Measure twice, cut once, they say. Unless you are trying to save the planet. In that case, measure and cut constantly.
Washington (AFP) — Orbital Sciences Corporation’s unmanned Cygnus cargo ship left the International Space Station Friday on its way to a fiery re-entry into Earth’s atmosphere. The spacecraft was released from the orbiting lab at 6:40 a.m,. NASA said in a live broadcast of the event. “Cygnus is free of the International Space Station,” a […]
By Deborah Netburn, Los Angeles Times LOS ANGELES — The asteroid that wiped out the dinosaurs also caused a temporary but devastating “impact winter” — darkening the sky, cooling the Earth and inhibiting photosynthesis, new research suggests. Sixty-six million years ago, a 6.2-mile-wide asteroid known as Chicxulub struck the Earth off the Yucatan coast, setting off […]
By Deborah Netburn, Los Angeles Times LOS ANGELES — Tiny microbes on the bottom of the ocean floor may have been responsible for the largest extinction event our planet has ever seen, according to a new study. These microbes of death were so small, that one billion of them could fit in a thimble-full of ocean […]
By Deborah Netburn, Los Angeles Times The oldest known material on Earth is a tiny bit of zircon crystal that has remained intact for an incredible 4.4 billion years, a study confirms. The ancient remnant of the early Earth may change the way we think about how our planet first formed. The crystal is the […]