Lifeboat Foundation

In the 20th century, many options abounded as to our cosmic origins. Today, only the Big Bang survives, thanks to this critical evidence.

Preview of NASA’s Double Asteroid Redirection Test, or DART, the first asteroid deflection mission.

Worm-hole generators by the pound mass: https://greengregs.com/

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Infinity is back. Or rather, it never (ever, ever…) went away. While mathematicians have a good sense of the infinite as a concept, cosmologists and physicists are finding it much more difficult to make sense of the infinite in nature, writes Peter Cameron.

Each of us has to face a moment, often fairly early in our life, when we realize that a loved one, formerly a fixture in our life, was not infinite, but has left us, and that someday we too will have to leave this place.

This experience, probably as much as the experience of looking at the stars and wondering how far they go on, shapes our views of infinity. And we urgently want answers to our questions. This has been so since the time, two and a half millennia ago, when Malunkyaputta put his doubts to the Buddha and demanded answers: among them he wanted to know if the world is finite or infinite, and if it is eternal or not.

Issac Arthur play list.

SFIA looks at uses for black holes ranging from spaceships to artificial worlds to escaping the Heat Death of the Universe.

Continue reading “Black Holes” »

There is a lot of culture and philosophy built into the Big Bang theory as we understand it.

After the big bang, electricity and light filled the universe in what’s called the epoch of reionization. The James Webb Space Telescope is hunting for more clues to explain this time period.

Astronomers have recently found the nearest known black hole to our solar system. According to scientists, the black hole is 1,570 lightyears away and ten times larger than our sun.

Known as Gaia BH1, the research was led by Harvard Society Fellow astrophysicist Kareem El-Badry, with the Harvard-Smithsonian Center for Astrophysics (CfA) and the Max Planck Institute for Astronomy (MPIA).

In addition, El-Badry worked with researchers from CfA, MPIA, Caltech, UC Berkeley, the Flatiron Institute’s Center for Computational Astrophysics (CCA), the Weizmann Institute of Science, the Observatoire de Paris, MIT’s Kavli Institute for Astrophysics and Space Research, and other universities.

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For about two hours, a bubble of extremely hot electrons whirled around the Milky Way’s supermassive black hole at 30 per cent of the speed of light, and then it was destroyed.

This bubble takes just about an hour to whip around a black hole.

This bubble that circles the event horizon of Sgr A takes just 70 minutes to whip around the black hole. It was observed by the Event Horizon Telescope.

Continue reading “Look! Astronomers find a hot ball of plasma circling the Milky Way’s massive black hole” »