasek, ” Yu, Organizations: CNN, NASA, Titan, JPL, Caltech, University of Texas, Research, Johns Hopkins Applied Physics Laboratory Locations: Ligeia Mare, Superior, San Antonio, Virginia
AdvertisementAdvertisementElon Musk is expecting SpaceX's Starship mega-rocket to take to the skies again, months after the ship blew up on its first-ever attempt to reach orbit. SpaceX's Starship stacked atop its Super Heavy booster near Brownsville, Texas. Originally teased under the name Mars Colonial Transporter, Starship's first rocket design was called "Interplanetary Space Transporter" as SpaceX realized its ambitions went beyond transport to Mars. 2019: Starhopper reaches 492 ft in flightSpaceX's Mars Starship prototype "Starhopper" hovers over its launchpad during a test flight in Boca Chica Trevor Mahlmann/ReutersThe first Starship prototype wasn't really a Starship at all. The first full-fledged Starship prototype to really catch some air was called Starship serial no.
Persons: Elon Musk, , Musk, Gwynne Shotwell, BFR, Boca Chica Trevor Mahlmann, Twitter Musk, SN15, Starship's, Ashlee Vance Organizations: Elon, SpaceX, Service, Mars, Reuters, Super, Boca Chica, Raptor, Twitter, Mk1, Popular Mechanics, ambitiously, Engineers Locations: Brownsville , Texas, Starhopper, Boca Chica , Texas
Four scientists told Insider his plan is bad for technical, scientific, and ethical reasons. Yes, experts agree we might want to settle other worlds, but Mars might not be our best bet, at least not now, four scientists told Insider. SpaceX's first priority is "establishing a cargo route to Mars," Musk told the Washington Post in 2016. From Mars, Musk told the IAC, people could go to the asteroid belts, the moons of Jupiter and Saturn, and the Kuiper belt. AdvertisementAdvertisementEssentially, terraforming Mars would involve melting its polar ice caps, which would release CO2 reserves.
Persons: Elon Musk, , Ray Bradbury's, Arnold Schwarzenegger, Christopher Edwards, He's, Musk, Refugio Ruiz Musk's, they'd, he's, Edwards, PATRICK T, FALLON, there's, Bruce Jakosky, Jakosky, Andrew Coates, Coates, Mars, terraformed, Alexander Gerst, Rachael Seidler, Refugio Ruiz, Seidler, Jeff Bezos, Buzz Aldrin, Chris McKay, " Edwards, that's Organizations: Service, Northern Arizona University, SpaceX, Mars SpaceX, International Astronautical, Washington Post, IAC, Elon Musk, NASA, Getty, Mars, ESA, University College London's, Science, University of Florida, AP, JPL, Caltech, SETI, Center for Strategic, International Studies, NASA's Ames Research Center Locations: Texas, Mars
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
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
NASA’s Webb telescope image shows details of Saturn
  + stars: | 2023-07-04 | by ( Kristen Rogers | ) edition.cnn.com   time to read: +3 min
CNN —Astronomers have discovered surprising details about Saturn’s atmosphere, using a new image captured by NASA’s James Webb Space Telescope. In the image, Saturn itself appears extremely dark due to the near-total absorption of sunlight by methane gas. The image was taken with Webb’s Near-Infrared Camera, known as NIRCam, as part of a Webb program that involves several exceptionally deep exposures of Saturn, according to NASA. This latest detailed image comes just weeks after the Webb telescope spotted a record-breaking water plume erupting from Saturn’s moon Enceladus, which feeds Saturn’s diffuse E ring, according to NASA. In the future, additional and deeper exposures from Webb will help astronomers examine fainter rings around Saturn, according to NASA.
Persons: NASA’s James Webb, Webb, , Organizations: CNN —, NASA’s James Webb Space, NASA, Cassini, Webb, Saturn, Hubble
The future of medicine may lie in space
  + stars: | 2023-06-17 | by ( Katie Hunt | ) edition.cnn.com   time to read: +6 min
Days after I got my first taste of working at a lab bench, a company set forth to prove scientific research can be successfully done in orbit without any humans present. Look upVarda Space Industries plans to use a small capsule, shown in the rendering above, to conduct pharmaceutical research in space. Varda Space industriesThe future of medicine may take flight in space. Unearthed in Ethiopia in 1974 and representing 40% of a skeleton, the remains revealed an early human relative who lived millions of years before Homo sapiens. Meanwhile, other, more recent fossil discoveries are shaking up what we know about early human migration.
Persons: Varda, Lucy, Dave Einsel, paleoanthropologist Dr, Ashleigh L.A, Wiseman, waddle, Frank Postberg, Jochen Brocks, , Ashley Strickland, Katie Hunt Organizations: CNN, Logan Science Journalism, Marine Biological, Space Industries, Research, British Antarctic Survey, Sky, University of Cambridge, ATP, Freie Universität Berlin, Australian National University, CNN Space, Science Locations: Woods Hole , Massachusetts, California, Antarctica, Weddell, Ethiopia, Barney Creek, Northern Australia, Australia, New England
The discovery was based on data collected by NASA's Cassini spacecraft, the first to orbit Saturn, during its 13-year landmark exploration of the gaseous giant planet, its rings and its moons from 2004 to 2017. The same team previously confirmed that Enceladus' ice grains contain a rich assortment of minerals and complex organic compounds, including the ingredients for amino acids, associated with life as scientists know it. Another is Jupiter's larger moon Europa, which also is believed to harbor a global ocean of liquid water beneath its icy surface. "This key ingredient could be abundant enough to potentially support life in Enceladus' ocean," said co-investigator Christopher Glein, a planetary scientist at Southwest Research Institute in San Antonio, Texas. "Whether life could have originated in Enceladus' ocean remains an open question," Glein said.
Persons: NASA's Cassini, Read, Frank Postberg, Cassini, Christopher Glein, Glein, Steve Gorman, Lisa Shumaker Organizations: NASA's, Nature, NASA's Jet Propulsion Laboratory, JPL, Free University, Southwest Research Institute, Thomson Locations: German, Los Angeles, Berlin, Europe, Japan, San Antonio , Texas
CNN —A key chemical building block of life has been found on Saturn’s moon Enceladus. An ocean exists beneath the thick, icy surface of Enceladus, and plumes of material regularly release from geysers at the moon’s south pole. “Previous geochemical models were divided on the question of whether Enceladus’ ocean contains significant quantities of phosphates at all,” Postberg said. “This key ingredient could be abundant enough to potentially support life in Enceladus’ ocean; this is a stunning discovery for astrobiology.”Some of the additional ocean world moons around Jupiter and Saturn include Europa, Titan and Ganymede. Although the building blocks of life and conditions for habitability exist on Enceladus, no actual life has been detected yet.
Persons: , Frank Postberg, ” Postberg, Fabian Klenner, , Postberg, Christopher Glein, Cassini, Linda Spilker, Spilker, ” Spilker, ” Glein, ” “, Nozair Khawaja, Mikhail Zolotov, Zolotov Organizations: CNN, Cassini, NASA, JPL, Space Science, Freie Universität, ATP, University of Washington, Southwest Research Institute, Clipper, Jet Propulsion Laboratory, Freie Universität Berlin, Arizona State University Locations: Freie Universität Berlin, San Antonio , Texas, Europa, Pasadena , California
Enceladus — the sixth-largest of Saturn’s 146 moons — has a liquid ocean with a rocky floor under its bright, white and frosty surface. They found them using data from Cassini, a joint NASA-European orbiter that concluded its study of Saturn, its rings and moons in 2017. The results, which add to the prospect that Enceladus is home to extraterrestrial life, were published on Wednesday in the journal Nature. Phosphorus is a key ingredient in human bones and teeth, and scientists say it is the rarest bio-essential ingredient in the cosmos. Planetary researchers had previously detected the other five key elements on Enceladus: carbon, hydrogen, nitrogen, oxygen and sulfur (the last of which has been tentatively detected).
Persons: , Frank Postberg Organizations: NASA, European, Saturn, Free University of Berlin
CNN —A record-breaking water plume erupted from Saturn’s moon Enceladus, and the James Webb Space Telescope was watching when it occurred. The geyser-like plumes release water vapor, organic chemicals and ice particles into space. But the plume witnessed by the Webb telescope spanned more than 6,000 miles (9,656 kilometers), which is nearly the distance between Los Angeles and Buenos Aires, Argentina, according to a NASA release. The James Webb Space Telescope captured a a water vapor plume jetting from the south pole of Enceladus. The inset image, taken by the Cassini orbiter, shows how small Enceladus appears compared with the water plume.
Persons: James Webb, Cassini, , Webb, . Villanueva, , Geronimo Villanueva, ” Villanueva, , NASA’s, Stefanie Milam, we’ve Organizations: CNN, NASA, James Webb Space, Cassini, ESA, CSA, Goddard Space Flight, Saturn, Clipper, NASA Goddard Space Flight Locations: Los Angeles, Buenos Aires, Argentina, Greenbelt , Maryland
NASA's Webb Telescope revealed just how giant the water plumes shooting out of a Saturn moon are. The water gushes 6,000 miles, or about twice the length of the US, from the moon called Enceladus. NASA/JPL-Caltech/SSIBut the James Webb Space Telescope is the most powerful observatory ever launched into space. A water vapor plume jetting from the southern pole of Saturn’s moon Enceladus, as captured by NASA’s James Webb Space Telescope. "It was just so shocking to detect a water plume more than 20 times the size of the moon."
Persons: NASA's, , James Webb, Cassini, Webb, NASA’s James Webb, Geronimo Villanueva, " Villanueva, Leah Hustak, Saturn Organizations: Service, NASA, JPL, Caltech, SSI, NASA’s James Webb Space Telescope, ESA, CSA, Goddard Space Flight Locations: Los Angeles , California, Buenos Aires, Argentina, Angeles, San Francisco
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.
An astronomer's animation reveals how far the average person could throw a ball on different worlds. On Pluto, your baseball could clear the Great Pyramid of Giza. Watch a ball throw on each planet in our solar system, plus Pluto and the moon, below. At just two-thirds the diameter of our moon, Pluto has such weak gravity that your baseball could clear the 455-foot-tall Great Pyramid of Giza — with room to spare. The video plays out in "real time," showing how long each ball throw would take, O'Donoghue said.
Enceladus, unul dintre sateliții lui Saturn, ar putea avea curenți oceanici similari cu cei de pe PământPotrivit unei noi analize a stratului de gheață care acoperă oceanele globale ale lui Enceladus, curenți foarte similari cu cei de Pământ par să curgă pe acolo. Asta ar însemna că oceanele satelitului lui Saturn ar putea să nu fie omogene până la urmă. Combinația de apă lichidă și fisuri în gheață i-a ajutat pe oamenii de știință să înțeleagă modul în care Enceladus funcționează. Mai știm și că apele de pe Enceladus sunt sărate. De asemenea, mai știm și că, pe Terra, curenții oceanici joacă un rol în distribuirea de nutrienți.
Persons: Saturn, Cassini, Soare ., gheizere Organizations: Enceladus, Saturn, Cassini Locations: California, Caltech
Oamenii de știință cercetează posibilitatea ca sateliții lui Uranus să aibă oceane subterane „secrete”, în încercarea lor de a găsi lumi care ar putea găzdui viață extraterestră, relatează The Independent. Aceste luni prezintă dovezi ale criovulcanismului – fenomen care se petrece atunci materialul lichid vaporii sunt prinți sub suprafața unui corp ceresc și îngheață datorită temperaturilor scăzute. I magini le trimise de nava spațială Voyager 2 în 1986 arată, pe acești sateliți, creste, văi și dune, toate acestea putând proveni din oceane subterane. „Marea întrebare este: Unde sunt mediile locuibile în sistemul solar?” Europa și Enceladus „ne fac pe mulți să ne întrebăm dacă există mai mulți sateliți care, deși sunt mici, ar putea avea o climă mai caldă”, a spusBenjamin Weiss, cercetător la Institutul de Tehnologie din Massachusetts. Oamenii de știință au calculat puterea câmpului magnetic al lui Uranus și impactul acestuia asupra oricăror oceane s-ar ascunde sub suprafața lunilor sale - aceeași tehnică pe care NASA a folosit-o pentru a confirma prezența oceanului de pe Europa și, de asemenea, pe una din celelalte luni ale lui Jupiter, Callisto.
Persons: Uranus, Miranda, Ariel, Oberon, Jupiter, Weiss, Callisto Organizations: Independent, Saturn, Voyager, NASA Locations: Europa, Enceladus, Massachusetts
Cercetătorii cred că Miranda, Ariel, Umbriel, Titania și Oberon, cei mai mari cinci sateliți ai lui Uranus, ar fi primii candidați pentru investigații, datorită asemănărilor lor cu Europa și Enceladus, satelții lui Jupiter și Saturn, scrie digi24.ro. Europa a fost mult timp văzută ca un posibil candidat pentru a găzdui viață extraterestră în sistemul nostru solar, dar trecerea prin crusta groasă de gheață de pe suprafața sa reprezintă o provocare pentru oamenii de știință care speră să ajungă la ocean și să-l studieze mai bine. Aceste luni prezintă dovezi ale criovulcanismului – fenomen care se petrece atunci materialul lichid vaporii sunt prinți sub suprafața unui corp ceresc și îngheață datorită temperaturilor scăzute. Imaginile trimise de nava spațială Voyager 2 în 1986 arată, pe acești sateliți, creste, văi și dune, toate acestea putând proveni din oceane subterane. „Marea întrebare este: Unde sunt mediile locuibile în sistemul solar?” Europa și Enceladus „ne fac pe mulți să ne întrebăm dacă există mai mulți sateliți care, deși sunt mici, ar putea avea o climă mai caldă”, a spusBenjamin Weiss, cercetător la Institutul de Tehnologie din Massachusetts.
Persons: Miranda, Ariel, Oberon, Uranus, Jupiter, Weiss, Callisto Organizations: Saturn, Voyager, NASA Locations: Europa, Enceladus, Massachusetts
În linii mari, acestea sunt: apă lichidă, cel puţin o sursă de energie şi o serie de elemente şi molecule utile din punct de vedere biologic. Oamenii de ştiinţă au identificat patru lumi, planete şi sateliţi, care prezintă unele dintre elementele necesare vieţii, notează Science AlertMarte este una dintre cele mai asemănătoare planete cu Pământul din Sistemul Solar. EnceladusLa fel ca Europa, Enceladus este o lună acoperită de gheaţă şi cu un ocean subteran de apă lichidă. TitanTitan este cea mai mare lună a lui Saturn şi singura lună din sistemul solar cu o atmosferă substanţială. Observaţiile radar au detectat prezenţa râurilor şi lacurilor de metan lichid şi etan şi, eventual, prezenţa criovulcanilor, caracteristicile acestora sunt asemănătoare vulcanilor de pe Pământ, cu precizarea că erup apă lichidă şi nu lavă.
Persons: Venus, Marte, Galileo Galilei, Jupiter, Saturn Organizations: Alert, Saturn, Titan Titan, Titan Locations: Europa, Enceladus
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