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NGC 3576: The Statue of Liberty Nebula

APOD - 35 min ago

What's happening in the What's happening in the

Jupiters Europa from Spacecraft Galileo

APOD - Wed, 09/28/2016 - 9:07am

What mysteries might be solved by peering into this crystal ball? What mysteries might be solved by peering into this crystal ball?

Gaia: Here Comes the Sun

APOD - Tue, 09/27/2016 - 9:07am

What would it look like to return home from outside our galaxy? What would it look like to return home from outside our galaxy?

Hubble spots possible water plumes erupting on Jupiter's moon Europa

Science Daily - Mon, 09/26/2016 - 2:29pm
Astronomers have imaged what may be water vapor plumes erupting off the surface of Jupiter's moon Europa. This finding bolsters other Hubble observations suggesting the icy moon erupts with high altitude water vapor plumes.

New low-mass objects could help refine planetary evolution

Science Daily - Mon, 09/26/2016 - 11:18am
When a star is young, it is often still surrounded by a primordial rotating disk of gas and dust, from which planets can form. Astronomers like to find such disks because they might be able to catch the star partway through the planet formation process, but it's highly unusual to find such disks around brown dwarfs or stars with very low masses. New work has discovered four new low-mass objects surrounded by disks.

X-rays that don't come from any known source

Science Daily - Mon, 09/26/2016 - 10:47am
Space is filled with types of light we can't see -- from infrared signals released by hot stars and galaxies, to the cosmic microwave background. Some of this invisible light that fills space takes the form of X-rays, the source of which has been hotly contended over the past few decades. A new study confirms some ideas about where these X-rays come from, shedding light on our solar neighborhood's early history. But it also reveals a new mystery -- an entire group of X-rays that don't come from any known source.

How to merge two black holes in a simple way

Science Daily - Mon, 09/26/2016 - 9:59am
The merger of two black holes, such as the one that produced the gravitational waves discovered by the LIGO Observatory, is considered an extremely complex process that can only be simulated by the world's most powerful supercomputers. However, two theoretical physicists have demonstrated that what occurs on the space-time boundary of the two merging objects can be explained using simple equations, at least when a giant black hole collides with a tiny black hole.

Australian technology installed on world’s largest single-dish radio telescope

Science Daily - Mon, 09/26/2016 - 9:58am
The world’s largest filled single-dish radio telescope has launched, and it relies on a piece of West Australian innovation. The telescope -- known as FAST -- uses a data system developed at the International Centre for Radio Astronomy in Perth and the European Southern Observatory to manage the huge amounts of data it generates.

Saturn from Above

APOD - Mon, 09/26/2016 - 9:07am

This image of Saturn could not have been taken from Earth. This image of Saturn could not have been taken from Earth.

Heart and Soul and Double Cluster

APOD - Sun, 09/25/2016 - 9:07am

Heart and Soul and Double Cluster Heart and Soul and Double Cluster

Harvest Moon Eclipse

APOD - Sat, 09/24/2016 - 9:07am

Harvest Moon Eclipse Harvest Moon Eclipse

Colorful demise of a sun-like star

Science Daily - Fri, 09/23/2016 - 3:49pm
Our sun will eventually burn out and shroud itself with stellar debris, but not for another 5 billion years.

Sunset at Edmontonhenge

APOD - Fri, 09/23/2016 - 9:07am

On September 18, the setting Sun illuminated both sides of the On September 18, the setting Sun illuminated both sides of the

ALMA Explores the Hubble Ultra Deep Field: Deepest ever millimeter observations of early Universe

Science Daily - Thu, 09/22/2016 - 2:16pm
International teams of astronomers have used the Atacama Large Millimeter/submillimeter Array (ALMA) to explore the distant corner of the Universe first revealed in the iconic images of the Hubble Ultra Deep Field (HUDF). These new ALMA observations are significantly deeper and sharper than previous surveys at millimetre wavelengths. They clearly show how the rate of star formation in young galaxies is closely related to their total mass in stars. They also trace the previously unknown abundance of star-forming gas at different points in time, providing new insights into the “Golden Age” of galaxy formation approximately 10 billion years ago.

Hubble finds planet orbiting pair of stars

Science Daily - Thu, 09/22/2016 - 10:07am
Astronomers using NASA's Hubble Space Telescope, and a trick of nature, have confirmed the existence of a planet orbiting two stars in the system OGLE-2007-BLG-349, located 8,000 light-years away towards the center of our galaxy. The Hubble observations represent the first time such a three-body system has been confirmed using the gravitational microlensing technique.

Zooming in on Star Cluster Terzan 5

APOD - Thu, 09/22/2016 - 9:07am

Zooming in on Star Cluster Terzan 5  Zooming in on Star Cluster Terzan 5

Twin jets pinpoint the heart of an active galaxy

Science Daily - Wed, 09/21/2016 - 5:01pm
Two particle jets shoot out from the heart of active galaxy NGC 1052 at the speed of light, apparently originating in the vicinity of a massive black hole. Researchers have now measured the magnetic fields in this area. They observed the bright, very compact structure of just two light days in size using a global ensemble of millimeter-wavelength telescopes. The magnetic field value recorded at the event horizon of the black hole was between 0.02 and 8.3 tesla. The team concludes that the magnetic fields provide enough magnetic energy to power the twin jets.

NASA scientists find 'impossible' cloud on Titan -- again

Science Daily - Wed, 09/21/2016 - 12:38pm
The puzzling appearance of an ice cloud seemingly out of thin air has prompted NASA scientists to suggest that a different process than previously thought -- possibly similar to one seen over Earth's poles -- could be forming clouds on Saturn's moon Titan.

In exploring the ‘now,’ new theory links flow of time with Big Bang

Science Daily - Wed, 09/21/2016 - 12:12pm
A simple question from his wife -- Does physics really allow people to travel back in time? -- propelled a physicist on a quest to resolve a fundamental problem that had puzzled him throughout his 45-year career: Why does the arrow of time flow inexorably toward the future, constantly creating new "nows"?

Feeding a Mars mission: The challenges of growing plants in space

Science Daily - Wed, 09/21/2016 - 10:39am
Plants will play a critical role in the survival of human beings on long-duration space missions, such as a mission to Mars.  However, as a new paper shows, many challenges need to be addressed if astronauts are to successfully grow enough food on board spacecraft and on other planets.


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