@www.centauri-dreams.org@rss-parrot.net
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Site URL: www.centauri-dreams.org
Feed URL: www.centauri-dreams.org/feed
Posts: 10
Followers: 1
A New Tool for Exoplanet Detection and Characterization
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Published: February 6, 2026 14:19
It’s been apparent for a long time that far more astronomical data exist than anyone has had time to examine thoroughly. That’s a reassuring thought, given the uses to which we can put these resources. Ponder such programs as Digital Access to a Sky…
Holography: Shaping a Diffractive Sail
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Published: January 28, 2026 13:36
One result of the Breakthrough Starshot effort has been an intense examination of sail stability under a laser beam. The issue is critical, for a small sail under a powerful beam for only a few minutes must not only survive the acceleration but follow a…
Shelter from the Storm
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Published: January 24, 2026 14:44
The approaching storm will almost certainly cause power outages that will make it impossible to post here. If this occurs, you can be sure that I’ll get any incoming messages posted as soon as I can get back online. Please continue to post comments as…
Cellular Cosmic Isolation: When the Universe Seeds Life but Civilizations Stay Silent
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Published: January 20, 2026 16:06
So many answers to the Fermi question have been offered that we have a veritable bestiary of solutions, each trying to explain why we have yet to encounter extraterrestrials. I like Leo Szilard’s answer the best: “They are among us, and we call them…
Pandora: Exoplanets at Multiple Wavelengths
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Published: January 14, 2026 13:21
Sometimes we forget how overloaded our observatories are, both in space and on the ground. Why not, for example, use the James Webb Space Telescope to dig even further into TRAPPIST-1’s seven planets, or examine that most tantalizing Earth-mass planet…
Explaining Cloud-9: A Celestial Object Like No Other
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Published: January 7, 2026 12:55
Some three years ago, the Five-Hundred Meter Aperture Spherical Telescope (FAST) in Guizhou, China discovered a gas agglomeration that was later dubbed Cloud-9. It’s a cute name, though unintentionally so, as this particular cloud is simply the ninth thus…
Astrobiology: What Our Planet Can Teach Us
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Published: January 1, 2026 14:25
Will 2026 be the year we detect life elsewhere in the universe? The odds seem against it, barring a spectacular find on Mars or an even more spectacular SETI detection that leaves no doubt of its nature. Otherwise, this new year will continue to see us…
Building a Library of Science Fiction Film Criticism
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Published: December 19, 2025 18:28
Back in the days when VCR tapes were how we watched movies at home, I took my youngest son over to the nearby Blockbuster to cruise for videos. He was a science fiction fan and tuned into both the Star Trek and Star Wars franchises, equally available at…
New Uses for the Eschaton
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Published: December 17, 2025 14:29
One way to examine problems with huge unknowns – SETI is a classic example – is through the construction of a so-called ‘toy model.’ I linger a moment on the term because I want to purge the notion that it infers a lightweight conclusion. A toy model…
A ‘Tatooine’ Planet Directly Imaged
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Published: December 11, 2025 19:34
I jump at the chance to see actual images – as opposed to light curves – of exoplanets. Thus recent news of a Tatooine-style planetary orbit around twin stars, and what is as far as I know the first actually imaged planet in this orbital configuration. I’m…