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Latest Space science Stories

Combining Planetary Science And Astronomy To Hunt For Exoplanets
2012-11-29 08:41:26

Lawrence LeBlond for redOrbit.com - Your Universe Online Listen to the podcast “How Planets Form” with redOrbit's Dr. John Millis and planet-hunting expert Dr. Eric Mamajek of the University of Rochester. Have you ever looked up at the night sky and wondered just how many of the stars you see might have planets orbiting them, and if so, what those planets might be like? Our galaxy alone contains at least 200 billion stars, and researchers have been searching effortlessly to...

Coronal Mass Ejection Spotted By STEREO
2012-11-21 04:00:32

NASA Image Release: Karen C. Fox, NASA's Goddard Space Flight Center, Greenbelt, Md. On Nov. 20, 2012, at 7:09 a.m. EST, the sun erupted with a coronal mass ejection or CME. Not to be confused with a solar flare, a CME is a solar phenomenon that can send solar particles into space and can reach Earth one to three days later. When Earth-directed, CMEs can affect electronic systems in satellites and on Earth. Experimental NASA research models, based on observations from the Solar...

Space Weather Week Highlights ESA's Situation Awareness Program
2012-11-09 19:16:44

Lee Rannals for redOrbit.com — Your Universe Online The European Space Agency's (ESA) Space Situational Awareness program was spotlighted this week during the ninth European Space Weather Week. The Space Situational Awareness (SSA) program's recent developments in space weather activities were showcased during the conference. As part of SSA, ESA's space weather specialists are focused on developing warning services to help protect satellites and ground infrastructure. These...

Vesta May Hold The Secret To Youth
2012-10-31 13:50:22

Lee Rannals for redOrbit.com - Your Universe Online NASA's Dawn spacecraft has revealed data that shows protoplanet Vesta is continually stirring its outermost layer. The data shows that a common form of weathering that affects many airless bodies like Vesta in the inner solar system helps to keep them looking younger by not aging the outermost layer. Findings described in an upcoming issue of the journal Nature show that data indicates that carbon-rich asteroids have been...

NASA Observatory Captures Another X-Class Solar Flare
2012-10-23 15:32:34

[WATCH VIDEO: Active Region On The Sun Emits Another Flare] Lee Rannals for redOrbit.com — Your Universe Online NASA said its Solar Dynamics Observatory (SDO) captured the sun erupting with an X1.8 class solar flare on Monday. The solar flare came from an active region on the left side of the sun known as AR 1598, which has been the source of weaker flares. The "X-class" solar flares are the most intense flares, with the number near the X representing its intensity. An X2...

Solar Plasma Wave Unleashed
2012-10-21 08:45:32

April Flowers for redOrbit.com - Your Universe Online NASA´s Solar Dynamics Observatory captured a spectacular solar eruption on Friday. A giant super-hot wave of solar plasma larger than the planet Earth erupted from the Sun at 4:15 a.m. EDT and was caught in amazing high-definition detail by the NASA spacecraft. "Once it started breaking away, the process only took 10 hours before it was out of sight," NASA media specialist Steele Hill explained in a photo description. "The...

Moon Formation - Evidence Backs Up Giant Impact Theory
2012-10-17 14:15:54

[ Watch the Video: What is the Moon? ] | [ Watch the Video: Planetary Demolition Derby ] Lee Rannals for redOrbit.com - Your Universe Online Scientists are backing up a theory, claiming that the Moon was created when a planetary body the size of Mars collided with Earth. Planetary scientists found evidence that backs up the Giant Impact Theory, which was first proposed at a conference in 1975. The Giant Impact Theory says that Earth´s moon was created in an apocalyptic...

Space Debris Test Radar Deployed By ESA
2012-10-16 04:43:12

Lee Rannals for redOrbit.com - Your Universe Online A new radar designed to test methods for finding space debris has been deployed by the European Space Agency (ESA). ESA said it has installed the new test radar in Spain so it can be used to develop future debris warning services. The radar was deployed near Santorcaz, about 18 miles from Madrid. Its first series of acceptance and validation tests will begin in mid-November. ESA´s Space Situational Awareness (SSA) program...

Meteorite Shows Vesta Once Had Active Dynamo
2012-10-12 15:56:02

Lee Rannals for redOrbit.com — Your Universe Online Scientists have determined that the second-most-massive asteroid in the solar system may have once had an active dynamo. A meteorite found in Antarctica believed to be from Vesta holds clues to the asteroid once harboring a molten, swirling mass of conducting fluid generating a magnetic field, or dynamo. Scientists suspect that the composition of asteroids offer information about the diversity of planetary bodies within the...


Latest Space science 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...

Planetary Astronomy
2014-01-12 00:00:00

Image Caption: Artistic concept of a planetary system. Credit: Wikipedia/NASA/JPL-Caltech The term Astronomy encompasses a broad range of topics, including the study of stars, galaxies, and planets. In order to focus on the different areas of study, many subfields of astronomy emerge. One such area is the study of planets known, appropriately, as Planetary Astronomy. Observational Planetary Astronomy Even within the field of Planetary Astronomy, there are several divisions to...

Planetary and Space Science
2012-05-28 10:21:45

Planetary and Space Science is a peer-reviewed scientific journal established in 1959 and published by Elsevier 15 times per year. As of May 2012, the editor-in-chief is Rita Schulz (The Netherlands). The journal publishes original research articles and short communications. The main focus is on solar system processes which encompass multiple areas of the natural sciences. Research that involves planetary and space sciences involves many disciplines. Celestial mechanics is part of these...

Ring Current
2004-10-19 04:45:44

Ring Current -- A ring current is an electric current carried by charged particles trapped in a planet's magnetosphere. It is caused by the longitudinal drift of energetic (10-200 keV) particles. Earth's Ring Current Earth's ring current is responsible for geomagnetic storms. The ring current system consists of a band, at a distance of 3-5 RE(1), which lies in the equatorial plane and circulates clockwise around the Earth (when viewed from the north). The particles of this region...

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2004-10-19 04:45:42

Planetary Ring -- A planetary ring is a ring of dust and other small particles orbiting around a planet in a flat disc-shaped region. The most spectacular and famous planetary rings are those around Saturn, but all four of the solar system's gas giant planets (Jupiter, Saturn, Uranus, Neptune) possess ring systems of their own. The origin of planetary rings is not precisely known, but they are thought to be unstable and dissipate over the course of tens or hundreds of millions of...

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Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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