Tuesday, August 19, 2014

CME Strike Produces Auroras Seen from Space


Source - Space Weather News for August 20, 2014: http://spaceweather.com

A minor CME hit Earth's magnetic field during the early hours of August 19th.  At first, the weak impact did little to stir geomagnetic activity, but a geomagnetic storm has since developed as Earth passes through the wake of the solar storm cloud.  Astronauts on the ISS report a gorgeous display of auroras seen from Earth orbit.  Updates and photos may be found on http://spaceweather.com

AURORA ALERTS are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).

Exoplanet Measured with Remarkable Precision


Source - NASA Science News for August 18, 2014

Astronomers are not only discovering planets around distant suns, they are also starting to measure those worlds with astonishing precision. The diameter of a super-Earth named "Kepler 93 b" is now known to within an accuracy of 1%.
  
The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/18aug_sizeup/

A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?v=lA6MJkHJXVk&feature=youtu.be



License: Standard YouTube License

Sunday, August 17, 2014

Big Picture Science for 08/18/14 - Moving Right Along

Image for Big Picture Science weekly radio show
Big Picture Science - Moving Right Along

You think your life is fast-paced, but have you ever seen a bacterium swim across your countertop? You’d be surprised how fast they can move.

Find out why modeling the swirl of hurricanes takes a roomful of mathematicians and supercomputers, and how galaxies can move away from us faster than the speed of light.

Also, what happens when we try to stop the dance of atoms, cooling things down to the rock bottom temperature known as absolute zero.

And why your watch doesn’t keep the same time when you’re in a jet as when you’re at the airport. It’s all due to the fact that motion is relative, says Al Einstein.

Guests:

Permalink:  http://radio.seti.org/episodes/Moving_Right_Along

You can listen to this and other episodes at http://radio.seti.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Bright Planet Conjunction


Source - Space Weather News for August 17, 2014: http://spaceweather.com

WOW! MORNING CONJUNCTION:  Jupiter and Venus are converging in the eastern sky for a spectacular pre-dawn conjunction.  Closest approach is Monday morning, August 18th.  The event is highlighted on today's edition of http://spaceweather.com

MINOR STORM WARNING:   Minor geomagnetic storms are possible during the late hours of August 18th when a faint CME is expected to hit Earth's magnetic field head-on. 

Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).

Saturday, August 16, 2014

Beautiful Morning Conjunction


Source - NASA Science News for August 15, 2014

Set your alarm for dawn! Venus and Jupiter are converging for a spectacular conjunction in the early morning sky.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/15aug_conjunction/

A companion video is posted below and can also be viewed at: https://www.youtube.com/watch?v=yK57BMj2Vj4&feature=youtu.beVIDEO: https://www.youtube.com/watch?v=yK57BMj2Vj4&feature=youtu.be 



License: Standard YouTube License

Tuesday, August 12, 2014

Colliding Atmospheres: Mars vs Comet Siding Spring


Source - NASA Science News for August 12, 2014

Comet Siding Spring is about to fly historically close to Mars. The encounter could spark Martian auroras, a meteor shower, and other unpredictable effects. Whatever happens, NASA's fleet of Mars satellites will have a ringside seat.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/12aug_marscomet/

A companion video is posted below and can also be viewed at: https://www.youtube.com/watch?v=2R4yj7DtQbM&feature=youtu.be



License: Standard YouTube License

Sunday, August 10, 2014

Big Picture Science for 08/11/14 - De-Extinction Show

Image for Big Picture Science weekly radio show
Big Picture Science - De-Extinction Show

ENCORE: Maybe goodbye isn’t forever. Get ready to mingle with mammoths and gaze upon a ground sloth. Scientists want to give some animals a round-trip ticket back from oblivion. Learn how we might go from scraps of extinct DNA to creating live previously-extinct animals, and the man who claims it’s his mission to repopulate the skies with passenger pigeons.

But even if we have the tools to bring vanished animals back, should we?

Plus, the extinction of our own species: are we engineering the end of humans via our technology?

Guests:
  • Beth Shapiro – Associate professor of ecology and evolutionary biology, University of California, Santa Cruz
  • Ben Novak – Biologist, Revive and Restore project at the Long Now Foundation, visiting biologist at the University of California, Santa Cruz
  • Hank Greely – Lawyer working in bioethics, director of the Stanford Center for Law and the Biosciences at Stanford University
  • Melanie Challenger – Poet, writer, author of On Extinction: How We Became Estranged from Nature
  • Nick Bostrom – Director of the Future of Humanity Institute, Oxford University

This encore podcast was first released on  April 29, 2013

Permalink: http://radio.seti.org/episodes/De_Extinction_Show

You can listen to this and other episodes at http://radio.seti.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Wednesday, August 06, 2014

Rosetta Arrives at Target Comet


Source - NASA Science News for August 6, 2014

Today, after a decade-long journey chasing its target, the European Space Agency's Rosetta probe became the first spacecraft to rendezvous with a comet, 67P/Churyumov-Gerasimenko.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/06aug_rosetta6/

Historic Comet Rendezvous Today


Source - Space Weather News for August 6, 2014: http://spaceweather.com

ROSETTA COMET: The European Space Agency's Rosetta probe has reached 67P/Churyumov-Gerasimenko and is maneuvering to go into orbit around the comet's core. This is an historic event. After Rosetta goes into orbit, it will follow the comet around the sun, observing its activity from point-blank range. Moreover, in November, Rosetta will drop a lander onto the comet's strange surface.

Check http://spaceweather.com for more information and links to a live webcast of today's rendezvous.

Monday, August 04, 2014

Meteor Activity Intensifies


Source - Space Weather News for August 4, 2014: http://spaceweather.com

METEOR ACTIVITY: Meteor activity is increasing as Earth plunges deeper into the debris stream of Comet Swift-Tuttle, source of the annual Perseid meteor shower. Last night alone, NASA cameras recorded more than a dozen Perseid fireballs along with one sporadic bolide (exploding meteor) that might have dropped pieces of itself over the southeastern USA.  

Visit http://spaceweather.com for video and observing tips.

CHANCE OF FLARES: Sunspot AR2130 is directly facing Earth and it has a complex 'delta-class' magnetic field that harbors energy for strong flares.  X-flare alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).

Sunday, August 03, 2014

Big Picture Science for 08/04/14 - Eye Spy

Image for Big Picture Science weekly radio show
Big Picture Science - Eye Spy

Who’s watching you? Could be anyone, really. Social media sites, webcams, CCTV cameras and smartphones have made keeping tabs on you as easy as tapping “refresh” on a tablet. And who knows what your cell phone records are telling the NSA?

Surveillance technology has privacy on the run, as we navigate between big data benefits and Big Brother intrusion.

Find out why wearing Google Glass could make everything you see the property of its creator, and which Orwellian technologies are with us today. But just how worried should we be? A cyber security expert weighs in.

Also, the benefits of an eye in the sky. A startup company claims that their suite of microsatellites will help protect Earth’s fragile environment.

And Gary catches a cat burglar!

Guests:

Permalink: http://radio.seti.org/episodes/Eye_Spy

You can listen to this and other episodes at http://radio.seti.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Saturday, August 02, 2014

Amazing New Photo of ESA's Rosetta Comet


NASA Science News for August 2, 2014

As the European Space Agency's Rosetta spacecraft closes to within 1000 km of Comet 67P/Churyumov-Gerasimenko, the Rosetta science team has released a new image and temperature measurements of the comet's core. The temperature data show that 67P is too hot to be covered in ice and must instead have a dark, dusty crust.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/02aug_rosetta/

Tuesday, July 29, 2014

Perseid Meteors vs the Supermoon


Source - NASA Science News for July 29, 2014

Which is brighter--a flurry of Perseid fireballs or a supermoon? Sky watchers will find out this August when the biggest and brightest full Moon of 2014 arrives just in time for the peak of the annual Perseid meteor shower.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/28jul_perseids2014/

A companion video is posted below and can also be viewed at: http://youtu.be/JkKzMAzT5fs



License: Standard YouTube License

Monday, July 28, 2014

Mars Rover Sets Off-World Driving Record


Source - NASA Science News for July 28, 2014

NASA's Opportunity Mars rover, which landed on the Red Planet in 2004, now holds the off-Earth driving record of 25+ miles, and is not far from completing a full extraterrestrial marathon.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/28jul_oppy/

Sunday, July 27, 2014

Big Picture Science for 07/28/14 - Replace What Ails You

Image for Big Picture Science weekly radio show
Big Picture Science - Replace What Ails You

Germs can make us sick, but we didn’t know about these puny pathogens prior to the end of the 19th century. Just the suggestion that a tiny bug could spread disease made eyes roll. Then came germ theory, sterilization, and antibiotics. It was a revolution in medicine. Now we’re on the cusp of another one. This time we may cure what ails us by replacing what ails us.

Bioengineers use advancements in stem cell therapy to grow red and white cells for human blood. Meanwhile, a breakthrough in 3D printing: scientists print blood vessels and say that human organs may be next.

Plus, implanting electronic grids to repair neural pathways. Future prosthetics wired to the brain may allow paralyzed limbs to move.

We begin with the story of the scientist who discovered the bacteria that caused tuberculosis, and the famous author who revealed that his cure for TB was a sham.

Guests:

Permalink: http://radio.seti.org/episodes/Replace_What_Ails_You

You can listen to this and other episodes at http://radio.seti.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.