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This visualization shows clouds from a simulation using the Goddard Earth Observing System Model, Version 5 (GEOS-5.). The global atmospheric simulation ran at 3.5 km per grid cell and covered a single day: January 2, 2009. The model output the results at 10 minute intervals. Since there is only one day of simulation data, the sequence of clouds repeats several times. The white flash indicates the sequence is about to repeat. Credit: NASA/Goddard Space Flight Center Scientific Visualization ...

Tags: weather satellite cloud modeling meteorology Goddard Earth Observing System

This visualization is a time-series of the global distribution and variation of the concentration of mid-tropospheric carbon dioxide observed by the Atmospheric Infrared Sounder (AIRS) on the NASA Aqua spacecraft. For comparison, it is overlain by a graph of the seasonal variation and interannual increase of carbon dioxide observed at the Mauna Loa, Hawaii observatory. Credit: NASA/Goddard Space Flight Center and NASA/Jet Propulsion Laboratory Scientific Visualization Studio ... "carbon ...

Tags: carbon dioxide climatology climate change Aqua satellite climate

Astronomers have found One Ring to rule them all, not in the land of Mordor, but around Saturn, the Lord of the Rings of the solar system. Credit: NASA/JPL-Caltech

Tags: Saturn's rings new ring around Saturn Phoebe Iapetus Cassini Spitzer Space Telescope

Peering through the thick dust clouds of our galaxy's central parts (the bulge) with an amazing amount of detail, a team of astronomers has revealed an unusual mix of stars in the stellar grouping known as Terzan 5. Never observed anywhere in the bulge before, this peculiar cocktail of stars suggests that Terzan 5 is in fact one of the bulge's primordial building blocks, most likely the relic of a proto-galaxy that merged with the Milky Way during its very early days. This video zooms in ...

Tags: Terzan 5 globular cluster astronomy stars

An aurora, shining high above the northern part of Saturn, moves from the night side to the day side of the planet in this movie recorded by Cassini. These observations, taken over four days, represent the first visible-light video of Saturn's auroras. They show tall auroral curtains, rapidly changing over time when viewed at the limb, or edge, of the planet's northern hemisphere. The sequence of images also reveals that Saturn's auroral curtains, the sheet-like formations of light-emitting ...

Tags: Saturn Cassini northern lights aurora Saturn aurora

A star's spectacular death in the constellation Taurus was observed on Earth as the supernova of 1054 AD Now, almost a thousand years later, a super dense object -- called a neutron star -- left behind by the explosion is seen spewing out a blizzard of high-energy particles into the expanding debris field known as the Crab Nebula. X-ray data from Chandra provide significant clues to the workings of this mighty cosmic "generator," which is producing energy at the rate of 100000 suns. This ...

Tags: Crab Nebula Hubble Space Telescope Spitzer Space Telescope Chandra X-Ray Observatory supernova

This sequence of images of the galaxy Centaurus A begins with the deep Chandra X-ray Observatory image, then shows the radio image from the Very Large Array, then the optical image from the ESO's Wide-Field Imager (WFI) camera at the ESO/MPG 2.2-m telescope on La Silla. Finally, a composite image with all three wavelengths is shown. X-ray X-ray: NASA/CXC/CfA/R.Kraft et al Radio: NSF/VLA/Univ.Hertfordshire/M.Hardcastle Optical: ESO/VLT/ISAAC/M.Rejkuba et al

Tags: Centaurus A galaxies astronomy

This short movie highlights some of the important features of the Chandra X-ray Observatory image of Centaurus A. The entire Chandra image is shown, followed by a zoom into the center of the galaxy where the active nucleus (labeled "AGN") and the launching point for a jet are featured. Particles in the jet and radiation from the active nucleus are both powered by a supermassive black hole. The movie then pans to the upper left to show more of the jet, followed by a view of the shorter ...

Tags: galactic nucleus Centaurus A black hole

There is nothing subtle about the black hole in the galaxy Centaurus A. First off, it's about 10 million times more massive than the sun, and Chandra's X-ray image shows it's not just sitting quietly as a bright point in the middle. Instead, the monster black hole is responsible for powering massive jets, including one that extends to the upper left for some 13000 light years. Radio data also show the effect of these jets far beyond the plane of the galaxy. An image in optical light shows ...

Tags: Centaurus A black hole

Astronomers have obtained an unprecedented look at the nearest example of galactic cannibalism — a massive black hole hidden at the center of a nearby giant galaxy that is feeding on a smaller galaxy in a spectacular collision. Such fireworks were common in the early universe, as galaxies formed and evolved, but are rare today. The Hubble telescope offers a stunning unprecedented close-up view of a turbulent firestorm of star birth along a nearly edge-on dust disk girdling Centaurus A, the ...

Tags: Centaurus A black hole galaxies Hubble Space Telescope