Contained within the most massive and active star-forming region in the Small Magellanic Cloud, star cluster NGC 346 delivers energetic radiation that excites nearby gas, causing it to glow. The result is one of the most dynamic and intricately detailed images of a nearby star-forming region that has ever been taken by the Hubble Space [...]
More than four centuries after the brilliant star explosion witnessed by Tycho Brahe and other astronomers of the era, NASA’s Spitzer and Chandra space observatories and the Calar Alto observatory in Spain captured this image of the supernova remnant. This composite image combines infrared and X-ray observations.
The explosion left a blazing hot cloud of [...]
As the name implies, this reflection nebula associated with the star Rigel looks suspiciously like a fairytale crone. Formally known as IC 2118 in the constellation Orion, the Witch Head Nebula glows primarily by light reflected from the star. The color of this very blue nebula is caused not only by blue color of its [...]
With giant Saturn hanging in the blackness and sheltering Cassini from the sun’s blinding glare, the spacecraft viewed the rings as never before.
This marvelous panoramic view was created by combining a 165 images taken by the Cassini wide-angle camera over nearly three hours on Sept. 15, 2006. The mosaic images were acquired as the spacecraft [...]
Resembling a smudge more than an animal, a mysterious life form known as a placozoan has now joined other obscure and primitive creatures whose genomes are providing insight into how animals first arose more than 650 million years ago.
Called Trichoplax adhaerens, the creature’s genome sequence, reported in the Aug. 21 issue of Nature, has surprised [...]