Archive for the ‘Sun’ Category

NASA | IBEX Provides First View of the Solar System’s Tail

Thursday, July 11th, 2013

Source – NASA Interstellar Boundary Explorer (IBEX) mission :

The Interstellar Boundary Explorer (IBEX) mission science objective is to discover the nature of the interactions between the solar wind and the interstellar medium at the edge of our solar system.
IBEX is Roughly the size of a card table, the Interstellar Boundary Explorer is the latest in NASA’s series of low-cost, rapidly developed Small Explorers

It has long been assumed that our solar system, like a comet, has a tail. Just as any object moving through another medium – for example, a meteor traveling through Earth’s atmosphere – causes the particles to form a stream trailing off behind it. But the tail of our solar bubble, called the heliosphere, has never actually been observed, until now.

How Big Would the Sun Look on the Other Planets

Sunday, August 26th, 2012

How Big Would The Sun Look On the Other Planets

The 2012 Transit of Venus will not be repeated until the year 2117

Friday, June 1st, 2012

Source – Science@NASA:

On June 5th, 2012, Venus will pass across the face of the sun, producing a silhouette that no one alive today will likely see again.

Transits of Venus are very rare, coming in pairs separated by more than a hundred years. This June’s transit, the bookend of a 2004-2012 pair, won’t be repeated until the year 2117. Fortunately, the event is widely visible. Observers on seven continents, even a sliver of Antarctica, will be in position to see it.

The nearly 7-hour transit begins at 3:09 pm Pacific Daylight Time (22:09 UT) on June 5th. The timing favors observers in the mid-Pacific where the sun is high overhead during the crossing. In the USA, the transit will be at its best around sunset. That’s good, too. Creative photographers will have a field day imaging the swollen red sun “punctured” by the circular disk of Venus.

2012 Map of the transit of Venus:

NASA Venus Transit Observing Challenge

NASA Science – Solar Eclipse in the USA (May 20, 2012)

Monday, May 7th, 2012

Source – Science@NASA:

See Older post for google maps that show the path of the Eclipse.

A “ring of fire” solar eclipse is coming to the USA this spring. It’s the first annular eclipse visible from the contiguous United States in almost 18 years.

The comet and the coronal mass ejection

Saturday, October 8th, 2011

Source – Phil Blatt at BadAstronomy.com:

The Power of Sun Light

Thursday, August 11th, 2011

What the power of Sun Light can do….. (3500 degrees Celsius is the same as 6332 degrees Fahrenheit!) and just think we only receive about 1 billionth of the total Sun’s out put on any given day.


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