Showing posts with label NASA. Show all posts
Showing posts with label NASA. Show all posts

Thursday, December 15, 2011

Lovejoy Lives!!!

The comet Lovejoy faced likely destruction when it entered the Sun's atmosphere (Image: NASA)

Over at Space.com, there's an interesting article about the comet Lovejoy's trip into the Sun's atmosphere. It traveled within 87,000 miles of the solar surface and withstood temperatures of up to 2 million degrees Fahrenheit!!!!!

It was a near certainty that the comet would be destroyed, but NASA's Solar Dynamics Observatory filmed it escaping from the fiery inferno, zipping off into space. Lovejoy has definitely earned the title of "Sungrazer." ;-)

Enjoy!!!

Wednesday, August 24, 2011

Triumph of Strife

Pluto, formerly the ninth planet of our solar system, was reclassified as a dwarf planet in 2006.

It's been five years since the International Astronomical Union established the current planetary definition. These rules knocked Pluto from its planetary status and into the new category of dwarf planet. This was an extended debate that actually began in 1801 when Ceres was discovered and became the first asteroid. However, it was the discovery of the Eris, named after the Greek goddess of Strife, that set off the finalization of the great planet debate.

The end result was the controversial demotion of Pluto. So now the Solar System has eight planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune) and five dwarf planets (Ceres, Pluto, Haumea, Makemake, and Eris).


Artist's concept of the Pluto System (Credit: NASA, ESA and G. Bacon)

Of course, astronomers are still scanning the heavens. These numbers and definitions are best considered works in progress. ;-)

Enjoy!!!

Saturday, March 12, 2011

I Want to Believe


Every so often there is some sensationalized announcement regarding alien life. It is always debunked or pulled back. Here's a link to the most recent episode in this unhappy farce:

Nasa Refutes Alien Discovery Claim

Frustrating.

Tuesday, March 1, 2011

Calling Mr. Carrington


On Thursday, February 24, NASA's Solar Dynamics Observatory caught this big ol' solar flare. It's an M 3.6 class flare, which is pretty impressive, albeit well below the X class.

I have a morbid fascination with solar flares. They are awesome expressions of cosmic power beyond human capacity. An event like the Solar Storm of 1859, the "Carrington Event", would mess up our modern communications something fierce. Of course, it could be even worse. Yikes!!!

This Pop Sci article has some more info.

Fortunately, it discharged away from Earth, so no electronic disruptions. That means we can enjoy this video worry and guilt free. Woo hoo!!!