NASA tracks giant flare-spewing sunspot across sun

NASA followed the biggest sunspot in many years as it roamed across the face of the sun, releasing solar flares along the way.

This massive sunspot could be seen during viewing of the eclipse. NASA/SDO

If you got a chance to don some proper eclipse eyewear and look up at the sun during the partial solar eclipse on October 23, you may have noticed a dark spot on the face of the sun. You weren't imagining things. What you saw was a sunspot so large, it was visible to the naked eye (with proper eye protection in place).

The sunspot on its journey. NASA/SDO

The sunspot, named AR 12192, is the biggest in 24 years. It strolled across the sun's face, letting off 10 good-size solar flares along the way. "Despite all the flares, this region did not produce any significant coronal mass ejections," said Alex Young, a NASA solar scientist. What we can learn from this is that large sunspot regions don't always spew major coronal mass ejections (massive clouds of solar particles), the kind of solar events that can impact electronics on Earth.

AR 12192 grew to about 80,000 miles across. Despite its grand size, the sunspot was only the 33rd largest region out of 32,000 that have been tracked since 1874. It's the biggest seen since 1990. The sunspot is currently hiding on the far side of the sun, but NASA says it could wind its way back around in a couple of weeks.

NASA released an image of the sunspot on its journey across the front of the sun, tracking the region from October 17 to October 29. It's fascinating to follow it as it rotates along a straight path, the dark spots coming together to form what looks like a shadowy set of islands.

The sunspot and its flares are giving scientists plenty of fodder for study. "Having so many similar flares from the same active region will be a nice case study for people who work on predicting solar flares," said Dean Pesnell, a project scientist at NASA's Solar Dynamics Observatory. "This is important for one day improving the nation's ability to forecast space weather and protect technology and astronauts in space."

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NASA tracks giant flare-spewing sunspot across sun

NASA Reveals Mysteries of 'Interstellar' Space

The new Paramount film "Interstellar" imagines a future where astronauts must find a new planet suitable for human life after climate change destroys the Earth's ability to sustain us. Multiple NASA missions are helping avoid this dystopian future by providing critical data necessary to protect Earth.

Yet the cosmos beckons us to explore farther from home, expanding human presence deeper into the solar system and beyond.

For thousands of years we've wondered if we could find another home among the stars. We're right on the cusp of answering that question.

If you step outside on a very dark night you may be lucky enough to see many of the 2,000 stars visible to the human eye. They're but a fraction of the billions of stars in our galaxy and the innumerable galaxies surrounding us.

Multiple NASA missions are helping us extend humanity's senses and capture starlight to help us better understand our place in the universe.

Largely visible light telescopes like Hubble show us the ancient light permeating the cosmos, leading to groundbreaking discoveries like the accelerating expansion of the universe. Through infrared missions like Spitzer, SOFIA and WISE, we've peered deeply through cosmic dust, into stellar nurseries where gases form new stars.

With missions like Chandra, Fermi and NuSTAR, we've detected the death throes of massive stars, which can release enormous energy through supernovas and form the exotic phenomenon of black holes.

Yet it was only in the last few years that we could fully grasp how many other planets there might be beyond our solar system. Some 64 million miles (104 kilometers) from Earth, the Kepler Space Telescope stared at a small window of the sky for four years.

As planets passed in front of a star in Kepler's line of view, the spacecraft measured the change in brightness. Kepler was designed to determine the likelihood that other planets orbit stars. Because of the mission, we now know it's possible every star has at least one planet.

Solar systems surround us in our galaxy and are strewn throughout the myriad galaxies we see. Though we have not yet found a planet exactly like Earth, the implications of the Kepler findings are staggering-there may very well be many worlds much like our own for future generations to explore.

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NASA Reveals Mysteries of 'Interstellar' Space

NASA Talk Will Explore Oceans At The Edge Of The Solar System

October 31, 2014

Image Caption: Europa might be the best place to look for environments where life could exist in the present day. Credit: NASA/JPL/Ted Stryk

HAMPTON, Va., Oct. 31, 2014 /PRNewswire-USNewswire/ On Tuesday, Nov. 4 at NASAs Langley Research Center in Hampton, Virginia, Kevin Hand from NASAs Jet Propulsion Laboratory (JPL) will present Ocean Worlds of the Outer Solar System at 2 p.m. in the Reid Conference Center.

http://photos.prnewswire.com/prnvar/20081007/38461LOGO

At least five moons in the outer solar system may have liquid water oceans. These oceans have likely been there for much of the history of the solar system and are considered good candidates for NASAs search for life beyond Earth.

The deputy chief scientist for solar system exploration at JPL in Pasadena, California, Hand will explain the science behind why researchers think they know these oceans exist, and what they know about the physical and chemical conditions on these worlds

Hand will be available to answer questions from the media during a news briefing at 1:15 p.m. that day. Media who wish to do so should contact Chris Rink at 757-864-6786, or by e-mail at chris.rink@nasa.gov, by noon on the day of the talk for credentials and entry to the center.

That same evening at 7:30, Hand will present a similar program for the general public at the Virginia Air & Space Center in downtown Hampton. This Sigma Series event is free and no reservations are required.

Hand will focus on the surface chemistry of Jupiters moon Europa and connect laboratory measurements to ground and space-based observations of its surface. He will also show how the study of several extreme environments on Earth are helping our search for habitable environments on distant worlds while providing new insights into Earths complex ecosystems.

At JPL, Hands research focuses on the origin, evolution, and distribution of life in the solar system with an emphasis on moons of the outer solar system that likely have liquid water oceans. His work involves modeling, laboratory experiments, and field campaigns and exploring some of Earths most extreme environments including the Dry Valleys of Antarctica, the depths of the Earths oceans, the icy permafrost of Alaska, and the glaciers of Kilimanjaro. In 2011, he was selected as a National Geographic Emerging Explorer.

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NASA Talk Will Explore Oceans At The Edge Of The Solar System

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Attack of the B Team E44 :: NASA Vehicle Assembly Building (VAB) pt. 2 - Video