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Latest Terrestrial planets Stories

MESSENGER at Mercury
2014-08-04 03:15:10

NASA Ten years ago, on August 3, 2004, NASA’s MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) spacecraft blasted off from Cape Canaveral, Florida, for a risky mission that would take the small satellite dangerously close to Mercury’s surface, paving the way for an ambitious study of the planet closest to the Sun. The spacecraft traveled 4.9 billion miles (7.9 billion kilometers) — a journey that included 15 trips around the Sun and flybys of Earth once,...

mercury magnetic field
2014-08-01 03:45:58

Stuart Wolpert, University of California - Los Angeles Earth and Mercury are both rocky planets with iron cores, but Mercury's interior differs from Earth's in a way that explains why the planet has such a bizarre magnetic field, UCLA planetary physicists and colleagues report. Measurements from NASA's Messenger spacecraft have revealed that Mercury's magnetic field is approximately three times stronger at its northern hemisphere than its southern one. In the current research,...

Scientists Spots Giant Space Weather Effects At Mercury
2014-06-16 03:32:22

Karen C. Fox, NASA The solar wind of particles streaming off the sun helps drive flows and swirls in space as complicated as any terrestrial weather pattern. Scientists have now spotted at planet Mercury, for the first time, a classic space weather event called a hot flow anomaly, or HFA, which has previously been spotted at Earth, Venus, Saturn and Mars. "Planets have a bow shock the same way a supersonic jet does," said Vadim Uritsky at NASA's Goddard Space Flight Center in...

mars sees mercury transit
2014-06-11 09:14:23

Brett Smith for redOrbit.com - Your Universe Online Observers on Earth have tracked Venus and Mercury crossing the face of the Sun countless times, but the phenomenon has never been observed from another planet – until now. On Tuesday, NASA announced that its Curiosity Rover had captured the first-ever observations of Mercury moving across the face of the Sun – also called a planetary transit – using its two-eyed Mast Camera (MastCam). "This is a nod to the relevance of...

Exoplanets Come In Three "Neapolitan" Flavors
2014-06-02 03:09:48

Harvard-Smithsonian Center for Astrophysics The planets of our solar system come in two basic flavors, like vanilla and chocolate ice cream. We have small, rocky terrestrials like Earth and Mars, and large gas giants like Neptune and Jupiter. We're missing the astronomical equivalent of strawberry ice cream - planets between about one and four times the size of Earth. NASA's Kepler mission has discovered that these types of planets are very common around other stars. New research...

Astronomers Discover The "Mega-Earth"
2014-06-02 03:30:17

Harvard-Smithsonian Center for Astrophysics Astronomers announced on Monday that they have discovered a new type of planet - a rocky world weighing 17 times as much as Earth. Theorists believed such a world couldn't form because anything so hefty would grab hydrogen gas as it grew and become a Jupiter-like gas giant. This planet, though, is all solids and much bigger than previously discovered "super-Earths," making it a "mega-Earth." "We were very surprised when we realized what we had...

Venus Express Preparing To Take The Plunge
2014-05-16 03:55:38

[ Watch the Video: ESA’s Venus Express Aerobraking Maneuver ] ESA After eight years in orbit, ESA’s Venus Express has completed routine science observations and is preparing for a daring plunge into the planet’s hostile atmosphere. Venus Express was launched on a Soyuz–Fregat from the Russian Baikonur Cosmodrome in Kazakhstan on 9 November 2005, and arrived at Venus on 11 April 2006. It has been orbiting Venus in an elliptical 24-hour loop that takes it from a distant 66...

mercury
2014-03-17 04:40:53

redOrbit Staff & Wire Reports - Your Universe Online NASA’s MESSENGER spacecraft has uncovered evidence that Mercury has contracted far more than previously believed over the past four billion years, according to research appearing in Sunday’s edition of the journal Nature Geoscience. In fact, lead author and Carnegie Institution of Washington planetary geologist Paul K. Byrne and colleagues analyzed global imaging and topographic data from the US space agency-sponsored mission...

Superhabitable Exoplanet
2014-01-24 11:27:06

[ Watch the Video: Are Some Exoplanets More Super Than Earth? ] Brett Smith for redOrbit.com - Your Universe Online The stellar habitable zone (SHZ), or Goldilocks zone, is considered the range of ideal orbital distances from a star for creating the conditions necessary for life. A new paper published recently in the journal Astrobiology argues that some planetary bodies outside this zone may hold environments even more habitable for life than those found here on Earth. The authors...

Super Earths May Be More Like Our Planet Than Previously Theorized
2014-01-09 06:55:52

[ Watch the Video: More Like Earth? Exoplanet Scientists Weight In ] Brett Smith for redOrbit.com - Your Universe Online It seems like the discovery of Earth-like planets is always announced with one caveat – the planet discovered probably isn’t much like Earth. Many of these are "super-Earths," several times larger than our own planet and thought to be completely covered in water. However, a new study to be published in an upcoming edition of the Astrophysical Journal, has...


Latest Terrestrial planets Reference Libraries

6_ca87660286bca43fbd7e3f90543baaa72
2004-10-19 04:45:42

Terrestrial Planet -- A terrestrial planet is a planet that is mostly composed of silicate rocks and may or may not have a relatively thin atmosphere. The term is derived from the Greek word for Earth, so an alternate definition would be those planets that are more Earth-like than not. Terrestrial planets are very different from gas giants, which may or may not have solid surfaces and are composed mostly of hydrogen and helium in various physical states. Only one terrestrial planet,...

4_eccd202c9b173d8cc2bddcaa6629203b2
2004-10-19 04:45:40

The Planet Venus is the second planet from the sun. It is often called the evening star or morning star and is brighter than any object in the sky except the sun and the moon. Because its orbit lies between the sun and the orbit of the earth, Venus passes through phases like those of the moon, varying from a large bright crescent when the planet is near inferior conjunction (nearest the earth) to a smaller silvery disk when it is at superior conjunction (farthest from the earth). Since...

4_9748baf12fb7dd89aa4315d7732196cd2
2004-10-19 04:45:40

The Planet Mercury -- in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon as it completes each revolution about the sun, although the visible disk varies in size with respect to its distance from the earth. Because its greatest elongation is 28, it is seen only for a short time after sunset or before sunrise. Since observation of Mercury is...

4_81f631e16d8d1d35870c180f342c83a12
2004-10-19 04:45:40

The Planet Mars -- in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Physical Characteristics Mars has a striking red appearance, and in its most favorable position for viewing, when it is opposite the sun, it is twice as bright as Sirius, the brightest star. Mars has a diameter of 4,200 mi (6,800 km), just over half the diameter of the earth, and its mass is only 11% of the earth's mass. The planet has a very thin atmosphere consisting...

4_33609f8ebef994f54be143abe0bef9f42
2004-10-19 04:45:40

Earth -- in geology and astronomy, fifth largest planet of the solar system and the only planet definitely known to support life. Gravitational forces have molded the earth, like all celestial bodies, into a spherical shape. However, the earth is not an exact sphere, being slightly flattened at the poles and bulging at the equator. The equatorial diameter is c.7,926 mi (12,760 km) and the polar diameter 7,900 mi (12,720 km); the circumference at the equator is c.24,830 mi (40,000 km)....

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Word of the Day
barratry
  • The offense of persistently instigating lawsuits, typically groundless ones.
  • An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
  • Sale or purchase of positions in church or state.
This word ultimately comes from the Old French word 'barater,' to cheat.
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