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Diamond Rings and Baily s Beads

APOD - 1 hour 37 min ago

Near the March 20 equinox the cold clear sky over Longyearbyen, Near the March 20 equinox the cold clear sky over Longyearbyen,


NGC 2403 in Camelopardalis

APOD - 1 hour 37 min ago

Magnificent island universe Magnificent island universe


Orion Spring

APOD - 1 hour 37 min ago

As spring comes to planet Earth's northern hemisphere, familiar winter As spring comes to planet Earth's northern hemisphere, familiar winter


Naked Eye Nova Sagittarii 2015 No 2

APOD - 1 hour 37 min ago

It quickly went from obscurity to one of the brighter stars in Sagittarius -- but it's fading. It quickly went from obscurity to one of the brighter stars in Sagittarius -- but it's fading.


Powers of Ten

APOD - 1 hour 37 min ago

How different does the universe look on small, medium, and large scales?  How different does the universe look on small, medium, and large scales?


Atlas V Launches MMS

APOD - 1 hour 37 min ago

Atlas V Launches MMS Atlas V Launches MMS


Shadow of a Martian Robot

APOD - 1 hour 37 min ago

What if you saw your shadow on Mars and it wasn't What if you saw your shadow on Mars and it wasn't


A Double Eclipse of the Sun

APOD - Sat, 03/28/2015 - 00:42

Can the Sun be eclipsed twice at the same time? Can the Sun be eclipsed twice at the same time?


Northern Equinox Eclipse

APOD - Fri, 03/27/2015 - 04:42

Snowy and cold is weather you might expect at the start of Snowy and cold is weather you might expect at the start of


Dark matter even darker than once thought

Science Daily - Thu, 03/26/2015 - 15:22
Astronomers have studied how dark matter in clusters of galaxies behaves when the clusters collide. The results show that dark matter interacts with itself even less than previously thought, and narrows down the options for what this mysterious substance might be.

Best view yet of dusty cloud passing galactic center black hole

Science Daily - Thu, 03/26/2015 - 08:59
The best observations so far of the dusty gas cloud G2 confirm that it made its closest approach to the supermassive black hole at the centre of the Milky Way in May 2014 and has survived the experience. The new result shows that the object appears not to have been significantly stretched. It is most likely to be a young star with a massive core that is still accreting material.

Sunshine, Earthshine

APOD - Thu, 03/26/2015 - 02:42

Sunshine, Earthshine Sunshine, Earthshine


A new spin on Saturn's peculiar rotation

Science Daily - Wed, 03/25/2015 - 15:23
The precise measurement of Saturn's rotation has presented a great challenge to scientists, as different parts of this sweltering ball of hydrogen and helium rotate at different speeds whereas its rotation axis and magnetic pole are aligned. A new method leads to a new determination of Saturn's rotation period and offers insight into the internal structure of the planet, its weather patterns, and the way it formed.

Supermassive black hole clears star-making gas from galaxy's core

Science Daily - Wed, 03/25/2015 - 15:18
A new study provides the first observational evidence that a supermassive black hole at the center of a large galaxy can power huge, wide-angled outpourings of material from deep inside the galaxy's core. These outflows remove massive quantities of star-making gas, thus influencing the size, shape and overall fate of the host galaxy.

Explosions of Jupiter's aurora linked to extraordinary planet-moon interaction

Science Daily - Wed, 03/25/2015 - 11:08
New observations of the planet's extreme ultraviolet emissions show that bright explosions of Jupiter's aurora likely also get kicked off by the planet-moon interaction, not by solar activity.

Aurora in the Backyard

APOD - Wed, 03/25/2015 - 06:42

On the night of On the night of


Largest asteroid impact zone found in Australia

Star Stuff - Tue, 03/24/2015 - 21:00
One of the largest asteroid impact zones on Earth discovered in outback Australia. Also; how Jupiter could be responsible for the formation of planet Earth, and sky watchers given a triple treat with a spectacular supermoon equinox eclipse.

NASA satellites catch 'growth spurt' from newborn protostar

Science Daily - Tue, 03/24/2015 - 18:36
Using data from orbiting observatories and ground-based facilities, astronomers have discovered an outburst from a star thought to be in the earliest phase of its development. The eruption, scientists say, reveals a sudden accumulation of gas and dust by an exceptionally young protostar known as HOPS 383.

NASA studies the sun in soft x-rays

Science Daily - Tue, 03/24/2015 - 18:36
At any given moment, our sun emits a range of light waves far more expansive than what our eyes alone can see: from visible light to extreme ultraviolet to soft and hard X-rays. In 2012 and 2013, a detector was launched on a sounding rocket for a 15 minute trip to look at a range of sunlight previously not well-observed: soft X-rays.

Earth During a Total Eclipse of the Sun

APOD - Tue, 03/24/2015 - 02:42

What does the Earth look like during a total solar eclipse? What does the Earth look like during a total solar eclipse?


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