Infrared Saturn Clouds Via NASA Http://ift.tt/2b5OdPE

The giant star Zeta Ophiuchi

Southern NGC7000

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Jupiter’s North Pole Unlike Anything Encountered in Solar System

NASA’s Juno spacecraft has sent back the first-ever images of Jupiter’s north pole, taken during the spacecraft’s first flyby of the planet with its instruments switched on. The images show storm systems and weather activity unlike anything previously seen on any of our solar system’s gas-giant planets.  “First glimpse of Jupiter’s north pole, and it looks like nothing we have seen or imagined before,” said Scott Bolton, principal investigator of Juno from the Southwest Research Institute in San Antonio. “It’s bluer in color up there than other parts of the planet, and there are a lot of storms. There is no sign of the latitudinal bands or zone and belts that we are used to – this image is hardly recognizable as Jupiter. We’re seeing signs that the clouds have shadows, possibly indicating that the clouds are at a higher altitude than other features.”

Credit: NASA/JPL-Caltech/SwRI/MSSS

The violent past of our galaxy’s black hole could help us solve a cosmic mystery

The supermassive black hole at the center of our galaxy is pretty quiet now, but new research suggests that 6 million years ago it was raging and gobbling up matter. Scientists think it could explain a mysterious disappearance.

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The Spider and the Fly - IC 417

NASA’s Spitzer Space Telescope floats ~93 million miles from earth as it silently observes our universe. In this image we see the nebula IC 417, located in the constellation Auriga, about 10,000 light-years away. Star formation is occurring rapidly in this nebula.

“A cluster of young stars called “Stock 8” can be seen at the top. The light from this cluster carves out a bowl in the nearby dust clouds, seen here as green fluff. Along the sinuous tail in the center and to the bottom, groupings of red point sources are also young stars.”

Credit: NASA/JPL

Mercury is passing directly across the sun for the first time in nearly a decade.

The innermost planet of our solar system will look like a small, dark circle cutting across the sun’s disc. In the U.S., the transit began shortly after 7 a.m. ET on Monday and will continue for more than seven hours.

At least part of the transit, which only happens about 13 times every century, will be visible across the Americas, Europe, Africa and large portions of Asia.

If you’re hoping to watch it, eye protection is key. NASA stresses that “viewing this event safely requires a telescope or high-powered binoculars fitted with solar filters made of specially-coated glass or Mylar.”

You won’t be able to see the tiny dot of Mercury on its celestial crawl without magnification, NASA says.

Another option: Check out one of the multiple live-streaming events going on Monday. NASA says it will stream the transit here, here and here.

It’s not all about the show — transits like this one have historically been, and continue to be, important research opportunities for scientists. First observed in 1631, the transits were later used to “measure the distance between the Earth and the Sun,”NASA said.

Now, they provide scientists an opportunity to study the planets’ exospheres — the thin layer of gases that make up their atmosphere.

“When Mercury is in front of the sun, we can study the exosphere close to the planet,” NASA scientist Rosemary Killen said in a release from the Jet Propulsion Laboratory. “Sodium in the exosphere absorbs and re-emits a yellow-orange color from sunlight, and by measuring that absorption, we can learn about the density of gas there.”

Additionally, scientists have found that a transiting planet causes a drop in the sun’s brightness.

This phenomenon is “the main way we find planets outside the solar system,” NASA says.

The Kepler mission, which is searching for habitable planets, has found 1,041 planets to date using the transit method. The mission says it is able to determine the size of a planet by observing its transit.

Image Credit: NASA

Rosette Field 

Spiral galaxy NGC 4911 in the Coma Cluster

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Core of the Crab Nebula.

Image Credit: NASA, ESA - Acknowledgment: J. Hester (ASU), M. Weisskopf (NASA / MSFC)