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Latest Hubble Deep Field Stories

Young Dwarf Galaxies Found Bursting With Stars
2011-11-10 10:17:24

[ Video 1 ] | [ Video 2 ] Using its near-infrared vision to peer 9 billion years back in time, NASA's Hubble Space Telescope has uncovered an extraordinary population of young dwarf galaxies brimming with star formation. While dwarf galaxies are the most common type of galaxy in the universe, the rapid star-birth observed in these newly found examples may force astronomers to reassess their understanding of the ways in which galaxies form. The galaxies are a hundred times less massive,...

Astronomers Used Old Hubble Data To Confirm Extrasolar Planets
2011-10-06 12:47:47

NASA said on Thursday that astronomers have found evidence for two extrasolar planets using Hubble Space Telescope data from 1998. Using old Hubble images gives astronomers an invaluable time machine for comparing earlier planet orbital motion data to more recent observations, according to the space agency. Star HR8799 has four giant planets orbiting around it, three of which were discovered in 2007 and 2008 in near-infrared ground-based images taken by astronomers at W.M. Keck...

Most Ancient Supernovas Are Already Discovered
2011-10-05 06:30:26

Ten-billion-year-old exploding stars were a source of Earth's iron, TAU researchers say Supernovas – stars in the process of exploding – open a window onto the history of the elements of Earth's periodic table as well as the history of the universe. All of those heavier than oxygen were formed in nuclear reactions that occurred during these explosions. The most ancient explosions, far enough away that their light is reaching us only now, can be difficult to spot. A project...

Supermassive Black Holes Found In Small Galaxies
2011-09-16 10:49:27

  With the help of the Hubble Space Telescope, a researcher at the University of California, Santa Cruz (UCSC) and colleagues have discovered supermassive black holes growing in shockingly small galaxies, the university announced on Thursday. The findings, according to a UCSC press release, suggests that central black holes, which can be found in all massive galaxies, had formed at an earlier stage of galaxy evolution, since they are rarely observed in smaller "dwarf" galaxies. The...

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2011-06-16 13:25:00

The NASA/ESA Hubble Space Telescope has produced a close-up view of the galaxy Centaurus A. Hubble's out-of-this-world location and world-class Wide Field Camera 3 instrument reveal a dramatic picture of a dynamic galaxy in flux. Centaurus A, also known as NGC 5128, is well known for its dramatic dusty lanes of dark material. Hubble's observations, using its most advanced instrument, the Wide Field Camera 3, are the most detailed ever made of this galaxy. They have been combined here in a...

2011-01-26 12:26:00

WASHINGTON, Jan. 26, 2011 /PRNewswire-USNewswire/ -- Astronomers have pushed NASA's Hubble Space Telescope to its limits by finding what is likely to be the most distant object ever seen in the universe. The object's light traveled 13.2 billion years to reach Hubble, roughly 150 million years longer than the previous record holder. The age of the universe is approximately 13.7 billion years. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The tiny, dim object is a compact...

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2011-01-12 13:49:33

Astronomers who survey galaxies in the distant universe are getting some unexpected help from gravity, according to a new study. In a presentation at the American Astronomical Society meeting this week and a related paper in the current issue of the journal Nature, researchers say that as many as 20 percent of the most distant galaxies currently detected appear brighter than they actually are, because of an effect called "strong gravitational lensing." The discovery could change astronomers'...

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2010-10-20 12:45:00

A European team of astronomers using ESO's Very Large Telescope (VLT) has measured the distance to the most remote galaxy so far. By carefully analyzing the very faint glow of the galaxy they have found that they are seeing it when the Universe was only about 600 million years old (a redshift of 8.6). These are the first confirmed observations of a galaxy whose light is clearing the opaque hydrogen fog that filled the cosmos at this early time. The results were presented at an online press...

2010-08-12 08:01:37

A newly developed image analysis technique has significantly improved the sensitivity limits reached by the IBIS imager on board INTEGRAL, resulting in the deepest survey ever compiled of the entire sky in the energy range between 17 and 60 keV. Pushing the instrument towards its very limits, the novel method discloses a vast number of previously undetected faint sources, galactic and extragalactic alike. For more than seven years, the INTEGRAL observatory has been surveying the entire X-ray...

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2010-05-06 10:26:53

The discovery of a previously unresolved population of galaxies in the GOODS fields and the first measurements of properties of galaxies in the almost unexplored far-infrared domain are among the first exciting scientific results achieved by Herschel's PACS and SPIRE instruments. These findings confirm the extraordinary capabilities of ESA's new infrared space observatory to investigate the formation and evolution of galaxies. These are some of the many discoveries presented this week at the...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.