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Latest Smithsonian Center for Astrophysics Stories

Black Hole Found At The Center Of A Shredded Galaxy
2012-02-15 13:40:43

Astronomers, using the Hubble Space Telescope, say they have found a black hole that was once at the core of a now-disintegrated dwarf galaxy.

Image 1 - Kepler Finds Two More Two-Sun Planets
2012-01-12 05:42:31

Astronomers announced the findings of two new circumbinary planets, or worlds that orbit two different stars, during the American Astronomical Society (AAS) meeting in Austin, Texas on Wednesday.

Spitzer Finds Strange New Galaxy 'Species'
2011-12-02 04:25:01

In the distant reaches of the universe, almost 13 billion light-years from Earth, a strange species of galaxy lay hidden. Cloaked in dust and dimmed by the intervening distance, even the Hubble Space Telescope couldn't spy it.

Black Hole Birth Announcement
2011-11-17 14:40:32

For the first time, astronomers have produced a complete description of a black hole, a concentration of mass so dense that not even light can escape its powerful gravitational pull.

Alien Hunters Should Look For 'City Lights'
2011-11-04 03:42:51

In a new paper, researchers from Harvard-Smithsonian Center for Astrophysics and Princeton suggest a new technique for finding aliens: look for their city lights.

Study Deepens Dark Matter Mystery
2011-10-17 13:15:18

Like all galaxies, our Milky Way is home to a strange substance called dark matter. Dark matter is invisible, betraying its presence only through its gravitational pull.

Kepler Finds Invisible World Tugging On Planet
2011-09-09 05:06:44

When a planet runs five minutes late, astronomers get excited because it suggests that another world is nearby.

White Dwarfs May Need To Slow Down Before Going Supernova
2011-09-07 04:24:24

Older stars may have to slow down their rotations before exploding as supernovae.

Chandra Discovers Nearest Pair Of Supermassive Black Holes
2011-09-01 06:13:01

Astronomers using NASA's Chandra X-ray Observatory discovered the first pair of supermassive black holes in a spiral galaxy similar to the Milky Way.


Word of the Day
upstander
  • A person who stands up for something, as contrasted to a bystander who remains inactive.
  • One of the upright handlebars on a traditional Inuit sled.
The word 'upstander' in the first sense here is a play on the word 'bystander' and the idea of 'standing up' for something.