How to see the eclipse anywhere

If the weather cooperates, millions of people can witness Sunday's rare "Ring of Fire" solar eclipse — but what if you're one of the billions who can't? You can still watch the event online. That's what Alan MacRobert, a senior editor at Sky & Telescope magazine, is pla …

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Scientists read a galaxy's entrails

Astronomers are taking a long, deep look at one of the best-known galaxies beyond our own Milky Way, to learn more about what happened when it gobbled up another agglomeration of stars that got too close. The entrails of the gobbled galaxy are prominent in this view of Centaurus  …

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On the road again

I'm on the road in the Pacific Northwest, hunting for a spot where I can watch Sunday's annular solar eclipse. That means Cosmic Log postings will be less frequent than usual. Watch for the occasional photo posting, for weekend coverage of the eclipse, and for the  …

Saturn's moons make waves in rings

This image from NASA's Cassini orbiter shows why Daphnis and Pan are known as "shepherd moons": The gravitational influence of those tiny satellites help keep Saturn's giant rings in line, creating subtle ripples and waves in the process. Five-mile-wide Daphnis, at lower left, ma …

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Astronaut shares groovy space trip

Flying on the International Space Station is the world's biggest high, and a series of psychedelic time-exposure images engineered by NASA astronaut Don Pettit proves it. This picture, showing the station's truss structure in the foreground and Earth's airglow in the background,  …

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African-American's roots revised

If you're an African-American, tracing your roots back to the ancestral continent is hard enough — but tracing them back to the ancestral family? That requires genetic testing, plus family-history scholarship, plus trips to Africa, plus a little bit of faith. William Hollan …

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Brain-teasers for blog birthday

We're not only closing out the week — we're closing out the first 10 years of Cosmic Log. It was on May 13, 2002, that I first began noting the follies and mysteries of science, space and society in this space. To mark the occasion, I'm presenting not just one, not just two …

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The verdict is in on that sea monster video: It's a jellyfish

Marine biologists say the spooky "Cascade Creature" seen drifting through the deep sea in a viral video isn't a whale placenta, a parachute, a plastic bag or an alien visitor: It's a type of jellyfish known as a Deepstaria enigmatica. The video, which was apparently captured by a …

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The World at Night finds beauty in darkness and light

Light pollution never looked so good: The World at Night's annual photography contest highlights the beauties of the night sky, but it also highlights the challenges posed by humanity's efforts to light up the night. This year's winners reveal how artificial lighting can add anot …

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Pros and cons in the bee debate

Is a widely used pesticide to blame for making bees disappear? The debate over a class of chemicals known as neonicotinoids was the focus of a spot on NBC's "Nightly News" tonight, and NBC News' Anne Thompson has supplemented her TV report with a couple of Web-only videos present …

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SpaceX teams up with Bigelow on space station marketing

SpaceX and Bigelow Aerospace plan to meet with officials in Japan soon after this month's scheduled launch of SpaceX's Falcon 9 rocket and Dragon capsule, to kick off an international marketing effort for private-sector space stations. The plan, laid out today in a jointly issued …

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Maya calendar workshop documents time beyond 2012

Archaeologists have found a stunning array of 1,200-year-old Maya paintings in a room that appears to have been a workshop for calendar scribes and priests, with numerical markings on the wall that denote intervals of time well beyond the controversial cycle that runs out this De …

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One man's path to space goes through Seattle's Space Needle

University of Arizona law student Gregory Schneider is getting ready for graduation this weekend, for the birth of his third child later this year — and now he'll have to get ready for a spaceflight as well. Schneider accepted his prize during a Seattle Space Needle ceremo …

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3,000-year-old artifacts reveal history behind biblical David and Goliath

An archaeological dig near Goliath's biblical hometown has yielded evidence of Judean religious practices 3,000 years ago, pointing up fresh historical connections to the stories of King David and King Solomon. "We have a city with a population relating to the Kingdom of Judah,"  …

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What is life? Follow the bits

The debate over the definition of life is getting messier and messier, but one of the pioneers on the biochemical frontier is suggesting a method to tell whether scientists are actually looking at a new form of life: Follow the bits of information that are contained in the chemis …

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Trio of twisters spotted on Mars

It's eerie enough to see one whirlwind swirling across the Martian surface, but three? Get out your 3-D glasses and spot the three dust devils rising from Amazonis Planitia, as seen by the high-resolution camera aboard NASA's Mars Reconnaissance Orbiter. These mini-twisters are a …

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Buuurp! Methane-emitting dinosaurs could have warmed the earth

Some scientific findings are just too good to leave alone, even if you don't know if they can ever be confirmed: Such is the case for a study saying that plant-eating dinosaurs could have emitted enough digestive methane to warm Earth's climate 150 million years ago. "It is known …

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Your views of the supermoon

The supermoon of 2012 is over, but the joys of moongazing are not. Even though Saturday night's lunar showing was the biggest and brightest of the year, the views are nearly as good anytime around the full moon — tonight, for example. Photographs of the supermoon sight …

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Tell us what's OK for kids online

When is it OK for your child to have a cell phone? Have a Facebook profile? Log onto YouTube? James Steyer, founder and CEO of Common Sense Media and the father of four children, tackles those questions and more in a new book, "Talking Back to Facebook: The Common Sense Guide to …

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How big is that supermoon anyway?

Saturday night's "supermoon" is the biggest and brightest full moon of the year, due to the fact that the moon is near the closest point in its orbital path around Earth. But just how much bigger and brighter does it look? That's a tricky question. Most reports say the moon looks …

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Wonders of sun, moon and sky

The next month promises to be filled with astronomical wonders, including this weekend's "supermoon," an annular solar eclipse later this month, and a last-in-a-lifetime transit of Venus. Here are a few images to get you in the mood for those cosmic glories.

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SpaceX station launch set for May 19

SpaceX has suggested May 19 as the new date for its potentially history-making Falcon 9 rocket launch to the International Space Station, with May 22 as a backup date. The schedule shift provides more time for NASA to review changes in the California-based company's flight softwa …

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Cartoons visualize the Higgs boson

The prime target for the $10 billion Large Hadron Collider is discovery and study of the Higgs boson — but what the heck is the Higgs, and what's it supposed to do? PHD Comics' Jorge Cham explains the quest in an animated cartoon that draws upon the expertise of Daniel Whit …

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SpaceX chief wants to be spaceflier

The billionaire founder of the SpaceX rocket venture, Elon Musk, says that within five years he wants to make orbital space trips available to regular passengers — including himself. And if he sticks to his timeline, Musk just might go beyond Earth orbit before NASA's Orion …

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Zombie ants fight fungus with fungus

The Cordyceps fungus has become a staple of "stranger than fiction" nature stories: Its complex and lethal parasitism of ants, causing the insects to climb as high as they can before the fungus bursts like a horn from their heads, is both bizarre and captivating. Now scientists  …

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  • How to see the eclipse anywhere

    If the weather cooperates, millions of people can witness Sunday's rare "Ring of Fire" solar eclipse — but what if you're one of the billions who can't? You can still watch the event online. That's what Alan MacRobert, a senior editor at Sky & Telescope magazine, is pla …

  • African-American's roots revised

    If you're an African-American, tracing your roots back to the ancestral continent is hard enough — but tracing them back to the ancestral family? That requires genetic testing, plus family-history scholarship, plus trips to Africa, plus a little bit of faith. William Hollan …

  • Brain-teasers for blog birthday

    We're not only closing out the week — we're closing out the first 10 years of Cosmic Log. It was on May 13, 2002, that I first began noting the follies and mysteries of science, space and society in this space. To mark the occasion, I'm presenting not just one, not just two …

  • The World at Night finds beauty in darkness and light

    Light pollution never looked so good: The World at Night's annual photography contest highlights the beauties of the night sky, but it also highlights the challenges posed by humanity's efforts to light up the night. This year's winners reveal how artificial lighting can add anot …

  • Pros and cons in the bee debate

    Is a widely used pesticide to blame for making bees disappear? The debate over a class of chemicals known as neonicotinoids was the focus of a spot on NBC's "Nightly News" tonight, and NBC News' Anne Thompson has supplemented her TV report with a couple of Web-only videos present …