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23 April 2010
Hubble, Renewed, Reinvigorated, Raring to Go
Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today has featured highlights from two year slices of the life of the Hubble, focusing on its achievements as an astronomical observatory. Today's article looks at the last two years, to April 2010. The stakes for the fifth, and final, Hubble [...]
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22 April 2010
Hubble's Late Teen Years: It Was the Best of Times, It Was the Worst of Times
Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today will feature highlights from two year slices of the life of the Hubble, focusing on its achievements as an astronomical observatory. Today's article looks at the period April 2006 to April 2008. The image of the Antennae galaxies, above, released [...]
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21 April 2010
Hubble Turns Sixteen, and Just Keeps on Working
Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today will feature highlights from two year slices of the life of the Hubble, focusing on its achievements as an astronomical observatory. Today's article looks at the period April 2004 to April 2006. First, in 1995, there was the Hubble Deep [...]
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20 April 2010
Hubble Enters its Teen Years, More Powerful, More Ambitious
Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today will feature highlights from two year slices of the life of the Hubble, focusing on its achievements as an astronomical observatory. Today's article looks at the period April 2002 to April 2004. As I mentioned yesterday, Hubble servicing mission 3B [...]
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19 April 2010
Hubble's 20th: At Least as Good as Any Human Photographer
Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today will feature highlights from two year slices of the life of the Hubble, focusing on its achievements as an astronomical observatory. Today's article looks at the period April 2000 to April 2002. The International Center for Photography gave its 2000 [...]
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18 April 2010
Hubble's 10th Birthday Gift: Measurement of the Hubble Constant
Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today will feature highlights from two year slices of the life of the Hubble, focusing on its achievements as an astronomical observatory. Today's article looks at the period April 1998 to April 2000. In October 1998, Hubble complemented the original Hubble [...]
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17 April 2010
Hubble: So Many Discoveries, So Quickly
Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today will feature highlights from two year slices of the life of the Hubble, focusing on its achievements as an astronomical observatory. Today's article looks at the period April 1996 to April 1998. The ability of the Hubble Space Telescope to [...]
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16 April 2010
Hubble's 20 Years: Now We Are Six
After the famous Apollo 8 "Earthrise" image, comet Shoemaker-Levy 9's impact with Jupiter, in July 1994, strikes us as the most stark reminder of the fragility of our home. And the Hubble gave us the clearest pictures of just how destructive that collision was; those dark blotches are bigger than the Earth. Equally memorable, from Hubble's [...]
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15 April 2010
Hubble's 20 Years: Time for 20/20 Vision
"And we have liftoff, liftoff of the Space Shuttle Endeavor, on an ambitious mission to service the Hubble Space Telescope" Without a doubt, Servicing Mission 1 in early December 1993 was the high point of the Hubble Space Telescope's third and fourth years in space. For starters, it successfully replaced the high speed photometer instrument with [...]
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14 April 2010
Hubble: It Was Twenty Years Ago Today
That NASA sent the Hubble into space, to stay. The date was 24 April, 1990; "Liftoff of the Space Shuttle Discovery, with the Hubble Space Telescope, our window on the universe". Over the next ten days I'll be reviewing these twenty years, starting with the first two today; I hope you will enjoy the show. (...)Read the rest [...]
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24 March 2010
UK Launches New Space Agency
Britain has created a new national space agency, with plans to build a multimillion-dollar space innovation center. Until now UK space policy has been split between government departments. "The new agency will be a focal point in order to coordinate in a much more streamlined and efficient manner, working both on national projects and [...]
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21 February 2010
Dark Matter in Distant Galaxy Groups Mapped for the First Time
Galaxy density in the Cosmic Evolution Survey (COSMOS) field, with colors representing the redshift of the galaxies, ranging from redshift of 0.2 (blue) to 1 (red). Pink x-ray contours show the extended x-ray emission as observed by XMM-Newton. Dark matter (actually cold, dark – non-baryonic – matter) can be detected only by its gravitational influence. In [...]
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20 February 2010
ESA's Tough Choice: Dark Matter, Sun Close Flyby, Exoplanets (Pick Two)
Key questions relevant to fundamental physics and cosmology, namely the nature of the mysterious dark energy and dark matter (Euclid); the frequency of exoplanets around other stars, including Earth-analogs (PLATO); take the closest look at our Sun yet possible, approaching to just 62 solar radii (Solar Orbiter) … but only two! What would be your [...]
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20 February 2010
Ozone on Mars: Two Windows Better Than One
Understanding the present-day Martian climate gives us insights into its past climate, which in turn provides a science-based context for answering questions about the possibility of life on ancient Mars. Our understanding of Mars' climate today is neatly packaged as climate models, which in turn provide powerful consistency checks – and sources of inspiration – for [...]
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16 February 2010
Cryosat-2 Set to Launch Next Week
The ESA  has scheduled the launch of Cryosat-2 for February 25th aboard a Russian Dnepr rocket from the Baikonur Cosmodrome in Kazakhstan. This is the second attempt at launching the Earth-observing satellite that's tasked with monitoring global ice thickness. The initial launch of Cryosat on October 8th, 2005 failed due to an anomaly of the [...]
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