Quantcast
Channel: PBS NewsHour » Topics » Science
Viewing all articles
Browse latest Browse all 1463

Meteor Shower Told in Tweets

$
0
0

Israelis in a hot water spring on the shore of the Dead Sea near the Israeli Kibbutz of Ein Gedi watch the sky for Geminid meteor streaks above the Judean desert on December 14, 2012. Photo by Menahem Kahana/AFP/Getty Images.

Nature put on a dazzling light show early Friday morning, and it's scheduled to deliver another tonight. The Geminid meteor shower, which occurs every December, is thought to result from debris spewing from an asteroid-like object called 3200 Phaethon.

From NewsHour science correspondent Miles O'Brien and BoingBoing, here's a guide on how to watch it. "Find Sirius," he says. "Up and to the right will be Orion's Belt. Up a little higher to the left will be Gemini. The meteors will emanate from there (astronomers call this the radiant)."

In case you missed it, here's a look at what people have been snapping from their neighborhoods.

Geminid meteor over Polpis Harbor #Nantucket facebook.com/photo.php?pid=... Stunning image by @ackdoc twitter.com/JasonGraziadei...

— Jason Graziadei (@JasonGraziadei) December 14, 2012

Awesome photo of a Geminid meteor last night taken in Windsor, NY. #shootingstars #geminid twitter.com/wx4cstr/status...

— Hunter Coleman (@wx4cstr) December 14, 2012

Another nice photo MT @erniebarreto: Another #Geminid as seen from Centreville, VA twitter.com/ErnieBarreto/s...

— Capital Weather Gang (@capitalweather) December 14, 2012

And here's a map from AccuWeather showing who's got the best view.

Most meteor showers are caused by icy comets casting off jets and meteoroides when heated by sunlight, NASA says in this video below. But the Geminid Meteor shower, which appears to radiate from the constellation Gemini, is less understood.

QUICK BITES

First, there was the recent evidence of water ice on Mercury. Then, a Martian soil sample from the Curiosity rover containing evidence of water. Plus, the latest news that the Cassini mission has spotted what looks to be a mini Nile River Valley on Saturn's moon, Titan. Water in the solar system may not be so rare after all.

Here's a map by io9 of all the water in the solar system. Scroll down for an expandable version.

On Thursday's PBS NewsHour broadcast, Miles reported under the influence on addiction and "the siren call of dopamine."

Watch Video

Want to watch him get drunk in a lab? We've got that video for you here:

Watch Video

NASA takes on the Mayan apocalypse. And not only won't the world end on December 21st, the Mayans never said it would.

In 1868, Darwin designed an experiment to understand how humans interpret facial expressions, The Scientist reports. He used electric probes to shape participants' faces into different emotions, and then assessed how others reacted to the various expressions. His question: were there expressions that were universally understood, from happiness to anger? And now that experiment -- originally conducted on 20 people -- is being replicated at the University of Cambridge with 18,000 Internet volunteers. And they're reacting to Darwin's original photographs. Scientists think the answers could guide research in areas such as facial recognition software and autism.

King crabs are crawling into warmer Antarctic waters and wreaking havoc on a rare and ancient ecosystem, according to this wonderful and vivid story in Nature.

The Air Force has said little about why it launched an experimental robotic space plane into orbit atop an Atlas V rocket on Tuesday for a classified mission that could last more than five months, the Los Angeles Times reports.

Jeremy Blackman, Patti Parson, David Pelcyger contributed to this report.

Support Your Local PBS Station


Viewing all articles
Browse latest Browse all 1463

Trending Articles