Amazing views of the Universe, including images from telescopes at the Smithsonian Public Observatory at the National Air and Space Museum in Washington, DC | @SIObservatory | airandspace.si.edu/POP
Tomorrow marks the 15th anniversary of the Chandra X-ray Observatory's launch! In commemoration, four newly processed images of supernova remnants dramatically illustrate Chandra’s unique ability to explore high-energy processes in the cosmos. Credit: NASA Chandra.
Comet ISON's dramatic final hours! A new analysis of data from the ESA/NASA Solar and Heliospheric Observatory (SOHO) spacecraft has revealed that comet 2012/S1 (ISON) stopped producing dust and gas shortly before it raced past the Sun and disintegrated.
Check out the jaw-dropping short list for the Royal Observatory's Astronomy Photographer of the Year award. In this photo by Robert Howell, the partially eclipsed Sun is visible behind the geyser of Old Faithful.
Solar astrophysicists reflect, and argue, about the current solar maximum in this New York Times article. Image credit: NASA/SDO.
Today, Cassini has been in Saturn orbit for 10 years! Explore some of its greatest images here, including "In Saturn's Shadow." Image credit: NASA/JPL/Space Science Institute.
This artist's conception shows a hypothetical alien world orbiting a red dwarf star. Many red dwarfs may have extreme space weather that might make it difficult for life to develop or survive on a planet in the habitable zone. (Image by David A. Aguilar, CfA)
Remote Supernova Magnified by Massive Galaxy Cluster MACSJ1720-Their light was amplified by the immense gravity of massive galaxy clusters in the foreground -- a phenomenon called gravitational lensing. Astronomers use the gravitational lensing effect to search for distant objects that might otherwise be too faint to see, even with today's largest telescopes The three supernovae exploded between 7 billion and 9 billion years ago,
Hubble Astronomers Use Supernovae to Gauge Power of Cosmic Lenses. Image Credit: NASA, ESA, STScI, et al.
Visit the National Air and Space Museum to see the newly installed WFPC2, the camera that "fixed" Hubble! This image shows how space debris impact sites were removed from the camera's radiator for analysis, leaving a random pattern of holes. Image by Eric Long, National Air and Space Museum.
Stephen Mudge in Brisbane, Australia captured this dramatic sequence of the setting, partially eclipsed Sun today. The shadow of the Moon just barely skimmed the Earth for today's eclipse. The greatest eclipse was visible from a small, uninhabited patch of Antarctica. The location was so remote, and the conditions so unfavorable, that not even the most ardent eclipse-hunters tried to get there.
This creative composite image of last night's total lunar eclipse, by John Ashley, demonstrates the effect of camera exposure. The bright part of the Moon is captured with short exposures (images at far left, upper left, lower right, and far right). The shadowed part of the Moon is captured with longer exposures (images are at lower left, center, and upper right). The red tint comes from sunlight filtering through Earth's atmosphere and falling on the eclipsed Moon.
What can you expect from tonight and tomorrow morning's total lunar eclipse? Find out on the blog: bit.ly/1erJd33 Image Caption: Total lunar eclipse, photographed at the Public Observatory at the National Air and Space Museum on December 21, 2010. Photos by Smithsonian staff.