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Latest Space science Stories

NASA's Dawn Science Team Presents Early Science Results
2011-10-13 10:19:27

Scientists with NASA's Dawn mission are sharing with other scientists and the public their early information about the southern hemisphere of the giant asteroid Vesta. The findings were presented today at the annual meeting of the Geological Society of America in Minneapolis, Minn. Dawn, which has been orbiting Vesta since mid-July, has found that the asteroid's southern hemisphere boasts one of the largest mountains in the solar system. Other findings show that Vesta's surface, viewed by...

NASA To Perform Student Experiments On International Space Station
2011-10-08 05:17:16

NASA announced it will provide support to Space Adventures, Ltd. of Vienna, Va., to conduct a global competition for students to design experiments that will be performed in space and broadcast around the world. NASA entered into a non-reimbursable Space Act Agreement with Space Adventures for astronauts aboard the International Space Station 250 miles above Earth to conduct the winning experiments on the orbiting outpost. The experiments will be performed on the U.S. portion of the space...

2011-10-05 13:31:37

MESSENGER scientists will highlight the latest results on Mercury from MESSENGER observations obtained during the first six months (the first Mercury solar day) in orbit. These findings will be presented October 5 in 30 papers and posters as part of a special session of the joint meeting of the European Planetary Science Congress and the Division for Planetary Sciences of the American Astronomical Society in Nantes, Frances. Scientists will also look ahead to MESSENGER observations still...

Image 1 - Dawn Finds Vesta's Mountains, Rough Surface, And Old-young Dichotomy In Hemispheres
2011-10-03 11:44:30

NASA´s Dawn mission, which has been orbiting Vesta since mid-July, has revealed that the asteroid´s southern hemisphere boasts one of the largest mountains in the Solar System. Other results show that Vesta´s surface, viewed at different wavelengths, has striking diversity in its composition particularly around craters.  The surface appears to be much rougher than most asteroids in the main asteroid belt.  Preliminary results from crater age dates indicate that areas...

Dawn Begins New Vesta Mapping Orbit
2011-10-01 07:07:44

NASA's Dawn spacecraft has completed a gentle spiral into its new science orbit for an even closer view of the giant asteroid Vesta. Dawn began sending science data on Sept. 29 from this new orbit, known as the high altitude mapping orbit (HAMO). In this orbit, the average distance from the spacecraft to the Vesta surface is 420 miles (680 kilometers), which is four times closer than the previous survey orbit. The spacecraft will operate in the same basic manner as it did in the survey...

2011-09-30 04:37:50

NASA has selected 11 science proposals for evaluation as potential future science missions. The proposals outline prospective missions to study the Earth's atmosphere, the sun, the Milky Way galaxy, and Earth-like planets around nearby stars. The selections were made from responses to Announcements of Opportunity for Explorer Missions and Explorer Missions of Opportunity released by the agency last November. The proposals were judged to have the best science value and feasible development...

Mars in 1980 as seen by the Viking 1 Orbiter
2011-08-29 06:29:30

  A green thumb and a little flair as a gourmet chef may be among the key skills for the first men and women who travel to the Red Planet later this century, according to a scientist who reported Sunday August 28 on preparations for the first manned missions to Mars. Speaking at the 242nd National Meeting & Exposition of the American Chemical Society (ACS), Maya R. Cooper said that provisioning the astronauts with food stands as one of the greatest challenges in scripting the...

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2011-08-22 16:37:42

A CSIRO study has shown why the lights are going out in the Universe. The Universe forms fewer stars than it used to, and a CSIRO study has now shown why - the galaxies are running out of gas. Dr. Robert Braun (CSIRO Astronomy and Space Science) and his colleagues used CSIRO´s Mopra radio telescope near Coonabarabran, NSW, to study far-off galaxies and compare them with nearby ones. Light (and radio waves) from the distant galaxies has taken time to travel to us, so we see the...

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2011-08-09 14:55:00

NASA said on Tuesday that the sun unleashed the biggest solar flare in four years. The NOAA GOES satellite measured an X6.9 flare on August 9, 2011 at 3:48 a.m. EDT The bursts of radiation cannot pass through Earth's atmosphere to harm humans on the ground, but it can disrupt GPS and communications signal, according to NASA. "It was a big flare," Joe Kunches, a space scientist with the National Oceanic and Atmospheric Administration (NOAA)'s Space Weather Prediction Center told CBS News....


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
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'