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Keyword: astronomy

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  • Scientists have started steering lightning with lasers – here’s how

    01/25/2023 11:32:29 AM PST · by BenLurkin · 20 replies
    The Conversation ^ | January 20, 2023
    This latest experiment was performed near a telecommunications tower on the Säntis mountain in Switzerland that is frequently struck by lightning - roughly 100 times a year, although the tower itself is protected by a lightning rod. The results from the study found the lightning flowed almost in a straight line near the laser pulses, but the lightning strikes were more randomly distributed when the laser was off. While this study is not the first attempt to direct lightning paths it is the first to show it can be done. The scientists have attributed this to the high power laser...
  • James Webb Space Telescope’s NIRISS Instrument Knocked Offline

    01/25/2023 9:29:05 AM PST · by Red Badger · 11 replies
    Scitech Daily ^ | JANUARY 25, 2023 | By NASA
    Artist conception of the James Webb Space Telescope. Credit: NASA GSFC/CIL/Adriana Manrique Gutierrez On Sunday, January 15, 2023, the James Webb Space Telescope’s Near Infrared Imager and Slitless Spectrograph (NIRISS) experienced a communications delay within the instrument, causing its flight software to time out. The instrument is currently unavailable for science observations while NASA and the Canadian Space Agency (CSA) work together to determine and correct the root cause of the delay. There is no indication of any danger to the hardware, and the observatory and other instruments are all in good health. The affected science observations will be...
  • NASA and DARPA Collaborating on a Nuclear-Powered Rocket for Quick Trips to Mars

    01/25/2023 7:08:39 AM PST · by BenLurkin · 45 replies
    Gizmodo ^ | 01/24/2023 | Kevin Hurler
    One of the bigger questions surrounding NASA’s interest in sending a crewed mission to Mars surrounds the best way to get there, and it appears the agency might have found its answer. NASA announced today that it will be developing a nuclear thermal rocket engine in collaboration with the Defense Advanced Research Projects Agency (DARPA). The collaboration is called DRACO, or Demonstration Rocket for Agile Cislunar Operations, and it’s expected to reduce the travel time it takes to get astronauts to Mars—and potentially more distant targets in deep space. According to a press release, NASA will lead technical development of...
  • Newly discovered asteroid seen approaching Earth

    01/25/2023 9:52:27 AM PST · by Red Badger · 83 replies
    Space ^ | January 25, 2023 | Staff
    Asteroid 2023 BU imaged by the Virtual Telescope as it approached Earth in January 2023. (Image credit: Virtual Telescope Project) Wednesday, January 25, 2023: A newly discovered asteroid that will pass very close to Earth on Friday has been photographed by an Italian astronomer as it makes its approach. The space rock, called 2023 BU, is only about 13 to 30 feet (4 to 9 meters) wide, and was discovered last Saturday (Jan. 21) by prolific Crimea-based astronomer and telescope builder Gennadiy Borisov (the same man who discovered the first interstellar comet, which now bears his name, Borisov, in 2018)...
  • Monster Space Rock in Antarctica Is Among The Largest Found in 100 Years

    01/20/2023 11:45:47 AM PST · by Red Badger · 29 replies
    Science Alert ^ | 20 January 2023 | DAVID NIELD
    Large Antarctica meteorite The large meteorite that's been recovered. (Maria Valdes) ******************************************************************* Antarctica has a lot going for it when it comes to meteorite hunting. The dark rocks stand out against the icy landscape. Its dry climate keeps weathering to a minimum. And even when meteorites sink into the ice they are often returned to the surface by the churning of the glaciers. In spite of these ideal conditions, finding sizeable chunks of space rock is rare. A group of researchers have just returned from the ice-covered continent with five new meteorites that include an unusually large specimen. The big...
  • A New Frontier: NASA’s Webb Space Telescope Confirms Existence of Earth-Sized Rocky Exoplanet!

    01/18/2023 11:32:56 AM PST · by Red Badger · 32 replies
    Scitech Daily ^ | JANUARY 17, 2023 | By SPACE TELESCOPE SCIENCE INSTITUTE
    Exoplanet LHS 475 b and Its Star This illustration reflects that exoplanet LHS 475 b is rocky and almost precisely the same size as Earth based on new evidence from NASA’s James Webb Space Telescope. The planet is only a few hundred degrees warmer than our home planet. The planet whips around its star in just two days, far faster than any planet in the solar system, but its red dwarf star is less than half the temperature of the Sun. Researchers will follow up this summer with another observation with Webb, which they hope will allow them to definitively...
  • Space Probes Sent by Aliens Could Arrive in Reverse. Here's Why.

    01/17/2023 10:02:28 AM PST · by BenLurkin · 72 replies
    sciencealert.com ^ | 13 January 2023 By, | EVAN GOUGH
    Imagine if a robotic probe arrived in our Solar System, sent by an ETC. They detected us and sent their probe to introduce themselves and learn more about us. Then imagine our sensors detect another incoming probe from the same place as the previous one. Imagine our surprise when we retrieve it, and begin to study it, only to find that it's not as advanced as the previous one and contains older information and messages than the first one. That's exactly what might happen, according to Graeme Smith. Smith is a professor and an astronomer at the Department of Astronomy...
  • Now SPACE is racist! Woke Colorado astrophysics professor moans her field is riddled with 'white supremacy' and sexism - with colleagues using 'hypermasculine' and 'violent' language to describe the cosmos

    01/16/2023 9:35:47 PM PST · by artichokegrower · 78 replies
    Daily Mail ^ | , 17 January 2023 | By NEIRIN GRAY DESAI
    A Colorado astrophysicist has claimed her field is steeped in white supremacy and sexism because 'hypermasculine' and 'violent' language is used to describe stars. Natalie Gosnell, an assistant professor at Colorado College, takes an unconventional approach to physics by comparing stars with humans to turn science into an art. In an interview with the college newspaper she claimed she has struggled to overcome a division between art and science that is rooted in 'systemic racism
  • Astronomy Picture of the Day - Where Your Elements Came From

    01/08/2023 5:50:22 PM PST · by MtnClimber · 24 replies
    APOD.NASA.gov ^ | 8 Jan, 2023 | Image Credit & License: Wikipedia: Cmglee; Data: Jennifer Johnson (OSU)
    Explanation: The hydrogen in your body, present in every molecule of water, came from the Big Bang. There are no other appreciable sources of hydrogen in the universe. The carbon in your body was made by nuclear fusion in the interior of stars, as was the oxygen. Much of the iron in your body was made during supernovas of stars that occurred long ago and far away. The gold in your jewelry was likely made from neutron stars during collisions that may have been visible as short-duration gamma-ray bursts or gravitational wave events. Elements like phosphorus and copper are present...
  • Explosive X1.9 Class Solar Flare Erupts From the Sun

    01/12/2023 12:06:10 PM PST · by Red Badger · 31 replies
    Scitech Daily ^ | JANUARY 12, 2023 | By NASA
    X1.9 Solar Flare January 9 2023 An X1.9 class solar flare flashes on the left edge of the Sun on January 9, 2023. This image was captured by NASA’s Solar Dynamics Observatory and shows a blend of light from the 171, 131, and 304 angstrom wavelengths. Credit: NASA/GSFC/SDO ******************************************************** The Sun emitted a strong solar flare, peaking at 1:50 p.m. EST on January 9, 2023. Imagery of the event was captured by NASA’s Solar Dynamics Observatory, which constantly watches the Sun. Solar flares are intense explosions of energy that can disrupt radio communications, damage power grids, and affect navigation signals....
  • DEEP UNDERGROUND LABORATORY REVEALS RESULTS OF HUNT FOR QUANTUM GRAVITY, STRING THEORY

    01/12/2023 8:17:09 AM PST · by BenLurkin · 16 replies
    The Debrief ^ | 01/01/2023 | Christopher Plain
    For decades physicists have tried to rectify the Standard Model of Particle Physics, which is great at describing the behavior of particles, interactions, and quantum processes on the micro scale, with gravity...the Standard Model, as it is currently constructed, fails to account for gravity at this extremely small scale. ...a number of mathematical models have been proposed that would unify these disparate phenomena, including something called string theory [and] a number of these models feature elements that can be tested in a lab setting. One is known as the Pauli exclusion principle. Pauli exclusion basically means that no two electrons...
  • Comet 2022 E3 (ZTF) Updates ... 2023

    01/02/2023 7:56:05 PM PST · by Orlando · 15 replies
    youtube ^ | 1-2-2023 | Vetfather
    This video cover new updates, and alot of unknowns... and provide new updates as it get closer to Earth !
  • Excitement Builds as Comet Approaches Earth for First Time in About 50,000 Years

    01/06/2023 9:08:32 AM PST · by Red Badger · 64 replies
    Legal Insurrection ^ | Friday, January 6, 2023 at 09:00am | by Leslie Eastman
    C/2022 E3 (ZTF) is set to pass by Earth for the first time since Neanderthals existed 50,000 years ago. Excitement among sky-watchers is building as a comet, not visible since the time of the Neanderthals, is heading towards Earth again. Formally known as C/2022 E3 (ZTF), the comet orbits the sun every 50,000 years and is set to make its closest approach to our planet on February 1, 2023. E3 was discovered in March, but scientists recently snapped the first detailed photo revealing its brighter greenish coma and a yellowy dust tail. While the comet is too dim to see...
  • NASA, Alaska researchers to scan asteroid with radio waves

    01/02/2023 12:51:03 PM PST · by Red Badger · 14 replies
    UPI ^ | DEC. 27, 2022 / 8:32 PM | By Joe Fisher
    NASA is teaming with scientists from the University of Alaska Fairbanks’ Geophysical Institute to send about 9.6 million radio waves to 2010 XC15, an asteroid that will pass by about twice the distance from Earth to the Moon. Image courtesy of NASA/Jet Propulsion Laboratory/California Institute of Technology NASA is teaming with scientists from the University of Alaska Fairbanks’ Geophysical Institute to send about 9.6 million radio waves to 2010 XC15, an asteroid that will pass by about twice the distance from Earth to the Moon. Image courtesy of NASA/Jet Propulsion Laboratory/California Institute of Technology Dec. 27 (UPI) -- Researchers are...
  • NASA and HAARP conclude asteroid experiment

    01/01/2023 3:56:00 AM PST · by Ezekiel · 21 replies
    University of Alaska Fairbanks ^ | Dec. 29, 2022 | Rod Boyce
    (Photos and image at link.)A powerful transmitter in remote Alaska sent long wavelength radio signals into space Tuesday with the purpose of bouncing them off an asteroid to learn about its interior.The asteroid, 2010 XC15, is estimated to be about 500 feet across and is passing by Earth at two lunar distances, which is twice the distance between the Earth and the moon. Results of Tuesday’s experiment at the High-frequency Active Auroral Research Program research facility at Gakona could aid efforts to defend Earth from larger asteroids that could cause significant damage.“We will be analyzing the data over the next...
  • Comet set to pass by Earth for the first time since Neanderthals existed 50,000 years ago is revealed in a new image

    12/30/2022 3:17:01 AM PST · by blueplum · 34 replies
    Daily Mail UK ^ | 29 Dec 2022 | STACY LIBERATORE
    A comet not seen since Neanderthals walked the Earth is set to make a return trip - and astronomers have shared the first detailed image of the 'cosmic snowball.' Formally known as C/2022 E3 (ZTF), the comet orbits the sun every 50,000 years and is set to make its closest approach to our planet on February 1, 2023.... ....The comet is currently 117 million miles from Earth and is set to reach the sun on January 1, loop around and make its closest approach to our planet. And E3 will be the first comet seen to the naked eye since...
  • Like at the Center of Planet Uranus: How Materials Behave Under Extreme Pressure

    12/29/2022 11:44:06 AM PST · by Red Badger · 21 replies
    Scitech Daily ^ | DECEMBER 29, 2022 | By UNIVERSITY OF BAYREUTH
    Extreme Pressure Diamond Anvil Structures and properties of materials at extremely high pressures and temperatures are still largely “terra incognita”. Prof. Leonid Dubrovinsky and his research partners use a laser-heated two-stage diamond anvil cell they constructed for the synthesis of materials in the terapascal range (1000 gigapascals). In situ single crystal X-ray diffraction is used for the simultaneous structural characterization of the materials. Credit: Timofey Fedotenko ****************************************************************** New method enables materials synthesis research and study in the terapascal range for the first time. Jules Verne could not have dreamed of this: A research team from the University of Bayreuth, together...
  • Newly Discovered Asteroid Is a Weird 'Mini Moon' on a 200-Year Visit to Earth

    12/29/2022 1:03:25 PM PST · by Red Badger · 25 replies
    CNet ^ | Dec. 27, 2022 8:28 a.m. PT | Eric Mack
    The space rock looks to have been captured by our planet's gravity over 60 years ago. Artist's rendering of an asteroid approaching Earth An asteroid just spotted for the first time seems to have been circling Earth for decades. NASA Our planet has a pretty permanent relationship with the moon, but occasionally Earth's gravity can also capture small asteroids that then spend a period of time orbiting us as a sort of temporary satellite. This has happened at least twice this century, with the "mini moons" hanging around for just a few years or less, but newly discovered asteroid 2022...
  • We've Never Found Anything Like The Solar System. Is It a Freak in Space?

    12/28/2022 11:14:08 AM PST · by Red Badger · 122 replies
    Science Alert ^ | 29 December 2022 | By MICHELLE STARR
    Bold Colour Image depicting the Solar System (NASA) Since the landmark discovery in 1992 of two planets orbiting a star outside of our Solar System, thousands of new worlds have been added to a rapidly growing list of 'exoplanets' in the Milky Way galaxy. We've learnt many things from this vast catalogue of alien worlds orbiting alien stars. But one small detail stands out like a sore thumb. We've found nothing else out there like our own Solar System. This has led some to conclude that our home star and its brood could be outliers in some way – perhaps...
  • Atlantis & Great Meteor Seamounts / Vertical Tectonism | Randall Carlson | Kosmographia Clips 007.5

    12/27/2022 1:22:16 PM PST · by SunkenCiv · 16 replies
    YouTube ^ | Kosmographia Clips
    Atlantis & Great Meteor Seamounts / Vertical TectonismRandall Carlson | Kosmographia Clips 007.5The Randall Carlson | 164K subscribers | 72,436 views | September 20, 2022