50 Years of NASA (nature.jpg)

50 Years of NASA (nature.jpg)

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50 Years of NASA

Last week marked the 50th anniversary of President Dwight Eisenhower signing the National Aeronautics Space Act. This little wiggle of the pen created the agency we all know today as NASA.


I Love the '90s -- at least 1999

Nine years ago this week, Chandra was launched aboard the Space Shuttle Columbia (sadly lost in the tragedy of 2003). While the satellite has performed excellently since it was deployed on July 23, 1999, there was a little drama in getting it going. You can read about some of the angst-inducing moments in the days leading up to launch in our Chandra Chronicles from that time.

Chandra spacecraft


Cosmic Fireworks

This week, many Americans will celebrate the 4th of July by enjoying fireworks. We love to see the explosion, followed by the colorful debris field as it expands and rains down from the sky. And, fireworks are often slightly different from one another – even if they originate from the same type of explosion. Of course, if they have different types or proportions of chemicals before in the explosive itself, the fireworks can look dramatically different. And, don’t forget that the environment they explode into – include wind or clouds of smoke – can affect how they look.


From Earth to the Universe (fettupicts.jpg)

From Earth to the Universe (fettupicts.jpg)

This image was uploaded with the post From Earth to the Universe.



From Earth to the Universe

From Earth to the Universe



Try Out the Universe on Your Desktop

In the last year we have seen tremendous development in visualizing the Universe through the digital world. Google Sky and Wikisky are examples of this progress. These interfaces have taken well-known all-sky surveys and detailed observations to create virtual observatories that show our nearest planetary neighbors, like Mars and Jupiter, to the most distant galaxies in the Universe.


Give that telescope a blanket

One of the most important tasks involved with having telescopes in space is keeping them at the correct and constant temperature. It's not just because telescopes like Chandra like to be comfortable – it's crucial in making the instruments perform as they should and return accurate science.

Chandra telescope
Interactive Chandra (flash)


Chandra Does Its Part For The Earth

When we talk about what Chandra observes, we're usually discussing things like black holes or galaxies or stars. But Chandra is a pretty amazing telescope and it can study many things in the Universe – including the Earth.


Where does the "X" in "X-ray" come from?

Here's a piece of high-energy astrophysics trivia (you never know when you might need to know these things). Where does the "X" in "X-ray" come from?


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