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    Astronomy: A Guide

    WeHeadedToMars4 hours ago

    Astronomy: A Guide

    Imagine standing beneath a velvety expanse of stars, each twinkling light a distant sun, and each shadowy void a portal to the unknown. With “Astronomy: A Guide,” you are invited

    Universe’s expansion is slowing down, not speeding up

    EarthSky9 hours ago

    Universe’s expansion is slowing down, not speeding up

    Researchers used type Ia supernovas, similar to SN1994d pictured above in its host galaxy NGC4526, to help establish that the universe’s expansion may actually have started to slow. For decades,

    The expansion of our universe may be slowing down. What does that mean for dark energy?

    space.com9 hours ago

    The expansion of our universe may be slowing down. What does that mean for dark energy?

    As if dark energy weren’t already mysterious and baffling enough, new research suggests that this unknown force may not be driving galaxies apart at an accelerating rate anymore. This remarkable

    phys.org9 hours ago

    Universe's expansion 'is now slowing, not speeding up': Evidence mounts that dark energy weakens over time

    The universe’s expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously thought, a new study suggests.

    Thick Dust Can't Stop Euclid From Doing Its Job

    Universe Today9 hours ago

    Thick Dust Can't Stop Euclid From Doing Its Job

    The Euclid Space Telescope found some stars hiding in thick gas and dust in the Orion Molecular Cloud Complex. They’re inside a so-called dark cloud named LDN 1641.

    phys.org9 hours ago

    Video: Copernicus Sentinel-1D launch

    The Copernicus Sentinel-1D satellite has joined the Sentinel-1 mission in orbit. Launch took place on 4 November 2025 at 22:03 CET (18:03 local time) on board an Ariane 6 rocket

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