Big Astro Fun

What constitutes 'fun' for astronomers? Well, besides getting new data and results, it might be *talking* about their new data and results. A lot of astronomers will get a chance to do this next week at the twice-annual American Astronomical Society meeting. This one is happening in Seattle, WA, where, in addition to rain, many new and exciting discoveries are expected. Chandra will have new stories coming out on Wednesday and Thursday so keep an eye open for those here. We'll be posting more information as we go, but in the meantime, here's an official announcement about next week's meeting:
Student Poems Inspired by Chandra Releases (2)
Jonathan Taylor, Senior Lecturer in Creative Writing at De Montfort University in the UK, wrote two poems called 'History Lesson' and 'Black Hole in B-Flat,' both inspired by Chandra discoveries, and featured on Chandra's blog. Because of the success of these poems, Chandra and De Montfort University subsequently ran a competition for Creative Writing undergraduate students, in which they were invited to submit poems inspired by one of Chandra's press releases. The competition aimed to uncover the poetry inherent in the kind of scientific discovery undertaken by Chandra, and the four winning entries certainly succeeded in doing precisely that.
Here are the first and second placegetters in the competition. The third and fourth placegetters included in a previous blog posting.
Happy Winter Solstice
This is a hectic season with many reasons to celebrate. One of the oldest and, in many ways, practical rites during this time in December involves marking the winter solstice. Today, we know it as the shortest day (or longest night) in the Northern Hemisphere, and this year, the moment occurs at 6:38 pm Eastern time on Tuesday, December 21st.
Time, Gravity, and the Holiday Season

With the seeming time warp of the holiday season upon us, we decided to look up the answer to a question submitted by a Chandra visitor some time ago on the relationship of time and gravity. (Disclaimer: you may not use this text as an excuse to why you forgot to get your 'favorite' relative a gift this year. That's on you - not Einstein.)
Q:
Why is time influenced by gravity?
A:
Einstein's theory of relativity showed that space and time are not independent. One consequence of this is that time can appear to pass more rapidly or slowly for two different observers depending on their relative velocities and acceleration. According to the theory of relativity, acceleration and gravity are equivalent, so gravity can affect the flow of time.
An Intergalactic Weather Map
This composite image shows an intergalactic "weather map" around the elliptical galaxy NGC 5813, the dominant central galaxy in a galaxy group located about 105 million light years away from Earth. Just like a weather map for a local forecast on Earth, the colored circle depicts variations in temperature across a region. This particular map presents the range of temperature in a region of space as observed by NASA's Chandra X-ray Observatory, with the hotter temperatures shown in red and decreasingly cooler temperatures shown in orange, yellow, green, and blue. The numbers displayed when rolling your mouse over the image give the gas temperature in millions of degrees.
Student Poems Inspired by Chandra Releases (1)
Jonathan Taylor, Senior Lecturer in Creative Writing at De Montfort University in the UK, wrote two poems called 'History Lesson' and 'Black Hole in B-Flat,' both inspired by Chandra discoveries, and featured on Chandra's blog. Because of the success of these poems, Chandra and De Montfort University subsequently ran a competition for Creative Writing undergraduate students, in which they were invited to submit poems inspired by one of Chandra's press releases. The competition aimed to uncover the poetry inherent in the kind of scientific discovery undertaken by Chandra, and the four winning entries certainly succeeded in doing precisely that.
Here are the third and fourth placegetters in the competition. The first and second placegetters will be included in a future blog posting.