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Hazardous Radiation Threats To Future Deep-Space Astronauts

Hazardous Radiation Threats To Future Deep-Space Astronauts

April Flowers for redOrbit.com - Your Universe Online For NASA, manned missions to Mars and other deep-space destinations remain an essential goal. A new study from the University of New Hampshire, however, reveals that researchers are only...

Latest Sun Stories

2014-10-23 20:23:19

Conference Call Scheduled for Monday, November 10 LEHI, Utah, Oct. 23, 2014 /PRNewswire/ -- Vivint Solar (NYSE: VSLR) announced today that it plans to report financial results for the third quarter 2014 after the U.S. financial markets close on Monday, November 10, 2014. The company will host a conference call and simultaneous audio-only webcast at 5:00 p.m. Eastern Time to discuss its financial results for the quarter. http://photos.prnewswire.com/prnvar/20130806/LA59260LOGO To...

m7.3-flare
2014-10-04 03:00:36

Karen C. Fox, NASA's Goddard Space Flight Center The sun emitted a mid-level solar flare, peaking at 3:01 p.m. EDT on Oct. 2, 2014.  NASA's Solar Dynamics Observatory, which watches the sun 24-hours a day, captured images of the flare. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and...

flare up
2014-10-03 04:00:06

Steele Hill, NASA's Goddard Space Flight Center A snaking, extended filament of solar material currently lies on the front of the sun -- some 1 million miles across from end to end. Filaments are clouds of solar material suspended above the sun by powerful magnetic forces. Though notoriously unstable, filaments can last for days or even weeks. NASA's Solar Dynamics Observatory, or SDO, which watches the sun 24 hours a day, has observed this gigantic filament for several days as it...

2014-10-01 08:22:02

The Airline's Seasonal New York-Fort Lauderdale and Boston-Las Vegas Routes are on Sale Now; Guests Are Invited to Start Planning a 'Winter Thaw' with Deals and a 'Sun-Inspired Selfie' Competition for Chance To Win Roundtrip Flights to Winter Escape Destinations. SAN FRANCISCO, Oct. 1, 2014 /PRNewswire/ -- Virgin America, the award-winning airline that is reinventing travel, today announces two new seasonal routes - daily nonstop service between New York's John F. Kennedy International...

red dwarf superflare
2014-10-01 04:38:31

April Flowers for redOrbit.com - Your Universe Online The strongest, hottest and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star was detected by NASA's Swift satellite on April 23. The first salvo from this record-setting series of flares was easily 10,000 times more powerful than the largest solar flare ever recorded from our own Sun. "We used to think major flaring episodes from red dwarfs lasted no more than a day, but Swift detected at least seven...

2014-09-30 23:04:14

On September 16, 2014, Women’s Health Magazine offered its online readers a primer on sun screen use and treatments options for sun damaged skin. Dr. Simon Ourian of Epione Medical Corporation comments on the article and offers his suggestions for repairing sun damage with non-surgical aesthetic treatments. Los Angeles (PRWEB) September 30, 2014 On September 16, 2014, Women’s Health Magazine posted an article on its website titled “Can You Really Reverse Sun Damage?” that...

solar flare
2014-09-29 10:53:12

Karen C. Fox, NASA's Goddard Space Flight Center The sun emitted a mid-level solar flare, peaking at 10:58 p.m. EDT on Sept. 27, 2014, and NASA's Solar Dynamics Observatory captured images of the event. Solar flares are powerful bursts of radiation from the sun. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals...

coronal mass ejection
2014-09-26 03:00:31

Karen C. Fox, NASA's Goddard Space Flight Center Two main types of explosions occur on the sun: solar flares and coronal mass ejections. Unlike the energy and x-rays produced in a solar flare – which can reach Earth at the speed of light in eight minutes – coronal mass ejections are giant clouds of solar material that take one to three days to reach Earth. Once at Earth, these ejections, also called CMEs, can impact satellites in space or interfere with radio communications. During CME...

fastest CME
2014-09-25 02:30:29

Karen C. Fox, NASA's Goddard Space Flight Center Two main types of explosions occur on the sun: solar flares and coronal mass ejections. Unlike the energy and X-rays produced in a solar flare – which can reach Earth at the speed of light in eight minutes – coronal mass ejections are giant clouds of solar material that take one to three days to reach Earth. Once at Earth, these ejections, also called CMEs, can impact satellites in space or interfere with radio communications. During CME...

June 10 Solar Flare
2014-09-25 03:00:52

Barbara Vonarburg, ETH Zurich Strong solar flares can bring down communications and power grids on Earth. By demonstrating how these gigantic eruptions are caused, ETH physicists are laying the foundations for future predictions. The shorter the interval between two explosions in the solar atmosphere, the more likely it is that the second flare will be stronger than the first one. ETH Professor Hans Jürgen Herrmann and his team have been able to demonstrate this, using model...


Latest Sun Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

How Solar Cycles Impact Our Weather Here On Earth
2013-01-13 09:10:34

Solar cycles: what are they and why should we care about them? Solar cycles are made up of what are known as solar minimums (min) and solar maximums (max). We refer to a solar min at the time when the sun is not active with many sunspots, while a solar max is just the opposite when we see a large increase in sunspot activity. So how long do solar cycles last? Typically they run on what is known as an 11 year cycle from the max to the min and then start over again anew. As of 2012 we...

Weather Reference Library
2012-07-23 13:36:11

Being a meteorologist for over thirteen years you start to take note of many things in the atmosphere and how they repeat themselves. Our Climate is no different. The definition of climate is stated as: the collective weather data in regards to moisture and temperature for over 30 years for the same location. So to better understand our climate we need to look at this. First, we have average temperatures for given places based on the 30 year average. Some years the temps are warmer or...

Solar Physics
2012-05-02 19:16:53

Solar Physics is a journal for solar and solar-stellar research and the study of solar terrestrial physics. Founded in 1967 by solar physicist Cornelis de Jager and publisher D. Reidel, the journal treats all aspects of solar physics, ranging from the internal structure of the Sun and its evolution, to outer corona and solar wind in interplanetary space. Solar Physics has four more than forty years been the principal journal for publications of fundamental research on the Sun. It is...

45_677a1afb0bebd7ebfa1c045c737a5541
2010-10-28 18:40:42

The spectroheliograph captures a photographic image of the Sun at a single wavelength of light. The wavelength chosen usually coincides with a spectral wavelength of one of the chemical elements present in the Sun. George Ellery Hale and Henri-Alexadre Deslandres developed I independently in 1890 and was further refined in 1932 by Robert R. McMath to take motion pictures. It operates by using a prism together with a narrow slit that passes a single wavelength. The light focuses on a...

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Word of the Day
conjunto
  • A style of popular dance music originating along the border between Texas and Mexico, characterized by the use of accordion, drums, and 12-string bass guitar and traditionally based on polka, waltz, and bolero rhythms.
The word 'conjunto' comes through Spanish, from Latin coniūnctus, past participle of coniungere, to join together; see conjoin