Stars – pressnews

Did other stars reshape Earth’s orbit? Check out these amazing stellar encounters

19Feb

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Did other stars reshape Earth’s orbit? Check out these amazing stellar encounters

[ad_1] Astronomers have uncovered a celestial revelation: stars passing near our solar system have wielded a profound influence on the orbit of Earth as well as those of its its planetary companions. This cosmic dance, detailed in a study titled "Passing Stars as an Important Driver of Paleoclimate and the Solar System's Orbital Evolution" published in The Astrophysical Journal Letters, challenges our understanding of Earth's history and even encompasses shifts in climate.Stellar Perturbations and Climate VariabilityNathan A. Kaib, Senior Scientist at the Planetary Science Institute, leading the research with contributions from Sean Raymond at the Laboratoire d'Astrophysique de Bordeaux, highlights the significance of these stellar perturbations. "Perturbations- a minor deviation in the...

Exploring the unknown: NASA’s UVEX Mission to reveal how galaxies, stars evolve

14Feb

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Exploring the unknown: NASA’s UVEX Mission to reveal how galaxies, stars evolve

[ad_1] NASA is constantly pushing the limits, venturing into the unknown realms of air and space. Their most recent project, the UVEX mission (UltraViolet EXplorer), scheduled for launch in 2030, promises to shed more light on the mysteries of galaxy and star evolution. UVEX's primary mission is to conduct a comprehensive survey of ultraviolet light across the entire sky. But it doesn't stop there. Equipped with advanced technology, the telescope can quickly identify sources of UV radiation in the universe. This capacity is critical for observing events such as the aftermath of gravitational wave-induced neutron star mergers.Moreover, UVEX will house an ultraviolet spectrograph, enhancing its ability to study phenomena such as stellar explosions and the behavior of massive stars. NASA's...

GUSTO telescope to launch on a balloon! This NASA mission will map space between stars in Milky Way Galaxy

19Dec

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GUSTO telescope to launch on a balloon! This NASA mission will map space between stars in Milky Way Galaxy

[ad_1] NASA never fails to amaze with its groundbreaking projects. Currently, NASA scientists and Engineers are gearing up for an extraordinary NASA experiment named GUSTO (Galactic/Extragalactic ULDB Spectroscopic Terahertz Observatory) in Antarctica. According to NASA, this innovative project involves a balloon-borne telescope set to launch "no earlier than December 21” as per NASA. Yes, you read that right, it is a balloon-borne telescope. While it will be no match for the James Webb Space Telescope, It will still be a big cog in the gargantuan NASA machine consisting of land, air and space telescopes. It will launch from the Ross Ice Shelf, near the U.S. National Science Foundation's McMurdo Station research base.Mapping the Milky Way with GUSTOAs explained by NASA, GUSTO's primary ...

NASA’s James Webb Space Telescope discovers a record-breaking tiny Brown Dwarf! Know all about it

15Dec

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NASA’s James Webb Space Telescope discovers a record-breaking tiny Brown Dwarf! Know all about it

[ad_1] James Webb Space Telescope run by NASA has helped scientists discover various mysteries of the cosmic world going as far back in time that is extremely close to the Big Bang itself. In a recent groundbreaking discovery, James Webb Space Telescope has identified the smallest free-floating brown dwarf ever observed. NASA scientists have found this smallest object that can form in a star-like manner. Read here to know all about the newly discovered brown dwarf.What are brown dwarfs?As explained by NASA, Brown dwarfs are celestial objects straddling the line between stars and planets. They are born just like stars. They grow dense enough and then they collapse under their own gravity. However, they never become dense and hot enough for hydrogen fusion and turn into a star. Lead autho...

NASA James Webb Space Telescope snaps ghostly galaxy formed just 900 mn years after Big Bang

5Dec

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NASA James Webb Space Telescope snaps ghostly galaxy formed just 900 mn years after Big Bang

[ad_1] Over the years, NASA's most powerful James Webb Space Telescope has been providing amazing insights on deep space to researchers and astronomers. Now, it has snapped a scary looking star-forming galaxy in deep space which was created millions of years ago. The galaxy was first captured by the Hubble Space Telescope earlier, however, it had disappeared from the images. Then, NASA's Webb telescope catured a faint image of the galaxy when it reappeared. Know more about this ghostly galaxy here.NASA James Webb Space Telescope findingsAccording to research published in The Astrophysical Journal, the dusty galaxy has been named AzTECC71. It is extremely old. In fact, it was formed just 900 million years after the Big Bang. researchers said that the galaxy is producing hundreds of stars...

Aliens will first contact our AI, says expert

19Jun

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Aliens will first contact our AI, says expert

[ad_1] According to Avi Loeb, a renowned scientist from Harvard University, the first contact with extraterrestrials (ET) is likely to occur through artificial intelligence rather than direct interaction with humans. Loeb suggests that aliens may opt to send drones or unmanned vehicles to Earth instead of crewed spaceships, as interstellar travel is a time-consuming process and takes tens of thousands of years, if not more, Daily Star reports.However, artificial intelligence (AI) is lifeless and can stay dormant for as long as required to endure the lengthy journey. In the event of a visit by Aliens, our own AI systems could be employed to decipher and communicate with their AI counterparts. Loeb speculates that there could be an affinity between aliens and AI, potentially leading to a ...

Extraordinary! James Webb Space Telescope snaps explosive star birth after the Big Bang

16May

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Extraordinary! James Webb Space Telescope snaps explosive star birth after the Big Bang

[ad_1] The James Webb Space Telescope, often hailed as a time machine, continues to astound scientists and attract the public with its remarkable discoveries. Recently, astronomers utilised this telescope's cutting-edge technology to observe a distant star-forming galaxy, delving into its intricate structure with unprecedented detail. Discovery of the GalaxyHarnessing the capabilities of NASA's billion-dollar observatory, the James Webb Space Telescope's Orbiter Spacecraft has unveiled the stellar composition of GN20, one of the earliest-known galaxies in the universe. Situated a staggering 12 billion light years away, this captivating discovery represents a luminous and dust-laden star-forming galaxy of extraordinary brilliance. Significance of the GalaxyWhat makes GN20 particularly i...

Beyond our solar system, James Webb Space Telescope snaps ‘Mini Neptune’

13May

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Beyond our solar system, James Webb Space Telescope snaps ‘Mini Neptune’

[ad_1] james webb space telescope, james webb telescope, james webb telescope neptune, neptune, mini neptune, GJ1214b, space science, space science observatory, galaxies, stars, water world. Telescope captures mini neptune.The James Webb Space Telescope, rthe world's leading space science observatory, has made a significant discovery. It has snapped a mysterious planet outside our solar system known as GJ1214b. The telescope's amazing capabilities allow it to peer back into time into the universe's past, reaching as far back as approximately 250 million years and potentially, even up to 100 million years following the Big Bang, when the formation of the first stars and galaxies began. GJ1214b, the planet under scrutiny, possesses a distinctive atmosphere characterised by a steamy enviro...

8Apr

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NASA Astronomy Picture of the Day 8 April 2023: A STAGGERING 100-bn star Spiral Galaxy

[ad_1] NASA's Astronomy Picture of the Day is that of a grand spiral galaxy. It is Messier 100 (M100), which is a large galaxy of over 100 billion stars with well-defined spiral arms that is similar to our own Milky Way Galaxy. The detailed image is captured by NASA's Hubble Space Telescope with the Wide Field Camera 3 and accentuates bright blue star clusters and intricate winding dust lanes which are hallmarks of this class of galaxies while revealing individual stars within the galaxy's prominent spiral arms. NASA says that M100 is a stunning example of a grand-design spiral galaxy.While sharing the image, NASA explained, “One of the brightest members of the Virgo Cluster of galaxies, M100 (alias NGC 4321) is 56 million light-years distant toward the constellation of Berenice's Hair ...

Celestial wings to stellar CORPSE! NASA’s Hubble Telescope captures Butterfly Nebula

23Feb

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Celestial wings to stellar CORPSE! NASA’s Hubble Telescope captures Butterfly Nebula

[ad_1] NASA's Hubble Space Telescope captured an image of the Butterfly Nebula which shows layers of gas being ejected from a star that has exhausted its nuclear fuel. According to a tweet by Hubble, eventually this nebula will fade and leave behind a stellar corpse known as a white dwarf. "This structure may look like a cosmic butterfly unfurling its celestial wings, but there's nothing gentle or delicate about this massive blowout. In Caldwell 69, also cataloged as NGC 6302 and commonly known as the Butterfly or Bug Nebula, layers of gas are being ejected from a Sun-like star that has exhausted its nuclear fuel," NASA informed.The research organisation further informed that the medium-mass stars grow unstable as they run out of fuel, which leads to the dramatic expulsion of material ...