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Tag: Hubble

Hubble catches gamma-ray burst with highest energy yet-recorded

Hubble catches gamma-ray burst with highest energy yet-recorded

Science
Nov. 21 (UPI) -- With the help of the Hubble Space Telescope, scientists have characterized the gamma-ray burst GRB 190114C, which featured the highest energy ever recorded. The record-setting gamma-ray burst was first spotted in January by several telescopes, including NASA's Swift and Fermi telescopes. Shortly after its discovery, several other powerful telescopes, including space-based observatories like Hubble, set out to image the powerful object in greater detail. Earlier observations suggest material ejected during the gamma-ray burst explosion reached speeds of 99.999 percent the speed of light. As this material passed through gas surrounding the collapsing star, a shock wave was produced. The shock wave triggers the burst of gamma rays measured by observatories on Earth. The new...
Hubble captures portrait of unique spiral galaxy

Hubble captures portrait of unique spiral galaxy

Science
Nov. 15 (UPI) -- NASA shared a new Hubble Space Telescope image Friday featuring a galaxy that looks a lot like the Milky Way upon first glance. Like the Milky Way, NGC 772 is a spiral galaxy. It also has several small satellite galaxies circling its outskirts, just as the Milky Way does. Additionally, NGC 772 boasts a long, warped arm of gas, dust and stars. The arm was stretched and distorted by the gravity of one of the passing satellite galaxies. But while NGC 772 may look like many of the other spiral galaxies photographed by Hubble, its composition and structure are unique. NGC 772 is without a bar; it is an unbarred spiral galaxy. Bars are found in the centers of most spiral galaxies. Scientists estimate these pipelines of gas and dust help deliver materials to star-forming region...
NASA’s Hubble captures image of dynamic star death

NASA’s Hubble captures image of dynamic star death

Science
Aug. 23 (UPI) -- NASA and the European Space Agency on Friday released an image of a dying star that the agencies said confounded astronomers when they first studied it. The NASA/ESA Hubble Space Telescope image released this week was thought to be a picture of two separate objects, when in fact the objects are one star that has separated into two lobes. While they were recorded by astronomers as separate planetary bodies -- NGC 2371 and NGC 2372 -- the two lobes form something called a planetary nebula. The nebula NGC 2371/2 formed when a star started to die, pushing its outer layers out into space, leaving a stellar remnant behind. In the picture, the two lobes of material can be seen in the upper right and lower left corners, with the superheated stellar remnant roughly equidistant be...
Hubble photographs playful galactic duo

Hubble photographs playful galactic duo

Science
Aug. 9 (UPI) -- NASA shared an image, recently captured by Hubble, of the galactic duo UGC 2369 on Friday. The image showcases the pair caught in a playful dance. Long, long ago, the galaxies were separate, but today, they are in the midst of colliding. Slowly, their mutual gravitational attraction is pulling them closer and closer. As they've become entwined, gravity has distorted their features, altering their appearances. "A tenuous bridge of gas, dust and stars can be seen connecting the two galaxies, created when they pulled material out into space across the diminishing divide between them," NASA wrote in a news release. Still, despite their contortions and shared name, the two galactic entities remain visibly distinct. Millions of years from now, however, the pair will be almost c...
Hubble, Spitzer telescopes conduct chemical survey of mid-size exoplanet

Hubble, Spitzer telescopes conduct chemical survey of mid-size exoplanet

Science
July 2 (UPI) -- For the first time, scientists, with the help of a pair of NASA space telescopes, have identified the chemical signature of the atmosphere surrounding a mid-sized exoplanet. In size, mass and composition, Gliese 3470 b is like a cross between Earth and Neptune -- a rocky core surrounded by a thick layer of gas. The exoplanet weighs 12.6 Earth masses. Neptune by comparison, weighs 17 Earth masses. Mid-sized planets like Gliese 3470 b are common in other planetary systems, but are absent in our own solar system. Despite their ubiquity, researchers have been unable to confirm the chemical composition of a mini-Neptune exoplanet. By characterizing the makeup of Gliese 3470 b's atmosphere, scientists may be able to determine how medium-sized planets form. "This is a big disco...