How Moon Colonists Might Survive The Frigid Lunar Night

Man, it can get cold on the moon. With virtually no air to speak of and a night that lasts just shy of two weeks, the surface temperature drops to around 275° below zero (–170° C). Dry ice or frozen carbon dioxide is toasty in comparison with a temperature of just –109° F (–78.5° C). Picture…
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Take A Wonderful Flight Over Mars / 41P Comet Update

An imaginary flight above the real Mars. Click here for the full-screen option – highly recommended! I started my day in orbit around Mars and can’t wait for you to join me. Just click the button and your journey to the Red Planet begins with a close approach to its largest moon, Phobos. The video, titled…
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Robin Song, Slanted Earth, Must Be Spring

I really, truly heard my first robin today, the first day of spring. The lilting, see-saw song made me stop in my tracks; I just listened, soaking in the melody of the new season. Spring began overcast and early at 5:28 a.m. (CDT) in my neighborhood but has since turned sunny and surprisingly warm. I fear…
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Comet 41P/T-G-K Tangles With The Great Bear

Comet 41P/Tuttle-Giacobini-Kresak should become bright enough this coming week to see in 10×50 binoculars as it hurries across Ursa Major the Great Bear. 41P returns to Earth’s vicinity every 5.4 years. Some years it plays out that the comet is particularly close to Earth. 2017 is one of them. On March 31-April 1, the comet…
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Armageddon Declassified — Terrifying Images From The Birth Of The Atomic Age

We’ve been playing with fire for a long time. Back in the 1950s and early 1960s the U.S. routinely conducted above ground, underground and atmospheric testing of nuclear and thermonuclear devices during the height of the Cold War against the then Soviet Union. By 1959, radioactive debris from the tests were found in wheat and…
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