Tag Archives: cosmology

Finding New Worlds

We could detect oxygen in Proxima Centauri b’s atmosphere. It’s a biosignature, but not proof of life. Some extrasolar planets are like Earth, almost. Many are unlike anything in the Solar System. I’ll be looking at recently-discovered worlds; some almost … Continue reading

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Einstein’s Waves: New Views

Einstein’s theories gave scientists good reasons for thinking gravitational waves exist. A century later, instruments detected the elusive radiation. Three American scientists won this year’s Nobel Prize in Physics for work that led to the discovery. Observatories in America and … Continue reading

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Adam and the Animals

I think pursuing knowledge and truth is a good idea. That’s probably why Tennyson’s “Ulysses” is one of my favorite poems. It’s the source of my Google Plus tagline: “To follow knowledge like a sinking star, Beyond the utmost bound … Continue reading

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Mars: Leaky Red Planet

What we’re learning about Mars, and a new type of really small spacecraft, reminded me of earth, air and kilts. Also pharaohs, Thomas Paine, and Lord Kelvin. By then I was running out of time to write something more tightly-organized. … Continue reading

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