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An Unusual Mountain on Asteroid Ceres

APOD - 5 hours 5 min ago

What created this large mountain on asteroid Ceres? What created this large mountain on asteroid Ceres?


Sunspot Group AR 2339 Crosses the Sun

APOD - 5 hours 5 min ago

How do sunspots evolve? How do sunspots evolve?


All the Colors of the Sun

APOD - 5 hours 5 min ago

It is still not known why the Sun's light is missing some colors. It is still not known why the Sun's light is missing some colors.


Stars of a Summer Triangle

APOD - 5 hours 5 min ago

Rising at the start of a northern summer's night, these Rising at the start of a northern summer's night, these


Planet Aurora

APOD - 5 hours 5 min ago

Planet Aurora Planet Aurora


Star Trails Above Table Mountain

APOD - 5 hours 5 min ago

Stars trail above and urban lights sprawl below in Stars trail above and urban lights sprawl below in


Venus, Jupiter, and Noctilucent Clouds

APOD - 5 hours 5 min ago

Have you seen the passing planets yet? Have you seen the passing planets yet?


Seeing a supernova in a new light

Science Daily - Tue, 06/30/2015 - 10:05
Type Ia supernovae are the 'standard candles' astrophysicists use to chart distance in the Universe. But are these dazzling exploding stars truly all the same? To answer this, scientists must first understand what causes stars to explode and become supernovae.

Triple Conjunction Over Galician National Park

APOD - Tue, 06/30/2015 - 06:42

What are those bright objects hovering over the horizon? What are those bright objects hovering over the horizon?


Even stars older than 11 billion years have Earth-like planets

Science Daily - Mon, 06/29/2015 - 11:10
33 Kepler stars have been selected for their solar like oscillations and a set of basic parameters have been determined with high precision showing that stars even older than 11 billion years have Earth-like planets.

High resolution far-infrared all-sky image

Science Daily - Mon, 06/29/2015 - 07:58
Astronomers have created all-sky image maps and released the full database to researchers. Far-infrared light is the key wavelength range for investigating the formation processes of stars and planetary systems. By observing far-infrared light, we can reveal the distribution of the interstellar medium, or gas and dust in interstellar space, as well as the processes of star formation within it.

Sharpless 308: Star Bubble

APOD - Mon, 06/29/2015 - 02:42

Blown by fast winds from a hot, massive star, Blown by fast winds from a hot, massive star,


New Horizons

APOD - Sun, 06/28/2015 - 05:42

In three weeks, the robotic New Horizons spacecraft will reach Pluto. In three weeks, the robotic New Horizons spacecraft will reach Pluto.


Rings and Seasons of Saturn

APOD - Sat, 06/27/2015 - 01:42

On Saturn, the rings tell you the season. On Saturn, the rings tell you the season.


Unexpectedly little black-hole monsters rapidly suck up surrounding matter

Science Daily - Fri, 06/26/2015 - 08:41
Researchers have found evidence that enigmatic objects in nearby galaxies -- called ultra-luminous X-ray sources (ULXs) -- exhibit strong outflows that are created as matter falls onto their black holes at unexpectedly high rates. The strong outflows suggest that the black holes in these ULXs must be much smaller than expected. Curiously, these objects appear to be "cousins" of SS 433, one of the most exotic objects in our own Milky Way Galaxy. The team's observations help shed light on the nature of ULXs, and impact our understanding of how supermassive black holes in galactic centers are formed and how matter rapidly falls onto those black holes.

Supercomputer model shows planet making waves in nearby debris disk

Science Daily - Thu, 06/25/2015 - 16:14
A new supercomputer simulation of the planet and debris disk around the nearby star Beta Pictoris reveals that the planet's motion drives spiral waves throughout the disk, a phenomenon that causes collisions among the orbiting debris. Patterns in the collisions and the resulting dust appear to account for many observed features that previous research has been unable to fully explain.

Giant galaxy is still growing

Science Daily - Thu, 06/25/2015 - 08:09
The giant elliptical galaxy Messier 87 has swallowed an entire medium-sized galaxy over the last billion years. For the first time a team of astronomers has been able to track the motions of 300 glowing planetary nebulae to find clear evidence of this event and also found evidence of excess light coming from the remains of the totally disrupted victim.

'Behemoth' bleeding atmosphere around a warm Neptune-sized exoplanet

Science Daily - Wed, 06/24/2015 - 13:24
Astronomers have discovered an immense cloud of hydrogen dispersing from a warm, Neptune-sized planet orbiting a nearby star. The enormous comet-like tail of the planet is about 50 times the size of the parent star.

How the brightest lights in the universe 'flicker'

Science Daily - Wed, 06/24/2015 - 11:54
Active galactic nuclei are the brightest objects in the universe. They are not lit up permanently, but rather 'flicker' extremely slowly. This insight helps researchers better understand the influence these nuclei and black holes have on their host galaxy.

Early stars captured in historic image

Star Stuff - Tue, 06/23/2015 - 22:00
Astronomers observe what could be some of the first stars to form after the Big Bang. Also: evidence for current volcanism on Venus, and new signs of methane from Mars.
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