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Chebucto Regional Softball Club

Fraser CainF

fraser@m.universetoday.com

@fraser@m.universetoday.com
A forum for discussing and organizing recreational softball and baseball games and leagues in the greater Halifax area.
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Recent Best Controversial

  • In the early Universe, just a few hundred million years after the Big Bang, the cosmos was filled with a dense fog of neutral hydrogen gas.
    Fraser CainF Fraser Cain

    In the early Universe, just a few hundred million years after the Big Bang, the cosmos was filled with a dense fog of neutral hydrogen gas. At some point, this gas became ionized, stripped of its electrons. Thanks to JWST, astronomers have identified the culprit: low-mass starburst galaxies emitting huge amounts of ultraviolet light. Astronomers found 83 of these small starburst galaxies in one part of the sky at a time when the Universe was only 800 million years old.

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    NASA’s Webb ‘UNCOVERs’ Galaxy Population Driving Cosmic Renovation - NASA Science

    Astronomers using data from NASA’s James Webb Space Telescope have identified dozens of small galaxies that played a starring role in a cosmic makeover that

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    NASA Science (science.nasa.gov)

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  • Solar sails get their propulsion from the Sun, so they don't need to carry propellant, but they come with their own challenges.
    Fraser CainF Fraser Cain

    Solar sails get their propulsion from the Sun, so they don't need to carry propellant, but they come with their own challenges. A sail has a large surface area but a low mass, which creates a huge moment of inertia and makes it difficult to control, especially with reaction wheels. A team of engineers has developed a reflectivity control device, where thin membranes on the sail change their reflectivity, producing less force and allowing the sail to change direction.

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    Attitude Control of Solar Sail with Reflectivity Control Devices

    Abstract page for arXiv paper 2505.19865: Attitude Control of Solar Sail with Reflectivity Control Devices

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    arXiv.org (arxiv.org)

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  • A recent study claimed that passing stars could have a serious effect on the Earth's climate, specifically with one about 56 million years ago.
    Fraser CainF Fraser Cain

    A recent study claimed that passing stars could have a serious effect on the Earth's climate, specifically with one about 56 million years ago. In a new paper, researchers disagree with that theory, examining other factors that could have influenced Earth's climate, such as the Moon and Sun. They find that even close encounters don't affect Earth's orbit on rapid timescales and shouldn't mess up our climate reconstructions over millions of years of Earth history.

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    No influence of passing stars on paleoclimate reconstructions over the past 56 million years

    Abstract page for arXiv paper 2506.10158: No influence of passing stars on paleoclimate reconstructions over the past 56 million years

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    arXiv.org (arxiv.org)

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