Starbursts in Dwarf Galaxies are a Global Affair
Bursts of star making in a galaxy have been compared to a Fourth of July fireworks display:
They occur at a fast and furious pace, lighting up a region for a short time before winking
out. But these fleeting starbursts are only pieces of the story, astronomers say. An analysis of
archival images of small, or dwarf, galaxies taken by NASA's Hubble Space Telescope
suggests that starbursts, intense regions of star formation, sweep across the whole galaxy
and last 100 times longer than astronomers thought. The longer duration may affect how
dwarf galaxies change over time, and therefore may shed light on galaxy evolution.
Read more... |  NewsCenter |  RSS Feed
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| HST Mission Update |
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SM4 Launch
STS-125, May 12, 2009, is the final Servicing Mission for the Hubble Space Telescope. Over 11 days and five spacewalks, the shuttle Atlantis’ crew will make repairs and upgrades to the telescope, leaving it better than ever and ready for
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| Exposure Time Calculators |
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The ETCs are web-based applications that assist Hubble users
in preparing Phase I and Phase II observing proposals.
The ETCs calculate exposure times or SNRs for simulated astronomical
observations using any of HST's primary instruments:
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| HST Observations |
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A synopsis of programs scheduled for observation with HST.
This Week
Last Week
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| Hubble Legacy Archive |
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Try out the new Hubble Legacy Archive!
hla.stsci.edu
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