Saturday, December 31, 2016

Rare Clouds Forming in the Stratosphere


Space Weather News for Jan. 1, 2017
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POLAR STRATOSPHERIC CLOUDS: Earth's stratosphere is normally free of clouds. Not this weekend, though. Observers around the Arctic Circle are reporting an outbreak of brilliantly-colored polar stratospheric clouds (PSCs). Some PSCs are associated with the destruction of ozone and can even cause regional ozone holes. The clouds observers are seeing now are so beautiful, they rival the auroras as must-see wonders of the Arctic. Learn more on today's edition of Spaceweather.com .

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Above: Polar stratospheric clouds over the Lofoten Islands of Norway, photographed by Eric Fokke on New Years Eve. Those colors are real! Browse the photo gallery for more sightings.
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Our Free Book: 101 Astronomical Events in 2017


Fraser Cain posted: " Let's forget all about 2016, and instead look forward to the amazing 2017 we all know we're going to have. And to help you celebrate this amazing year in space, we're pleased to publish an entire book on what you can observe in the upcoming year: 101 As"

New post on Universe Today

Our Free Book: 101 Astronomical Events in 2017

by Fraser Cain

101 Astronomical Events in 2017

101 Astronomical Events in 2017



Let's forget all about 2016, and instead look forward to the amazing 2017 we all know we're going to have. And to help you celebrate this amazing year in space, we're pleased to publish an entire book on what you can observe in the upcoming year: 101 Astronomical Events in 2017.

This totally free ebook was written by our own David Dickinson and contains all the predictable events coming up: the occultations, the eclipses, the meteor showers, the equinoxes, the super-moons and mini-moons. Every significant event coming up in 2017.

In addition, a few amateur astronomers like Cory Schmitz from PhotographingSpace and the Upside Down Astronomer Paul Stewart provided some of the beautiful photographs to inspire you to get outside.

Once again, this book is totally free. There's no cost to purchase it, there are no advertisements in it. All we ask is that you get out there, enjoy the night sky with your friends and family, and take amazing pictures to share with us and the rest of astronomy community.

Well, it would also really help if you shared the book with your friends, family, astronomy club, and forums.

This is an experiment. Will you download and actually use it? If so, then expect us to release a new edition every year. If not, then, we'll go back to the regular blog post version.

Thanks again to David for putting in an enormous amount of work 6 months ago to think through an entire year of observing, and to the readers and photographers who helped doublecheck the math to make sure it's accurate.

Click here to download a copy in PDF format, or click here to download a copy in EPUB format.

Fraser Cain
Publisher, Universe Today

Fraser Cain | December 31, 2016 at 4:57 pm | Tags: Featured | URL: http://wp.me/p1CHIY-yvI
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NASA’s Favorite Photos of 2016


Nancy Atkinson posted: "There are a group of unsung heroes at NASA, the people who travel the world to capture events in our exploration of space. They share their images with all of us, but most of the time, it's not just the pictures of launches, landings, and crucial mission "

New post on Universe Today

NASA's Favorite Photos of 2016

by Nancy Atkinson

There are a group of unsung heroes at NASA, the people who travel the world to capture events in our exploration of space. They share their images with all of us, but most of the time, it's not just the pictures of launches, landings, and crucial mission events that they capture. They also show us behind-the-scenes events that otherwise might go unnoticed, and they also capture the true personalities of the people behind the missions and events.

From exciting beginnings of rocket launches and rocket tests to the sad losses of space exploration icons, these photographers are there take these images that will forever remind us of the glories and perils of spaceflight and the joys and sadness of human life.

NASA photographers Bill Ingalls, Aubrey Gemignani, Joel Kowsky, Connie Moore, and Gwen Pitman chose some of their favorites images from 2016, and below are just a few:

In this 30 second exposure taken with a circular fish-eye lens, a meteor streaks across the sky during the annual Perseid meteor shower as a photographer wipes moisture from the camera lenses Friday, August 12, 2016 in Spruce Knob, West Virginia. Photo Credit: (NASA/Bill Ingalls)

The team from the Juno mission celebrate after they received confirmation from the spacecraft that it had successfully completed the engine burn and entered orbit of Jupiter on July 4, 2016 in mission control of the Space Flight Operations Facility at the Jet Propulsion Laboratory in Pasadena, CA. Juno will orbit the planet for 20 months to collect data on the planetary core, map the magnetic field, and measure the amount of water and ammonia in the atmosphere. Credit: (NASA/Aubrey Gemignani)

The United Launch Alliance Atlas V rocket carrying NASA's Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft lifts off on from Space Launch Complex 41 on Sept. 8, 2016 at Cape Canaveral Air Force Station in Florida. OSIRIS-REx will be the first U.S. mission to sample an asteroid, retrieve at least two ounces of surface material and return it to Earth for study. The asteroid, Bennu, may hold clues to the origin of the solar system and the source of water and organic molecules found on Earth. Photo Credit: (NASA/Joel Kowsky)

Annie Glenn, Widow of former astronaut and Senator John Glenn, pays her respects to her late husband as he lies in repose, under a United States Marine honor guard, in the Rotunda of the Ohio Statehouse in Columbus, Friday, Dec. 16, 2016. Credit: (NASA/Bill Ingalls)

Piers Sellers, former astronaut and deputy director of the Sciences and Exploration Directorate at NASA's Goddard Space Flight Center, speaks at NASA's Earth Day event, Friday, April 22, 2016 at Union Station in Washington, DC. Sadly, Sellers passed away on Dec. 23, after battling cancer. Credit: (NASA/Joel Kowsky)

The Soyuz TMA-20M spacecraft is seen as it lands with Expedition 48 crew members NASA astronaut Jeff Williams, Russian cosmonauts Alexey Ovchinin, and Oleg Skripochka of Roscosmos near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016. Credit: (NASA/Bill Ingalls)

Following his year in space on board the International Space Station, astronaut Scott Kelly spoke during an event at the United States Capitol Visitor Center, on May 25, 2016, in Washington. Credit: (NASA/Bill Ingalls)

The second and final qualification motor (QM-2) test for the Space Launch System's booster is seen, Tuesday, June 28, 2016, at Orbital ATK Propulsion Systems test facilities in Promontory, Utah. During the Space Launch System flight the boosters will provide more than 75 percent of the thrust needed to escape the gravitational pull of the Earth, the first step on NASA's Journey to Mars. Credit: (NASA/Bill Ingalls)

NASA astronaut Peggy Whitson gets her hair cut on Nov. 14, 2016 at the Cosmonaut Hotel in Baikonur, Kazakhstan, a few days before launching to spend about six months on the International Space Station. Credit: (NASA/Bill Ingalls)

Click on each of the images to see larger versions on Flickr. You can see the entire selection of these favorite photos from 2016 on the NASA HQ Flickr page.

Nancy Atkinson | December 31, 2016 at 10:32 am | Tags: Featured, navigation | URL: http://wp.me/p1CHIY-yvd
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EarthSky News - Dec 31 - Top 6 EarthSky Posts in 2016



December 31
Top 6 EarthSky Posts in 2016
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Solid evidence for a 9th planet

If it exists, the 9th planet has 10 times the mass of Earth - orbits 20 times farther from the sun than Neptune - and takes 20,000 years to orbit the sun once.

Tabby's Star: More weirdness

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How long to travel to Alpha Centauri?
Star travel via conventional propulsion and warp drives, plus a $100 million investment in proof-of-concept studies for an all-new way to get to the stars.
Top 10 cool things about stars
Unexpected, intriguing facts about the stars of our universe – including our sun – that you probably didn't know.
How far is a light year?
This post brings the scale of light-years down to the scale of miles and kilometers.
Top gallery of 2016: Eclipse over Indonesia
These were the most-viewed images at EarthSky in 2016.

Tonight ... A leap second 

Delay those New Year's plans. World timekeepers will add a leap second just before midnight.

Tonight ... Can you see a comet?

Comet 45P/Honda-Mrkos-Pajdušáková is there, but too faint to see with the eye alone.
Tonight … Sirius' midnight culmination
On New Year's Eve, look up for the brightest star Sirius in the constellation Canis Major. It's at its highest in the sky at midnight.
EarthSky 2017 moon calendar almost sold out!

Best New Year's gift ever! Purchase one before it's too late since we won't be ordering more. Your support means the world to us.

Sirius' midnight culmination
The sky's brightest star is highest in the sky at midnight.
Top gallery of 2016: Eclipse over Indonesia
Looking forward to 2017's total solar eclipse over North America? Then you'll enjoy these photos of the total solar eclipse over Indonesia in March 2016. They were the most-viewed images at EarthSky over this past year. This image is by Justin Ng.
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