Category Archives: Hubble Telescope

Images include theHorsehead Nebula, which is a cold, dark cloud of gas and dust 1,500 light years away Another remarkable image is of NGC 130, one of Hubble's largest images ever made of a complete galaxy Some of the most striking images beamed back from Hubble were created during the death throes of stars

By Ellie Zolfagharifard For Dailymail.com

Published: 20:30 EST, 17 March 2015 | Updated: 10:05 EST, 18 March 2015

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More than any other telescope in orbit, Hubble has expanded the frontiers of human knowledge.

For 25 years, astronomers have used it to peer deep into distant galaxies with unrivalled clarity, revealing the breathtaking beauty of our universe.

In the April issue of National Geographic, some of the most stunning images beamed back for the telescope have been revealed.

The Horsehead Nebula is a cold, dark cloud of gas and dust, silhouetted against the bright nebula IC 434. The bright area at the top left edge is a young star still embedded in its nursery of gas and dust.The nebula is relatively close at 1,500 light years from Earth

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Images showcase how Hubble telescope is transforming our knowledge of space

Out of this world! Hubble telescope celebrates 25 years of stunning snaps of the Universe
Nasa #39;s eye in the sky has captured hundreds of thousands of amazing pictures of outer space for quarter of a century.

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Dark Ambient Sound Design
Dark ambient themes from film composer Michael W. Bell set to a collection of footage curtsy of the Hubble Telescope (ESA/Hubble).

By: Aurora Eclipse Productions

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Dark Ambient Sound Design - Video

New Hubble Telescope images show star exploding 4 times. News Today 2015
Astronomers observed the exciting and rare cosmic spectacle of a star exploding four times at different points across the galaxy, thanks to images produced b...

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New Hubble Telescope images show star exploding 4 times. News Today 2015 - Video

My Movie ode to hubble telescope

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My Movie ode to hubble telescope - Video

A salty ocean is lurking beneath the surface of Jupiter's largest moon, Ganymede, scientists using the Hubble Space Telescope have found.

The ocean onGanymede which is buried under a thick crust of ice could actually harbor more water than all of Earth's surface water combined, according to NASA officials. Scientists think the ocean is about 60 miles (100 kilometers) thick, 10 times the depth of Earth's oceans, NASA added. The new Hubble Space Telescope finding could also help scientists learn more about the plethora of potentially watery worlds that exist in the solar system and beyond.

"The solar system is now looking like a pretty soggy place," Jim Green, NASA's director of planetary science, said during a news teleconference today (March 12). Scientists are particularly interested in learning more about watery worlds because life as we know it depends on water to thrive. [See amazing photos of Ganymede]

Scientists have also found that Ganymede's surface shows signs of flooding. Youngparts of Ganymede seen in a videomap may have been formed by water bubbling up from the interior of the moon through faults or cryo-volcanos at some point in the moon's history, Green said.

Scientists have long suspected that there was anocean of liquid water on Ganymede the largest moon in the solar system, at about 3,273 miles (5,268 kilometers) across has an ocean of liquid water beneath its surface. The Galileo probe measured Ganymede's magnetic field in 2002, providing some data supporting the theory that the moon has an ocean. The newly announced evidence from the Hubble telescope is the most convincing data supporting the subsurface ocean theory yet, according to NASA.

Scientists used Hubble to monitor Ganymede's auroras, ribbons of light at the poles created by the moon's magnetic field. The moon'saurorasare also affected by Jupiter's magnetic field because of the moon's proximity to the huge planet.

When Jupiter's magnetic field changes, so does Ganymede's. Researchers were able to watch the two auroras "rock" back and forth with Hubble. Ganymede's aurora didn't rock as much as expected, so by monitoring that motion, the researchers concluded that a subsurface ocean was likely responsible for dampening the change in Ganymede's aurora created by Jupiter.

"I was always brainstorming how we could use a telescope in other ways," Joachim Saur, geophysicist and team leader of the new finding, said in a statement. "Is there a way you could use a telescope to look inside a planetary body? Then I thought, the aurorae! Because aurorae are controlled by the magnetic field, if you observe the aurorae in an appropriate way, you learn something about the magnetic field. If you know the magnetic field, then you know something about the moon's interior."

Hunting for auroras on other worlds could potentially help identify water-rich alien planets in the future, Heidi Hammel, executive vice president of the Association of Universities for Research in Astronomy, said during the teleconference. Scientists might be able to search for rocking auroras on exoplanets that could potentially harbor water using the lessons learned from the Hubble observations of Ganymede.

Astronomers might be able to detect oceans on planets near magnetically active stars using similar methods to those used by Saur and his research team, Hammel added.

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Jupiter's largest moon has an ocean, say scientists

Traci Watson, Special for USA TODAY 1:32 p.m. EDT March 12, 2015

Photo of Ganymede, taken from NASA's Galileo spacecraft.(Photo: NASA)

The biggest moon in the solar system harbors a salty ocean beneath its frozen surface, according to a study that examined the moon's flickering auroras to probe its interior.

A number of worlds in our solar system are thought to have oceans. But this is the first clear-cut data of its kind to suggest that a sea lies hidden under the icy shell of Jupiter's moon Ganymede, which is 50% bigger than our own moon. Scientific models predicted an ocean on Ganymede, and when NASA's Galileo spacecraft visited Ganymede in the 1990s, it collected data that hinted at an ocean. But new images from the Hubble Space Telescope offer strong confirmation of a liquid body of water inside Ganymede, scientists say.

Galileo's observations "provide inconclusive evidence for the ocean," says study co-author Joachim Saur of the University of Cologne. "The Hubble data require an ocean."

Finding an ocean on a celestial body hundreds of millions of miles from Earth is no easy feat. Saur and his team turned to the space-going Hubble, which trained its keen eyes on Ganymede in 2010 and again in 2011. The Hubble focused on Ganymede's two auroras, shimmering patterns in the sky similar to the earthly phenomenon known as the Northern Lights. A person standing on Ganymede's surface and looking up would see a red glow, Saur says.

Ganymede has two auroras, one around its north pole and one around its south pole, both created in part by the moon's own magnetic field. These auroras don't stay fixed in place. Instead, they wander slightly across Ganymede's face. With the help of supercomputers, the scientists calculated how much Ganymede's auroras would shift if the moon had a salty sea. A layer of salty water could carry electrical current, generating another magnetic field that would affect the auroras.

Illustration of the interior of Ganymede, Jupiter's largest moon.(Photo: NASA)

The researchers found that the aurora shift witnessed by Hubble nicely matched the prediction of what should happen if Ganymede has an ocean. Just as importantly, the Hubble data did not match the prediction for an ocean-less Ganymede, the scientists reported online last month in the Journal of Geophysical Research.

Ganymede's ocean is sandwiched between two layers of ice. That's not particularly hospitable to life, says planetary scientist William McKinnon of Washington University in St. Louis, who didn't work on the new study. But Saur says it's still possible that Ganymede's waters are habitable.

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Hubble telescope spots ocean on Jupiter moon Ganymede

Ode to Hubble-Barinica
Video created as part of the ESA Ode to Hubble Competition in celebration of Hubble #39;s 25th year in orbit. Credit space images and videos: NASA/ESA,HUBBLE TELESCOPE.

By: Desir de Palacio

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New Hubble Telescope images show star exploding 4 times
PROVIDED BY http://CNNNEXT.COM Astronomers observed the exciting and rare cosmic spectacle of a star exploding four times at different points across the galaxy, thanks to images produced by...

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Hubble Telescope : The Eagle Nebula : Hubble Space Telescope
Combining Images and clips from NASA / ESA to create a stunning video that explores on the the Universes most amazing places: The Eagle Nebula Bringing you the BEST Space and Astronomy ...

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Hubble Telescope : The Eagle Nebula : Hubble Space Telescope - Video