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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    A CubeSat to Capture a Supernova's UV Spectrum
    Technology Readiness Levels (or TRL levels, because repeating the last word of initialisms is common in English) is a metric commonly used by NASA to define how developed a technology for use on a mission is. These typically range from 1-9, with 1 being an idea in someone's head, and 9 having been successfully flown on a mission. One of the assessments of new projects that NASA does is a check of the TRL levels of its constituent components - those with a higher level get higher marks, since it is assumed that the technology necessary to get them ready will require less work. So, sometimes, NASA and other organizations will sponsor smaller missions to work on a specific technology needed for one of its big flagship programs. That seems to be the approach from a team led by Keri Hoadley of the University of Florida, who recently laid out a mission concept for the Ultraviolet Type Ia Supernova CubeSat (UVIa).
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    Could Dark Matter Be Evolving Over Time, and Not Dark Energy?
    For a while now, there has been a problematic mystery at the heart of the standard cosmological model. Although all observations support the expanding Universe model, observations of the early period of the cosmos give a lower rate of acceleration than more local observations. We call it the Hubble tension problem, and we have no idea how to solve it. Naturally, there have been several proposed ideas: what if general relativity is wrong; what if dark matter doesn't exist; what if the rate of time isn't uniform; heck, what if the entire Universe rotates. So, let's add a new idea to the pile: what if dark matter evolves?
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    Tracking Down "Annihilation Photons" Could Lead To Unique Binary Systems
    Tracking the sources of photons is a hobby of many astrophysicists. Some types of photons are tied so closely to particular phenomena that tracking their sources would help answer some larger questions in astrophysics itself. Photons on the "511 keV line" are one such type of photon, and they have been overrepresented near the galactic core, with no known source being prolific enough to create them. A new paper from Zachary Metzler and Zorawar Wadiasingh of the University of Maryland and NASA's Goddard Space Flight Center suggests one potential source - millisecond pulsar (MSP) binaries.
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    Glass Beads on the Moon Contain Material Dug Up from Deep Down
    If we could peel back the Moon's cratered crust and examine its mantle, we might find answers to some foundational questions that date back to the Apollo moon landings. We lack the technological capability to excavate the Moon's mantle, but Nature has a way. A massive, ancient impact excavated material from deep beneath the Moon's crust and left it on the surface for us to study. It could help confirm the Moon's origins.
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    TESS Has Found Exoplanets. Can it Find Rings Around Them?
    NASA's Transiting Exoplanet Survey Satellite (TESS) has already uncovered hundreds of exoplanets of all sizes. Now, a team of astronomers is pushing the search even furtherthis time, looking for signs of planetary rings. Scanning 308 TESS planet candidates, they zeroed in on large, fast-orbiting worlds circling bright, nearby stars. Out of those, six showed subtle hints that rings might be present. But despite the tantalising clues, none offered definitive evidence of ring systemsat least not yet.
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    Everything in the Universe Could Decay from Hawking Radiation
    Youve probably heard that black holes stick around for a long timebut even they are not eternal. Over unimaginable spans of time, they slowly evaporate into space through a process called Hawking radiation. And heres the kicker: this doesnt just apply to black holes. Anything with massstars, moons, even youcan, in theory, evaporate in this way. Black holes are a special case since they dont have a surface and can actually swallow some of their own radiation, making their demise painfully slow. The biggest ones might take up to 10^100 years to disappear. But smaller objects? Something like the Moonor a human beingcould fade into nothingness in "just" 10^90 years.
    0 Yorumlar 0 hisse senetleri 196 Views
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    Webb Watches Auroras Dance in Jupiter's Atmosphere
    James Webb Space Telescope zoomed in on Jupiter's turbulent north pole in 2023 on the lookout for aurora. The results were amazing. Scientists have finally crunched through the data, revealing how the aurora rapidly change, fizzing and popping with light over the course of a few minutes. The team didn't stop there, training Hubble's ultraviolet eye on the same light show, they've created the most comprehensive view of Jupiter's auroral displays ever captured.
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    Advancing Martian Geology Mapping with Machine Learning Tools
    How can artificial intelligence (AI) be used to advance mapping and imaging methods on other planets? This is what a recent study presented at the 56th Lunar and Planetary Science Conference hopes to address as a lone researcher investigated using machine learning models to enhance mapping and imaging capabilities from orbital images obtained from the Mars Reconnaissance Orbiter (MRO) Context Camera (CTX), which is currently orbiting Mars. This study has the potential to help scientists, engineers, and the public better understand the benefits of AI in conducting more advanced science, specifically regarding global images around Earth and other worlds.
    0 Yorumlar 0 hisse senetleri 197 Views
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    The Fastest Spinning Asteroids are Most Likely to Have Moons
    When NASA's Galileo spacecraft flew past asteroid Ida, it discovered a second, smaller asteroid in orbit: Dactyl. This was the first confirmed discovery of an asteroid with a moon, but now we know of many, including 13 asteroids larger than 100 km with satellites. Researchers have found that the mostly rapidly spinning asteroids are more likely to have moons; a large impact both spins up the asteroid and creates the debris that remains in orbit.
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  • PFP test - Science paylaşılan bir bağlantı
    2025-05-15 22:00:07
    WWW.UNIVERSETODAY.COM
    Not Saying it's Aliens: SETI Survey Reveals Unexplained Pulses From Distant Stars
    Veteran NASA scientist Richard H. Stanton describes the results of a multi-year survey of more than 1300 Sun-like stars for optical SETI signals. This survey revealed two fast identical pulses from a Sun-like star about 100 light-years from Earth, that match similar pulses from a different star observed four years ago.
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