Notícias NASA

Observes the Lost Ancestors to Our Milky Way Galaxy

This NASA Hubble Space Telescope (HST) image of the central portion of a remote cluster of galaxies (CL 0939+4713) as it looked when the universe was two-thirds of its present age. Hubble’s high resolution allows astronomers to study, for the…

UA Scientist & Team Discover Surface Features Cover Titan

Scientists for the first time have made images of the surface of Saturn’s giant, haze-shrouded moon, Titan. They mapped light and dark features over the surface of the satellite during nearly a complete 16-day rotation. One prominent bright area they…

5 min read

Astronomers Discover Nearby Spiral Galaxy Hidden Behind the Milky Way

An international team of astronomers has uncovered a galaxy in our own cosmic back yard. Though only ten million light-years away (or five times the distance of the Andromeda galaxy – closest assemblage of stars to our Milky Way Galaxy),…

Hubble Observes the Moons and Rings of the Planet Uranus

BACKGROUND INFORMATION: URANUS Hubble Observes Uranus The Wide Field/Planetary Camera 2 of NASA’s Hubble Space Telescope provided the first detailed view of Uranus, its satellites and the ring structure, since the 1986 fly-by of the planet by the Voyager 2…

Hubble Space Telescope Measures Precise Distance to the Most Remote Galaxy Yet

An international team of astronomers using NASA’s Hubble Space Telescope announced today the most accurate measurement yet of the distance of the remote galaxy M100, located in the Virgo cluster of galaxies. This measurement will help provide a precise calculation…

13 min read

Hubble Rules Out a Leading Explanation for Dark Matter

Two teams of astronomers, working independently with NASA’s Hubble Space Telescope (HST), have ruled out the possibility that red dwarf stars constitute the invisible matter, called dark matter, believed to account for more than 90 percent of the mass of…

14 min read

Tale of Two Clusters Yields Secrets of Star Birth in the Early Universe

NASA’s Hubble Space Telescope has provided new insights into how stars might have formed many billions of years ago in the early universe. Hubble observations of a pair of star clusters suggest they might be linked through stellar evolution processes.…

Hubble Sees Auroral Emission Arcs Following the k Impact

In the Jupiter campaign, scientists wanted to see how the comet collisions affected the Jovian aurorae, rapid and irregular displays of colorful light in a planet’s night sky caused by the leakage of charged particles from the magnetosphere into the…

Evolution of the P/Shoemaker-Levy 9 “Gang of Four” Region

This series of eight NASA Hubble Space Telescope “snapshots” shows the evolution of the P-Q complex, also called the “gang of four” region, of comet P/Shoemaker-Levy 9. The eight individual frames chronicle changes in the comet during the 12 months…

Hubble Observations Shed New Light on Jupiter Collision

In the weeks following comet P/Shoemaker-Levy 9’s spectacular July collision with Jupiter, a team of Hubble Space Telescope astronomers has pored over imaging and spectroscopic data gleaned during the interplanetary bombardment. Their initial findings, combined with results from other space-borne…

6 min read

Jupiter Mapping Traces Changes in Comet P/Shoemaker-Levy 9 Impact Sites

This series of color-composite maps of Jupiter, assembled from images taken with NASA’s Hubble Space Telescope, allows astronomers to trace changes in the dark impact sites that resulted from the July 1994 impact of comet P/Shoemaker-Levy 9 with the giant…

Month Long Evolution of the D/G Jupiter Impact Sites from Comet P/Shoemaker-Levy 9

This series of snapshots, taken with NASA’s Hubble Space Telescope, shows evolution of the comet P/Shoemaker-Levy 9 impact region called the D/G complex. This feature was produced by two nuclei of comet P/Shoemaker-Levy 9 that collided with Jupiter on 17…

Hubble Uncovers a Hidden Quasar in a Nearby Galaxy (Cygnus A)

Because most quasars are billions of light-years away, it is a surprise to find one virtually in our own cosmic back yard – at a relatively close distance of 600 million light-years. This discovery by Hubble also means that astronomers…